Although the Chernobyl reactor was also cooled by water, the water was essentially only used for cooling, but not slowing down the neutrons. Instead, enormous blocks of graphite surrounded the fuel and were used to slow down the neutrons.

Make a radio with pencil lead and a razor blade . No battery required.

@redwolf7929

Жыл бұрын

Alot of cool old experiments like that ,were promoted when I was a kid.Very educational.

@QuantumMechanic_88

Жыл бұрын

@@redwolf7929 Yep and after reading about "foxhole" radios used in WW1 & WW2, I started making them at 11 years old / 57 years ago. Have a great week.

Steel mills use refractories much stronger and more durable than graphite. Small melting operations often use graphite crucibles to contain molten metals. Also they didn’t mention that clay is an important part of pencil lead. It holds the graphite pieces together in the lead and the clay-graphite composition determines the hardness of the pencil.

Such a rudimentary process as we learn to write at such a young age yet we don't realize the complexity of what we are achieving. Amazing to see such a beautiful process.

So cool to learn about stuff we thought we knew all about 50 yrs ago

When you connect a high-power inverter to a battery, it can create a powerful spark, but touching a penci to the cable and terminals first acts a resistor, slowly powering up capacitors etc in the inverter, so you can then connect it safely. Alternatives include a high-power incandescent bulb (when it goes out, you're safe!), or an actual resistor.

Electron microscopes and subsequently SEM and AFM (atomic force microscopy) have really driven major advances in science as it allows visualization on the atomic level.

Why no mention of graphene?

It really is brighter this time.

lab coats and sweet goggles, awesome

Wow !

Why are there still school buses without proper seat belts installed in this day and age?

Graphite would be good to use for a nuclear reactor core.

Smithsonian, libera os docs desta série completos legendados em português, por favor.

@mrcrazyasian

Жыл бұрын

it has Portuguese

@mtsbr78

Жыл бұрын

@@mrcrazyasian where?

Take a drink every time she says "amazing!"

Electrical conductivity of pencil lead is certainly nothing new. As a young teenager, I used pencil lead as a soldering gun (electricity from a train-set transformer), not having money to buy a real gun. It was a bit tricky, but it worked!.

@flamencoprof

Жыл бұрын

In the early 60s at that age I also used my Triang train set transformer on pencils sharpened at both ends, but in my case it was just for fun. I used to like seeing the smoking wood and the lead getting red-hot. I did grow up to be a responsible telephone exchange technician though.

Hot For Teacher 🎸

What is the blonde woman's name?

@RiddleTime

Жыл бұрын

Not worthit

@flamencoprof

Жыл бұрын

Cherry Healey. I recognised her from a TV show called 10 Years Younger in 10 Days and looked it up.

It was also used in nuclear cores the most dangerous part of the Chernobyl disaster was the graphite.

Is a company listed for stocks of this product yet?

Wow amazing, wow just amazing, wow amazing, I am not a pretty scientist or ever an ordinary scientist just a builder ,however somehow I seemed to know all this without the aid of a lab and a electro microscope, did I mention that was amazing ?😳

Electroboom did it better.

👎🏻 And how does it get into the Hokey Pokey which is in your bodies now if you got the poke.

wow . that was booring

Science grant money well spent,🙄

This was a waste of time and money.

@Nyx773

Жыл бұрын

Adult me: If you don't have anything respectful to say, don't say anything at all Teenage me: I bet your parents said the same thing when you were born

Seems that pencils have the rubber eraser on the end to stop the flow of electricity! 🤣🤣 Joking... Graphite is pretty amazing stuff indeed! 👍 M 🦘🏏😎

Wow, this was lazy.