Fresnel Lens - SOLAR DEATH RAY
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- čas přidán 6. 09. 2024
- ►WHAT IS THIS
This solar death ray uses only the sun to focus hundreds of thousands of watts onto a small area using a special lens invented nearly 100 years ago called a Fresnel Lens.
►TIMESTAMPS
0:32 - Power Density Equation
2:00 - Fresnel Lens
3:00 - Watch the World Burn
►MATERIALS
Fresnel Lens - 4x3ft from a projection TV
- Smaller ones are for sale everywhere
►EXTERNAL LINKS
Different Fresnel Lenses (Very Cool) - • Different Fresnel Lens...
►CREDITS
Narrator: Dayton Aardema - EE
Editor: Dayton Aardema
Music: Cody Aardema - Blueprint Theme
Ethan Meixsell - Granite
Special Thanks: Dr. Tim Eisele (Lens owner/operator)
#Blueprint
Hello everybody!
I thought I would try something a little different with this video. I'm trying to get better at video editing and all that special effects jazz.
Amazing that this community has doubled in size since my last upload. I am *super* honored that you all have come to enjoy my work. I'll keep trying to improve my quality.
Love the new style. Spicy memes sprinkled about and all.
Love your content you should have a million subs, I will be sending my contacts to your channel.
2:54 "I just want to watch the world burn." : An Arsonist's Famous -Last- First Words
your channel is great. its gonna be big and i can be proud to have been on the leading edge of something so awesome. cant remember how many subs you had when I jumped on but I do know I was here for the 1k milestone so it was before that. keep it up man.
Thanks, Buddy
You should also mention that...no matter how big your lens/mirror is - the focused light will never(!) be hotter than the surface of the Sun. That’s an optical rule called „Conservation of Etendue”. Without it, you could breake thermodynamics laws and make a perpetum mobile. So you also can never use the Moon’s light to start a fire that way, since Moon’s surface is about ~120 deg.C. max.
en.m.wikipedia.org/wiki/Etendue
what-if.xkcd.com/145/
This is pretty interesting, I think I might look into this
This rule is also super counterintuitive! I used to think that with big enough mirror you can concentrate as much energy in one point as you want. Turns out...that is not how our universe works! :D The Odeillo solar furnace is the world's largest solar furnace. It is 54 metres (177 ft) high and 48 metres (157 ft) wide, with a power of 1 megawat. One could think that if a small mirror like you had shown in the video can heat up stuff to thousand degrees, this gigantic mirror should create a spot millions of degrees hot. Turns out - it's "only" 3,500 °C (so not bigger than Suns surface of ~5500 °C). I find this fact fascinating.
This doesn't realy make sense since I've been able to light stuff on fire with the light from a 100w LED, and the LED never go above 50°C
Love the content! But imagine this: You setup a heliostat power plant using lenses like this and collect the heat to then power Stirling engines which are setup to create an electrical charge that could then be harnessed. The system could store excess heat within sand batteries and used to have a constant supply of hot water. