Dan I love your videos, there's none that compare to what you're doing. You and your wife have been a HUGE inspiration in my shop and i hope that you never stop what you're doing. Thank you!

@briangingras5886

Жыл бұрын

tell me Dan would aluminum foil spray paint it with dark high temperature spray paint used for barbecue grills work it shouldn't Burn off that can hold the 2000ﾟ

Wrap food in regular aluminum foil inside black absorber…. also lost voice a bit the day of the voiceover…. but back to normal...

@tienthanh7605

4 жыл бұрын

show me how to make a metal parabolic pan

@tienthanh7605

4 жыл бұрын

show me how to make a metal parabolic pan

@patkonelectric

4 жыл бұрын

Sounds liking you have a cold Dan. 🤒

@kwinzman

4 жыл бұрын

unfortunately using Fahrenheit instead of blessed Celsius.

@hootinouts

4 жыл бұрын

bDan, I've Been watching your videos for years and thoroughly enjoy them. You and the wife are great folks. Wishing you both blessings and health this Easter.

So glad to see you back!! Love the new videos!

Excellent my friend! you have inspired me alot, and a few years ago I made something similar but I use a spaguetti glass jar, and inside I put a 500ml beer can painted with Rustoleum black heat paint, and concentrate the sun with an old DirectTV ( satellital tv ) foiled with mylar fabric, works fantastic and you can boil water in less than a half hour, I follow you a few years since, and I like all that you made! keep inspiring us!

been watching your vids for years and notice your voice changed a lot hope your health is ok thanks take care

@GREENPOWERSCIENCE

4 жыл бұрын

I shot the voiceover outside on camera 9 times with a good mic and between construction, neighborhood pets, airplanes, interstate traffic and trucks up and down the road, I did the voiceover at 1 AM in my SUV. So, talked out and voice was shot. Health is great and thank you for asking. BTW our area is about 65 dBA Decibel Level​. Audio has always been a pain in the …… even when professional TV shows were at our location.

@696969640

4 жыл бұрын

@@GREENPOWERSCIENCE ok was worried about you good to here your good

@hootinouts

4 жыл бұрын

I notice that too. Hope that you are in good health Dan; both you and the wife.

@tomd.7325

3 жыл бұрын

@@GREENPOWERSCIENCE thank God I was also concerned I used to watch your videos all the time I got to get back to it I loved all your parabolic mirrors I actually made a huge parabolic mirror out of a 13 ft fiberglass satellite dish it was awesome my plan was to heat water in an old air tank and power a motorcycle engine with steam but as it goes you know how life is never got around to the generator part but it still was a lot of fun

This channel is underrated

I supplement the heat for my home with a cinefoil heater. On a sunny day as was today over half of my heat is supplied by my cinefoil heater. The high today was 41 degrees Fahrenheit, 5` Celsius and a low of 20 degrees Fahrenheit, -6` Celsius.

@user-xy7bt8qg8k

2 жыл бұрын

🔴 What Is Islam? ⚠️ 🔴 Islam is not just another religion. 🔵 It is the same message preached by Moses, Jesus and Abraham.

Subbed a few months back, just wanted to say thanks for sharing your knowledge. It's helped me out with different projects 👍👍👍

Learn something new every day, thank you about the foil.

Dude, kudos to you for years of interesting videos.

I love cooking with my "4" evacuated tube cooker, but it is too big for camping. This would be great. I'm putting it on my wish list. Now if I can modify a lunchbox so when open it becomes a parabolic reflector I can plan of some decent hot meals no fires needed!

Gotta try that next beach or camping trip! THX, Dan!

not sure why youtube stopped letting me know you posted but great to see you back on :) and watching in binge mode now lol

Nice job Dan, thanks for sharing!

not bad. been looking to make a small solar kettle, glad to buy yours, been watching your channel for a long time.

wow this is awesome, imagine with just a bigger one, you can bake cookies!

random upvote because we miss you

Celsius temperature included would be good for your international audience :)

@GREENPOWERSCIENCE

4 жыл бұрын

I agree, I will on the next video… Thank you

@thebeststooge

4 жыл бұрын

I don't agree as they need to learn our archaic system more than we do their fancy maths.

@edieboudreau9637

4 жыл бұрын

35mmraw good idea

@Serahpin

4 жыл бұрын

32F=0C, 212F=100C Fahrenheit is the superior scale for humans. 100F is really hot, 100C is deadly. 0F is damn cold, 0C just annoyingly cold. 50F is sweater weather, 50C is really hot.

