Anyone who wants to try to magnify a source of light so that it is smaller than the source (without losing any light) with any combination of mirrors or lenses can use this simulator: phydemo.app/ray-optics/simulator/. But here is a reminder. All real sources of light emit light in at least 180 degrees. So in the simulator, you can't use a source that artificially emits in less than 180 degrees (you have to use point sources of light, you can line them up in a row to make a source that isn’t only one point). I made one setup with one LED bit.ly/3SawbxB and one with two LEDs bit.ly/3zQcjJJ. You can use the "detector" to see if you can get more light in one area than at the surface of either LED. Good luck!

@Sotanaht01

28 күн бұрын

But you can't make a point smaller than a point, it's already a point. The whole... point of the exercise is to make a non-zero sized light source focused to a smaller size. Because the heat of any real light source is going to be dispersed over the source's area, it is possible (and in fact, trivial) to make a small focal area hotter than any single point on the source. You have less TOTAL heat energy, but can reach a higher temperature. The best you can do to approximate this in your simulation is to use multiple point light sources arranged on the surface of an object. Then your goal is to concentrate the beams from those multiple sources into a single spot with more beams than any 1 of those points can produce.

@TheActionLab

28 күн бұрын

Line a bunch of point sources up in a row as the source.

@unknownxy8026

28 күн бұрын

How about a parabolic mirror?

@Lisa_Nicholas

28 күн бұрын

Arthur Eddington was the man.! I'd of like to have met him.

@williamdouglas8040

28 күн бұрын

The light source is not continuous - it is an array of point sources. As such, one can redirect the light from these sources (the LED emitters) individually onto a single point. There will be lost energy for sure so we are not breaking the laws of thermodynamics. That single point will have a very high temperature due to the energy from multiple emitters overlapping at a single emitter sized point. Can you create a fixture that allows for enough small lenses to be arranged in a way to make this into reality? It would be easy to do with a CNC capable of cutting and polishing glass. But to do it by hand would require multiple individual lenses and some sort of mounting structure. Perhaps a 3D printed structure and off-the-shelf lenses?

1:44 - So bright, it even convinced the rooster!

@patricklaenen3468

28 күн бұрын

Holy 🐄

@Half_Finis

28 күн бұрын

@@patricklaenen3468 stop commenting that dude xD 5th time

@patricklaenen3468

28 күн бұрын

@@Half_Finisholy cow

@td5786

27 күн бұрын

I swear I heard that exact sound hundreds of times before

@marianoguy

27 күн бұрын

​@@td5786 'holy cow' or the rooster?

How to annoy all astronomers in a 10 mile radius

@nicodesmidt4034

28 күн бұрын

Why would they be astonomizing at night ? You clearly can’t see anything. Luckily there are these powerful flashlights 😂

@patricklaenen3468

28 күн бұрын

Holy 🐄

@monsoon1234567890

28 күн бұрын

And all astronauts in a 300 mile radius

@nicodesmidt4034

28 күн бұрын

@@monsoon1234567890 astonomizing astronauts?

@ethanmartinez808

28 күн бұрын

​@@nicodesmidt4034 bro what?

That rooster got confused and at once he literally shouted, “IT’s MORNING!!!!” 😂 1:42

Vampires when they get blasted with 200k lumens

@JDMLOVER86

12 күн бұрын

Who needs magic or garlic when you got science without reason

@jshaw4757

10 күн бұрын

​@@JDMLOVER86Good point 😂...light is kinda magic too be fair though

1:21 a shot of the average lifted truck behind me on the highway

@caulkins69

28 күн бұрын

You're not kidding. I sometimes find myself fantasizing about rigging some sort of light that pops up out of my trunk so I can retaliate against those guys.

@laikon101

28 күн бұрын

🤣🤣🤣

@zappyapp

28 күн бұрын

@@caulkins69 you can do that fairly easily, won't be legal tho

@lavaphile399

28 күн бұрын

@@zappyapp Would it be a different case if he used a mirror to reflect their own light back on them?

