Can You Start a Fire With Moonlight and Giant Lens?

I show why you can't use moonlight to start a fire

#shorts

[keokawasaki]

Me to moon: I'm sorry dude, didn't know you were chill like that

[itsrasalhague]

Chuck Norris can start a fire only with reading glasses on a cloudy night.

[someweeb]

now I want to see boiling water with moonlight

[amnnet]

So that's why vampire is safe and didn't burnt when night come

[JohnySeen]

The moon doesn't emit light, it reflects it. That physics principle is spot on.

[sany_]

Explaining science in between the experiments is the best thing I like about this channel 😄

[abbster]

Him: I wonder if this will start a fire?
Also him: Shines it at his hand

[captain_commenter]

Love how you casually say you have a giant Fresnel lens

[Bienpai]

So that's why monsters are safe and didn't burnt when night come

[SecondQuantisation]

I studied thermodynamics at university and I've never heard of "Conservation of Etendue"! Thanks for the new concept!

[jdrailfan]

If the limit is a 100 degrees C, then I would love to see you boil some water with that mirror.

[GenericalFishTycoon]

Still pretty cool you got the moonlight to focus that bright.

[alfepalfe]

"100°C (373°k for non metric people) is not hot enough to start a fire."

Unstable chemicals: am I a joke to you?

[Teh_Random_Canadian]

I love these shorts. Very interesting answers to questions I never thought of

[Pazaluz]

I read this last week in a book about Leonardo Da Vinci regarding the metal ball on top of the Cathedral in Florence:

"The construction of the ball, which was made of stone that was clad with eight sheets of copper and then gilded, also kindled in Leonardo a fascination with optics and the geometry of light rays. There were no welding torches at the time, so the triangular sheets of copper had to be soldered together using concave mirrors, about three feet wide, that would concentrate sunlight into a point of intense heat. An understanding of geometry was needed to calculate the precise angle of the rays and grind the curve of the mirrors accordingly."

[MaxOakland]

This is really interesting and I love that even though you knew the rule you actually tried it out AND explained why it is that way

[BrHck]

As Richard Feynman said: While other colleagues watched the nuclear tests through dark glasses and filters, I used an ordinary mirror with which the bomb was seen in full color, because it is not the light that burns the retina, but the UV radiation that the mirror glass does not reflect

[neoqueto]

People say YouTube shorts suck and I've just learned so much in 1 minute. I never knew this, they should teach it in schools.

[pixeldragon]

I love how science has progressed to the point that we can answer all these questions just for the hell of it. A few hundred years ago, only the brightest minds on earth could even begin to understand what we can all learn for fun.

[ThisRandomUsername]

You could probably use the light to run a solar cell charging a capacitor to generate a spark during discharge.