@johndii2194

4 жыл бұрын

Google it like I have to, to get to Fahrenheit.

Dan where have you gone ?! Come back !

This is very neat. Definitely going to do this. Appreciate the content yoy place on your channel. Have use used the old broken hard drives to make a directional mirror ???

Ty Dan 😃😃

It's a very interesting video on how to make a simple oven of sorts, but the main problem I see is how to regulate the temperature and the timing of the item you are cooking

simply great

I will need those mirrors and reflectors, because my goal is to be able to do this with -20 outside ;-). But I wonder: currently I live in a country that has no direct sunlight. There are always clouds, and light mostly comes from all over the place. For solar panels I went for panels that have a higher efficiency on diffused light. So polycrystalline instead of monocrystalline. It's not even directed at the 13:00 top sun performance. Because for those few days of the year it's performing top, I had to give up efficiency for the other days of the year, and especially in the morning (mine are directed at a 10 degree slope south east). But yeah, focusing diffused light. I need to search for that.

If I wanted a simple flat metal plate to get hot would just spray painting it matte black on top work?

Awesome

Hey Dan where you been? Missing you guys! Been a long time

"Hello, I'm your host, Dan Rojas.". I always chuckle when you say that. Not sure why.

Talk about fast-food! =)

This'd be pretty handy for hitchhikers. I wonder if it'd still work well in cold snowy climates.

@justinw1765

4 жыл бұрын

It would probably need some help in the latter case. Take some kind of lightweight but durable foam (like black EVA), and make an inverted cone shape. Then glue aluminized mylar, or Solar reflecting film, on the inside. Make a vacuum insulated glass top for it. If not vaccum insulated, then at least double wall with some silicone in between the two pieces (leave a very small gap between the silicone seal between the panes for pressure to escape--otherwise it might burst). The combination of all that insulation and that concentrated Solar energy will cook it even in cold temps and less direct light.

@justinw1765

4 жыл бұрын

Also, I recently read about some testing they did on Steven Jones's funnel design. Apparently less mirror reflective coating i.e. more dull, matte reflective stuff like aluminium foil, actually did better than mirrored reflective coating like aluminized mylar. They think it was because in this design, you don't want to concentrate the Solar energy to a small point, but rather disperse it over a larger area. Either way, consistently, the more dull and matte reflective coatings outperformed the mirrored type in cooking times and temps. (This was a bit of a surprise to me). You can find thinnish, flexible EVA foam with a dull, reflective coating already on it, in rolls for pretty reasonable. It's sold for floor underlayment insulation/cushioning. If going a route like that, since the material lacks stiffness, I would take some water based Minwax Polycrylic, put a thin coating and one layer of thin, lightweight, cheap fiberglass (like 1 oz/yd2 stuff) to the back to stiffen it up some and make it overall more durable and tough. Unlike epoxy (which is much more expensive, and more toxic to work with), the Minwax Polycrylic, while it (and the fiber glass combined), will stiff it up, it will still allow some flex and give. It adheres pretty well to EVA foam--as I've already done some tests. However, one might want to skip this route and keep it fully flexible, in order to be able to roll it up more easily. If you have some strong and small clips, you can clip it into place, or contact cement glue some velcro/hook and loop to it for that purpose.

Is posible cook food raising the water temperature with vacuum pumps?

That cinefoil - is it safe to be close to food? Thanks for your work and sharing, Dan!

Could you immerse a giant 'insulating vacuumised double wall' container into seawater/sand/soil to, eg, boil water and release steam via a vertical pipe into a condensation chamber that would release water from condensed seawater steam into a giant water reservoir? If so, could the later release of the accumulated water in the reservoir be used to generate electricity via the driving of turbines by the falling water?

Hey Dan!

Could you fill the vacuum between the glass layers with CO2/methane to stop infra-red escaping from the glass cylinder without stopping visible light entering it and then being absorbed to produce a heating effect? Alternatively, could you 'coat' the glass walls of the cylinder with an 'infra-red shield to contain more infra-red inside the tube without detrimentally impeding the entry of visible light into the cylinder in the first place? Couldn't this accelerate the heating of water inside the tube?

Can i make a vaccume tube solar cooker in that way?

My friend.. You are an awesome teacher.. I feel like you are in my neighborhood.. Are you Hillsborough county?

@GREENPOWERSCIENCE

4 жыл бұрын

Yes I am and thank you so much Kurt. Right next to i75 interchange.

@kurttanner5855

4 жыл бұрын

@@GREENPOWERSCIENCE great. I thought so.. I'm from forest hills.. 4th generation Florida native . I was supposed to go to chamberlain, but we moved to Brandon in 81... Class of 84.. Good to see some quality home grown talent out here..