@GoldenBoy-et6of

28 күн бұрын

The average lifted truck and the average speeding degenerates car. They all use the same ridiculous headlights. The speeding types even have lights under their car that are ridiculously bright

This is the flashlight horror movie victims need

@Yaivenov

25 күн бұрын

Victim: *clicks on flashlight in spooky place* Monster: *melts* 😂

@m7mdzuhair9gamer61

22 күн бұрын

@@Yaivenovlol

@ImShinTaRokGuoBaePress74

22 күн бұрын

This is for camping when u hear them footsteps outside

@Strangegotoofed

21 күн бұрын

​@@Yaivenov Viewers' eyes: burn + flashbanged

I’m a fan of your videos because there is always a little bit of info that I never knew. I’m 44 and I learn something with each video. Never stop learning.

Even the rooster was fooled 😂😂

The rooster woke up lmao

@Vile_Entity_3545

28 күн бұрын

It was inserted

@patricklaenen3468

28 күн бұрын

Holy 🐄

@MumboJumboZXC

28 күн бұрын

The power of editing

@RosesOfSaturn

28 күн бұрын

Lolol

@strategistaow3520

28 күн бұрын

I would too

"This is the world's brightest flashlight" *instantly flashbangs us*

@furonwarrior

27 күн бұрын

My eyes: ⚪️👄⚪️

@ilalebisap1

25 күн бұрын

*insert that one ash baby image*

@takikun1427

24 күн бұрын

@@ilalebisap1 LMFAOO YEAH

@themerovingian7154

22 күн бұрын

FRAG OUT!

@ishowslow5044

21 күн бұрын

THINK FAST CHUCKLE NUTS

In the army, we had these surefire mounted gun lights. It was called the Hellfire. Would burn your hand if you put it in front of the beam. But the coolest thing was when you put an IR filter on the end of the capsule. And put on NVG's. Could see for a half mile and no-one even knew you were there. You should get something like that for this flashlight.

@MarkoDash

25 күн бұрын

a quick google and surefire wants 4.3 grand for one of those.

@SHRBJHD

25 күн бұрын

@@MarkoDash Damn. Makes sense. It's a serious piece of kit. I'd love to see some videos made about that thing. You'll need to carry 12 radio batteries with you too. 6 to power it and 6 for back up.

@Albtraum_TDDC

19 күн бұрын

@@SHRBJHD do you mean size D cells? Or the old 9v ones?

@TRak598

19 күн бұрын

Surefire? The same company who manufactured the rare MGX LMG platform?

@SHRBJHD

19 күн бұрын

@@TRak598 Nope. It's a different Surefire.

Easy way to destroy homework😏

@clothlinggaming8637

16 күн бұрын

my flashlight ate my homework

@winter4498

15 күн бұрын

My action lab host ate my homework

@kenzheng701

15 күн бұрын

Teacher my flashlight burnt my homework

1:40 Rooster: It's morning?

@RC_Engineering

28 күн бұрын

I came here for that

@user-dk3gv5tm3v

28 күн бұрын

🤣🤣

@Avdlp

28 күн бұрын

😂😂

@danieldavid3945

28 күн бұрын

Exactly my thoughts

@laikon101

28 күн бұрын

🤣🤣🤣

New home defense option, death ray.

@tchrapko

28 күн бұрын

No joke. I don't necessarily want a gun in the house but have considered keeping a mega flashlight and a bat handy instead.

@freestalkerdotfr6391

28 күн бұрын

Call it the photon beam canon, it's way cooler and spote on

@lowtech81

28 күн бұрын

@@tchrapko get e a LEP flashligt. Low lumen, Spacerocket Candlea numbers. Laser Excited Phosphor, gives the flashlight insane spotlight effekt and MILES in range. Not cheap, but 2500m range on some of them

@SirSweeps40

28 күн бұрын

​@@lowtech81 This flashlight isn't cheap either.

@mokiloke

27 күн бұрын

I was considering this as soon as i saw it

0:44 old minecraft render distance

@EpicBunty

13 күн бұрын

Bruh why is everything Minecraft for you kids get your head outta ur arse alr.

@MUSICAL-Aaditya

12 күн бұрын

@@EpicBunty These are strangers and won't listen to you, looks like you're not used to the internet yet

@hunterchichester5720

11 күн бұрын

​@@EpicBuntybro has not been on the internet enough.

@dezzmotion4475

2 күн бұрын

​@@EpicBuntyWelcome to the internet. Also the time when minecraft players were all kids is long gone

Wow, James, thanks, this was the the most complete explanation I think I've ever heard about how that light concentration limitation works. I actually don't think I've heard anyone really give much of an explanation of that before. Well done!

I read a funny Reddit post by a delivery driver who was having trouble finding the delivery address one night, so he called the recipient. The guy said "tell me when you see it" and turned on one of these bad boys (an earlier model). The driver was like "when I see _what,_ man - oh never mind I see it!"

@Gefehhka

20 күн бұрын

Lmao

@Pinkcircleguy

19 күн бұрын

yeah i think i read that in an r/quityourbullsh*it video, don't know why it's in there though

@aaamogusthespiderever2566

18 күн бұрын

⁠@@Pinkcircleguyyea it never specified if the guy was close or not, he was likely in the neighborhood to see it (those flashlights really are powerful)

@rasmusandersson4461

16 күн бұрын

Hahah, I think he said something like "Follow the beam" And the driver went "oh my god, I see it"

@dielaughing73

16 күн бұрын

@@aaamogusthespiderever2566 I think he was a couple of blocks away. He'd found the neighbourhood but not the street

Shine this light in the worlds blackest room

@Brevicaa

22 күн бұрын

Moo

@damonedrington3453

22 күн бұрын

Well when you remember that said room is that way because it absorbs photons really well, and the flashlight puts out a LOT of photons- you can see the risk

@zoulcar9403

20 күн бұрын

​@@damonedrington3453mmmmmmmmmmmm heat

@amansuniverseyt

19 күн бұрын

*Yes*

@skat1140

18 күн бұрын

@@damonedrington3453 The advancement of science is nevertheless worth the risk. I hereby authorize this experiment and take full responsibility for any subsequent consequences.

This is seriously one of my favorite channels in all of KZread and i'm not even exaggerating

Love this guy. Hope he never leaves The Action Lab. Such a joy watching his experiments and reactions. And he explains everything so well.

"Give me your money!" [Turns this thing on] "Hu- HaaaAAAAAAAAAAAAAAAAAAaaaaaaaaaaaa.........."

@John-Smith02

23 күн бұрын

I pictured the Nazi guy who drank the wrong chalice in Indiana Jones (Raiders of the Lost Ark) I think

@WarshipMolester

22 күн бұрын

I pictured ash baby

@Clay.140

19 күн бұрын

"The last crusade".​@John-Smith02

@tretrefairman

19 күн бұрын

Here’s the comment I was looking for

@Th0ughtf0rce

17 күн бұрын

The guy who had his face melted was from Raiders of the Lost Ark. The guy who drank from the wrong​ chalice in The Last Crusade turned into a skeleton. @John-Smith02

That poor table has been through so much fire.

@lesliefranklin1870

28 күн бұрын

In case of fire, throw on wooden table.

@Janet-zz9eo

21 күн бұрын

Yep… it’s been tough for the table all these years

7:54 "I used the stones to destroy the stones"

1:08 neighbors: BRO I AM JUST TRYING TO SPEEP

New Styropyro questline started

@fizixx

28 күн бұрын

For sure!

@patricklaenen3468

28 күн бұрын

Holy 🐄

@Very_Grumpy_Cat

28 күн бұрын

​@@patricklaenen3468 no no no. ✝️🐄

@HyperVanilo

27 күн бұрын

@@Very_Grumpy_Cat Cross cow?

@Very_Grumpy_Cat

27 күн бұрын

@@HyperVanilo exactly you got it

Somebody needed a tax write-off for a flashlight they wanted really bad. 😁

@awemowe2830

24 күн бұрын

someone tried to order the worlds biggest fleshlight, but mistyped a few things and here we are... no clue how it happened twice though

@Albtraum_TDDC

19 күн бұрын

@@awemowe2830 first time is an accident. Second time is a fetish.

@NewbieEgg

17 күн бұрын

🐄 🐄 🐄 🐄

This is so interesting, thank you for the explanations :)

That's hilarious! "It's time to wake up" and then as soon as you turn on the flashlight, a rooster immediately wakes up.

@Redh4x_real

25 күн бұрын

It's an edit lol

Action Lab:"You can't break the laws of thermodynamics. " Styropyro: " Hold my laser pointer!"