The Sun's Tea drinking glass shown is not vacuum insulated. It's just double walled.

Aluminum foil covering the entire floor under the carpet (eg, in the home) would 'reflect heat' into the room/s; covering the walls with, eg, pictures/paintings/posters with aluminum foil attached to the back of each of these wall coverings would further enhance this 'heat insulating effect', as might including more black furnishings/ornamentation/décor inside the room/s which would absorb more visible light from sunlight, eg, during the period before/during sunset and convert it to infra-red which would radiate into the room/s, thereby increasing the room temperature. Additionally, could, eg, covering the roof/outer walls of a house with a sturdy, weatherproof, retractable black 'roller blind-style' shield during winter also enhance the insulation of the home by absorbing visible sunlight during winter and converting it into warming infra-red which would then heat the walls/roof of the house for an added 'insulating effect'? Could covering the inner surfaces of a kitchen refrigerator/freezer not also enhance domestic energy efficiency - specifically relating to kitchen appliances - in the same way?

Where is the link of materials used?

What that K thermocouples cost? Cute pupper! Subbed

@aryanprivilege9651

3 жыл бұрын

I want a cheap PTFE probe, two channels accurate?

Why you are not uploading more often :'(

Position two heat conduction insulating, double-glazed windows together in close proximity - but still separate - with a light absorbtive, black material layer and water between the two windows to solar heat water occupying space between two double-glazed windows instead of heating water inside a 'vacuumised, double outer wall tube/cylinder/s'; substitute the double glazing with a potentially vast surface area 'sandwich' of two adjacent but separate 'twin layers of bubble wrap' with a vacuum between the two layers of heat conduction insulating, air-filled plastic covering over (like a table cloth/pool cover/tennis courts cover) a potentially quite vast, shallow 'pool' of water in contact with a heat conduction insulating, underlying layer/surface (eg, a layer of horizontally-positioned, double glazed windows/a vast layer of concrete containing vacuumised 'holes'/'gaps', eg, by pouring concrete onto a vast layer of plastic covering over an area of wooden beams to create a set concrete layer on top of the beams and raised above the ground towards a downwards heat conduction effect) containing a light-absorbtive, black layer of material to solar heat water (not in direct contact with the bubble wrap plastic covering to avert any damage to the plastic should it not be sufficiently heat-resistant to withstand boiling water temperature) under a vast double layer surface covering made of two layers of bubble wrap with little/almost no air/gas between them.

Cool, no i mean 🔥 hot

@GREENPOWERSCIENCE Why are you not posting videos anymore?

what happened bro your body shrinked a lot, i hope all is well!!!

@GREENPOWERSCIENCE

4 жыл бұрын

Cross training, I was 30 pounds overweight… needed to drop it so I could get below a 6 minute mile for a 5K

Why not incorporate some graphene or even a copper array and get some atmospheric energy harvested while cooking a meal?

You ok you haven’t uploaded in a while

What happened to his voice? I usted watch him many years ago and he didn't used sound like that.

@pinkponyofprey1965

4 жыл бұрын

flu?

@GREENPOWERSCIENCE

4 жыл бұрын

I talked all day fighting noise and did the voiceover at 1 am in my car…. Should have waited a day or so.

@edieboudreau9637

4 жыл бұрын

Lex y mimi R. Too much talking before recording this voiceover

@zilym

4 жыл бұрын

Maybe he got divorced? Didn't a see a wedding ring in the video. I remember back when he and his wife used to upload a new GreenPowerScience video almost every day. Then there was a long lull and now we only see occassional short videos with just him...

@lexymimir.2887

4 жыл бұрын

@@zilym true

Hey GPScience, I would love to discuss an idea, I came up with & feel you’re the best person to ask. I live in Lutz, Florida & I feel like you are close to me? Do you have a good email address for contacting you. I don’t want to say what I’ve discovered, here in this open format but it’s a great invention. Hope to hear from you friend ✌🏽

The number game is not worth the wait...

@GREENPOWERSCIENCE

4 жыл бұрын

???

@tubularguynine

4 жыл бұрын

Learn patience or prepare to be eternally P-O'ed.

@OverUnity7734

4 жыл бұрын

@@GREENPOWERSCIENCE I think he is referring to how youtube does the beginning of videos that are set to "premiering now" . KZread puts a 2 min (or something ) count down clock at start for the premier . The count down is not on the video after the premier .

i don´t think, this is food safe

Hey need new video