1:43 The light was so bright the rooster thought it was morning 🐓🌄😂

"This flashlight is brighter than my car's headlights" That one guy driving down the road from a few miles away: Dang who turned their fog lights up so bright...

here's the thing.. that flash light wasn't one big light source but lots of tiny light sources. And while you couldn't shrink a light smaller than its original source you absolutely could focus all of the little light sources into one area the size of one single light source and that would have given you a higher temp and that laser beam effect you were looking for.

@netscrooge

28 күн бұрын

I agree. Seems obvious to me.

@transklutz

28 күн бұрын

But it's not a single lens. The rule works for a single lens.

@asleepappeal

28 күн бұрын

​@@transklutzSo.

@Milan_Openfeint

27 күн бұрын

@@transklutzConservation of etendue works for any combination of lens and mirrors. It's supposed to work even for lasers even if I don't understand why.

@paulczerner3286

27 күн бұрын

@@Milan_Openfeint sequential combination of simple optical elements, ok. I'm talking about an optical surface custom designed (not necessarily rotationally symmetric) to complement the source radiation image. Ever hear of deconvolution?

1:44 The rooster thought it was morning)))

@patricklaenen3468

28 күн бұрын

Holy 🐄

@RealMasterChief117

28 күн бұрын

Are people really this stupid)))

@Remotertx

21 күн бұрын

Yeah

@yousefaljarrah6625

9 күн бұрын

thats a sound effect

@Gimmickvr

3 күн бұрын

💀

Been asking in the comments for about a year to magnify the 100k lumen flashlight no one ever did I thought it be interesting. Thanks for doing this

Haha, funny that you added that rooster sound for that moment when you shone your --flashlight-- flood light on a wide area of the town!

Next video he's gonna create a sun

@johnsmithe4656

28 күн бұрын

That would be a fusion reactor. Yeah, we def need one of those.

@patricklaenen3468

28 күн бұрын

Holy 🐄

@NextLevelCode

28 күн бұрын

He’s Doc Ock now

@tommyinsua4666

28 күн бұрын

Imalent's motto is "Tame the Sun" lol.

@jubayerjubu4038

28 күн бұрын

spider man 2?

'wherever I shine it, a cockerel crows'

@vicatoren3967

25 күн бұрын

Bro turned into a mythological figure after getting this flashlight

2:00 Use Red filter on the magnifier lens.. I called this *Hellish Light* Where you can burn all things through contact😁😁

Damn you woke that rooster up ........😅🤣..!!

Nitpick: You're not "magnifying" the light, you're concentrating it.

@skat1140

18 күн бұрын

I forget, are they called magnifying lenses or concentrating lenses?

@gcewing

17 күн бұрын

@@skat1140 It depends on how the lens is being used. The term "magnifying lens" means the lens is being used to make an image appear larger. That's not what's being done here. In this application it would be called a focusing lens.

@lukkkasz323

17 күн бұрын

​@@gcewingnitpick: concetration magnifies the power of the light

@andyghkfilm2287

13 күн бұрын

@@gcewing if only the light were “appearing larger” when it went through this lens

@illikkal

8 күн бұрын

Concave and convex

It's almost as bright as Battlefield 3 flashlight

@Shadow_banned_by_YouTube

28 күн бұрын

Still the best Battlefield along with 4

@Dell-ol6hb

28 күн бұрын

@@Shadow_banned_by_KZread true

@arthurpiers1908

27 күн бұрын

Salute to you bro 😂🫡

@viktorianas

24 күн бұрын

BF4 is just a derivative of BF3, yet BF3 was a revolutionary improvement over previous BF.

@RazorPhoenix7

15 күн бұрын

that game came out in 2011, feeling old rn

I WANT THIS IN AN HORROR GAME! 0:38 probably blinded a couple of Astronauts 😂 1:43 Yep the rooster thinks that it is daytime 🤣

You took it way better than I would after burning out a 500 to 700 dollar flashlight... lol

There was an opportunity to have someone in the town when the flashlight was aimed at the town, and have that person record if they saw the flashlight.

That is an insane light. The amount of particulates in the air is stunning to see. I have experienced this with underwater fishing cameras. Most of these cameras have lights and IR lights that shine straight ahead. The reflecting and flaring off of particulate matter in the water column renders these cameras almost useless. The video looks like a snow storm or blizzard. However, I rigged mine up with a waterproof light that sits well above the camera and shoots down at a slight angle, preventing flare and you can see perfectly. It would likely stun us to know how many micro-grams of particles we breath in daily.

Gonna bring that to the spooky forest when it’s foggy in night

I just instantly thought of how useful this flashlight will be in scary games where they give you those tiny flashlight that only shines 10% of the screen.

I feel like this man erased my memory in 0:02

@aleksandarsimic4745

20 күн бұрын

I was about to say that😂

@theredknight3736

17 күн бұрын

Yeah i know right? I now feel only human...

@maritoguionyo

17 күн бұрын

What was I doing?

3:48 funniest part of the video for me. 😂

Now the creatures lurking in the woods can be seen so much easier

Imagine how confused the animals would be, turning this thing on and off during a total solar eclipse.

@DrDeuteron

28 күн бұрын

If were at a total and someone whipped this out, there would be blood.

@patricklaenen3468

28 күн бұрын

Holy 🐄

@BishopGantry

28 күн бұрын

Does it come with a strobe setting?

@ratiemand4529

27 күн бұрын

@@BishopGantry Yes it does! (I own the flashlight myself)

@patricklaenen3468

27 күн бұрын

@@ratiemand4529holy cow

When he did the headlight comparison test, I literally squinted my eyes even though my phone didn't actually get any brighter. That thing is a photon monster.

If you wanted to capture all the light and then focus it to a point, you would need a much more advanced mirror array to take all the light and reflect it inward to a point/collector. An example of this in the real world would be a solar power tower. So basically infront of the flashlight would be a bunch of mirrors all angled correctly to take that light and focus it to a point. Once that is achieved you could then attempt to use a magnifying glass to further condense the light to an even a smaller point. In the case of a solar power tower, the mirrors on the ground reflect the sun light in an area to point directly at the top of the tower in the middle of the array which heats water in a tank to create steam to run a turbine creating electricity. Same princable here just at a much smaller scale. Great video!

"One experiment is worth 1000 opinions." Great tagline.

1:41 dayum, even the rooster thought it was morning already. XD

You're waking up the plants with that bright Flashlight! let them sleep lol

Firefighters: So how did the fire start? Me: turning on a flashlight

Styropyro with a comically large laser pointer: "Lmao"

Whenever the light is on the table , I can't stop thinking of what is happening on the ceiling.

@juliavixen176

26 күн бұрын

Past the focal length of the lens, the light rays diverge. The ceiling actually gets more concentrated light _without_ that lens than with that lens on the flashlight.

That's not a flashlight, that's a weapon. Lol

@Felipe-sw8wp

28 күн бұрын

exaclty lol, just pointing it at someone is unsafe

@Portal2Fan1234

27 күн бұрын

True,best way to defend against burglars or bad people

@ChainsawFPV

27 күн бұрын

@@Portal2Fan1234 Agreed. And with keeping a good distance for your own safety. That light would stop anyone.

@CrystalWolf4

23 күн бұрын

​@@Felipe-sw8wp I accidentally pointed my MS18 (the version before MS32) & it destroyed my eyes temporarily. Luckily it was only less than a second & I quickly shut it off. Any longer & it would've blinded me. I shined it towards a neighbors house who was harrassing us & he called the sheriff.. Litlle did he know... I also knew the sheriff's who arrived 😂 They didn't do anything but harrass an old friend about his expired registration. They let him off because I was with them lol They could have easily got us all in deep water because there was a shoot out prior. But they were chill still.

@Felipe-sw8wp

23 күн бұрын

@@CrystalWolf4 looool nice use of this "gun". Glad your eyes are ok!

"This is the world's brightest flashlight" Proceeds to THINK FAST CHUCKLENUTS

Bro woke up the rooster. 😂😂

Personally night hiking with my dogs in the Oregon woods became one of my favorite hobbies once I bought a powerful 18v Ryobi One+ flashlight with multiple rechargeable batteries. It's so bright, shines so far & has great battery life. That it makes hiking at night so fun! I can light up things multiple football fields away so the more i got used to exploring in the woods at night the more i learned that I can scan my surroundings as I walk and most of the time I can see if there's any critters around me due to how reflective their eye's are from my flashlight. This gives me a better understanding of my surroundings. Obviously it's not perfect so I also carry a airhorn on the side of my backpack, a telescopic baton in my pocket and a few helpful things in my backpack just in case. You never know so it's better to just have things with you and not have to use them compared to something unexpected happening and not having something on you. Regardless once you start getting more used to exploring the woods at night it actually becomes such a uniquely wonderful experience. You learn to become more in tune with your senses and your sense of direction and your overall perception as a whole.

I'm not sure you can assume sun-like temperatures for a source based on wavelength similarity. The rate of radiative heat transfer is based on the temperature of the source and the sink. I'd guess that the maximal temperature is either a) the junction temperature of the LED (~350K, too cold, paper ignites ~ 500 K) or b) an effective temperature based on the light output (math below). The energy of each photon emitted by the LED: E=hc/λ where h is Planck's constant (6.626×10−34), c is the speed of light (3E8 m/s), and λ is the primary wavelength of the emitted light. For an example λ=500 nm, E=3.976E-19 J. The effective source temperature could be estimated by equating the power of the emitted light to the radiative power of a black body at the source temperature, T_source. Using the Stefan-Boltzmann law for power radiated by a black body: P_light=σA(T_source^4−T_a^4) With an example power of the emitted light (P_light): 0.3 W, ambient temperature (T_a): 300 K, surface area of LED (A): 1E-4 m^2, and solving for T_source: T_source^4=(P_light/σA)+T_a^4 Substituting the example values, T_source ≈ 783.7K If true, it's no surprise that the LEDs can back-drive enough heat to melt themselves, since the effective temperature is 300-400 K above the junction temperature. You could measure the total energy flux by measuring how quickly the beam can heat a matte black target from Temp 1 to Temp 2 and estimate the source temperatures from that.

@theegg-viator4707

28 күн бұрын

The smartest goose of all geese. 👍🏻

@Tesla_Ampersand_Friends

19 күн бұрын

He is mixing up the color temperature of light and the thermal temperature of material objects. For instance, a heat lamp is 6000kelvin. To achieve the same amount of ouch ouch hot hot heat from the latter would require driving the source with tremendously more power than the former. Hopefully he understands this throws a hitch in his explanation of things. 6:13 6:21 7:04 7:36 Also RIP flashlight, but she didn't get anywhere near 5,726.85c or 10,340.33f LOL

This foo really woke up all the birds and chickens lol

What if the creation of this company and their goal of creating the world’s brightest flashlight is a result of the original company owner’s unimaginable fear of horror game scenarios

0:50 Looks familiar... Isn't it the same parking lot where Veritassium tested night vision goggles? He is lucky to miss your test.

The issue with you bringing up the conservation of Etendue in this context is that you're treating "the flashlight" as "the source" of light. There are 32 LEDs which are individual light sources. The way to magnify this would be to take the lens off the end and create an array of optics to redirect each LED inward toward a predetermined focal distance. You could get an area the size of one LED to have 32 times the the energy of just putting something on the flashlight. More, actually, since the area between the LEDs counts as area on which the energy is being spread across.

@netscrooge

28 күн бұрын

Yes, the concept was being applied in a simplistic manner.

@simontillson482

27 күн бұрын

Yeah, I thought that too. Like how we combine multiple laser beams to make a powerful cutting tool. It won’t increase the maximum temperature, but it’ll sure increase the energy density you can put into that focus!

@juliavixen176

26 күн бұрын

The focal point can't get hotter than the light sources, because if it could, it would be heating up the light sources... because the lenses are symmetric.

@Spoco

24 күн бұрын

One might as well take this deeper: why would the light emitting diode, an entire semiconductor device, be "the source" of light? A photon is emitted when an electron falls into a "hole" in the electron shell of just one atom in the p-type semiconductor material.

How have I gone as long as I have without subbing to this wonderful channel!?

I want one of those lights. Thanks for the info. I had never imagined that was possible. You do have some interesting things, I'm quite jealous m8. I've a bit of catching up to do. 😆

THATS BRIGHT

@saroar.

28 күн бұрын

REALLY BRIGHT

@DW-indeed

28 күн бұрын

HOLY COW

@borisbahleda2989

28 күн бұрын

Just a little

@jonorgames6596

28 күн бұрын

You're RIGHT!

@nicodesmidt4034

28 күн бұрын

@@jonorgames6596that’s bright 😂

You would never get scared with this one in the dark....😂

Not me shielding my eyes like my phone screen is gonna be 200k lumens too

I’m gonna need this walking in the woods at night

$749.00! It should cook the Moon for that price! Great video!

@jeremiahbullfrog9288

28 күн бұрын

When you need this device, that's actually pretty cheap.

@abde4645

28 күн бұрын

Yeah this is very cheap considering how much power it puts out.

@patricklaenen3468

28 күн бұрын

Holy 🐄

@DonnyHooterHoot

28 күн бұрын

@@jeremiahbullfrog9288 Nope!

@jeremiahbullfrog9288

28 күн бұрын

@@DonnyHooterHoot i guess you don't need it then

Cool experiment. How about putting a conical tube made of mirrors or reflective material on the flashlight? Then putting a magnifying lens on the small hole at the end?

@JonDoe-uq1mk

28 күн бұрын

The LEDs would burn like at 7:44

@dwaneanderson8039

28 күн бұрын

What you really need to do is put a separate lens on each LED and focus each of them on the same point. That way, you can get a point as small as a single LED, but with the energy of all of them combined.

@whatusernameis5295

28 күн бұрын

you would lose some energy into the mirrors

@maxpayne2574

27 күн бұрын

@@dwaneanderson8039 I think the light coming out of the small lenses would still scatter.

@dzxtricks

27 күн бұрын

Yes, fresnel that's what we need ​@@dwaneanderson8039

You're the first person I've seen NOT shine it in a city at night, not that I expected you would, but thank you.

Every punk teen with a lifted truck: "Just found me a new set of headlights.

0:37 Every astronomer in the country: "STOP THAT!"

@EpicBunty

13 күн бұрын

Does it really affect them

not to suggest that this technique would break the etendue thing, but in terms of achieving the hottest point from a light source I would think that if you arrange the source -> collimating lens -> focusing lens -> target, would get the most energy of the source onto the smallest point.

@patricklaenen3468

28 күн бұрын

Holy 🐄

@Petriedish02

28 күн бұрын

Not an expert or anything, but I think this runs into the exact same issue. "Collimating lens" is doing a lot of lifting in this and ultimately while it could theoretically perfectly collimate light from a point source, my guess is it would be imperfect on any other point of the light source (i.e. you'd lose some of the light from imperfectly collimating the other LEDs or even other points on the same LED). Then when focusing this on the other end you'd receive this imperfect collimation at the focusing lens and the same issues addressed in the video arise. This setup might be able to reduce how quickly the energy falloff happens as you move further away, but inevitably thermodynamics arrives to spoil the fun.

@SwissPGO

28 күн бұрын

Trust me, you can't... I worked on particle accelerators, x-ray lasers and designed synchrotron beamlines costing multiple million euros: you can't focus such a big amount of leds putting out light in all directions on a spot as small as the source itself. It's different with lasers - I worked with later beams about 30 cm diameter that could be focused on a few micrometer target, but that's because it's a laser where all photons have very parallel rays, but even then, a lot of the electrical energy of to make such lasers work won't arrive on the target. And these were multi-terrawatt lasers that create plama's hotter than the sun.

@wh44

28 күн бұрын

@@SwissPGO "leds putting out light in all directions" - that's the thing, it isn't in all directions: they've already been aligned (collimated) at the LEDs themselves. You can even see it in this video - that the focused circle getting burnt is smaller than the circle of the source - I think all those LEDs shining in the same direction are acting a bit like a smaller circle further away. As a thought experiment to show what I'm talking about: you could give each individual LED its own set of lenses to focus its light on a spot the size of a single LED and it would not violate Conservation of Etendue.

@SwissPGO

27 күн бұрын

Led light is non-coherent, at the production, it is électroluminescence and the light is emitted into all directions: each photon emitted has no clue where the other photons went, an will be reflected and guided by a lens into a main direction, but the light will spread out quickly in a divergent non-coherent beam that is inefficient to focus. A laser is a whole different process of light emission: everything aligns, which makes focusing possible up to the diffraction limit very efficient. It may be that the flashlight in question uses diode lasers (yes, that's also a thing)... but a laser is monochromatic, and to obtain white light, a fluorescence step is typically used which breaks the coherence and increases the divergence, so you end up with the same situation. And... even if each led would be able to produce a perfectly coherent beam, aligning all of them is very difficult, especially since the temperature of the device is not stable. Part of my phd research involved the aligning of multiple laser beams on a target, and this happened using lower powered helper beams and constant measuring and correction to adapt to temperature variations. You can't have that in a flashlight because nobody is willing to pay a million for a flashlight that has the size of a tank.

What an awesome episode! Very informative thank you

1:00 the birds must be thinking its already daytime 😂.

This looks super unsafe... Can't believe he's willing to put his hand that close to the focus

@patricklaenen3468

28 күн бұрын

Holy 🐄

@lumntoob999

28 күн бұрын

He has white skin so it will reflect more light than the darker objects he put in front of it. I can light paper on fire with my flashlights but I don’t think any of my lights will set fire to white computer paper even when I set the paper all the way against the lens, maybe if I left it for a longer time but I don’t want to burn up my leds either. Also if I put my skin (also white) all the way up to the lens I can easily burn myself but it’s safe a few inches away for a short time.

@HyperHrishiHD

28 күн бұрын

​@@lumntoob999 That make sense. So black people would get more easily burned in this scenario.

@empathogen75

28 күн бұрын

I think he’d feel the heat before he got close enough to get badly burned.

@SeanCooney-xe5xe

28 күн бұрын

@@lumntoob999So u finna say dat light be raysis?? Sheeeeiiiiiiiii mayn

one day this company will make a artificial sun.😂

@HYPERMAN__

16 күн бұрын

That's "Styropyro" Job.

Upon seeing the flashlight in the dark... "It costs 400,000 dollars to fire this weapon, for twelve seconds"

You pull this one out when a drunk annoys you in the street in the evening. He'll have an alien abduction story the next day.

4:03 Oh, a paper that gets really hot actually starts burning?!?! I'm as surprised as you! 🤣😆🤣 BTW, love the quote from Arthur Eddington!

@Lreclusa

18 күн бұрын

"It was a pleasure to burn. It was a special pleasure to see things eaten, to see things blackened and changed. With the brass nozzle in his fists, with this great python spitting its venomous kerosene upon the world, the blood pounded in his head, and his hands were the hands of some amazing conductor playing all the symphonies of blazing and burning to bring down the tatters and charcoal ruins of history. With his symbolic helmet numbered 451 on his stolid head, and his eyes all orange flame with the thought of what came next, he flicked the igniter and the house jumped up in a gorging fire that burned the evening sky red and yellow and black. He strode in a swarm of fireflies. He wanted above all, like the old joke, to shove a marshmallow on a stick in the furnace, while the flapping pigeon-winged books died on the porch and lawn of the house. While the books went up in sparkling whirls and blew away on a wind turned dark with burning."

Imagine that thing on a police car on a swivel mount. Talk about getting spotted

@DrDeuteron

28 күн бұрын

or on a ghetto bird.

*Mick Dundee (Paul Hogan),* 1986: "That's not a knife… THAT'S a knife" *James J. Orgill,* 2024: "That's not a flashlight... THAT's a flashlight."

Bro: You have a Lighter? Me: Take's a FlasLight

I love that quote at the end 😂

Yo the rooster was like Am I a kind of joke to you 3:32

Who even needs a stove and bonfire when you got *_The Ultimate Flashlight That Produces the Rays Of DEATH_*

In the voice of Styropyro “Now that’s a cute flashlight”

5:12 but isn’t the LED just a glass cover of the actual light source?

3:40 no impact on your fingers

@thepotatoportal69

7 күн бұрын

I think it's because they weren't directly under the focal point

@3D_Printing

7 күн бұрын

@@thepotatoportal69 good, don't want burnt fingers

Those are the headlights that the other drivers use when I am trying to drive at night

I learned this in my 20’s. To make something hotter than it really is, have about 8 beers.

Egad😱Wonder what the battery life is?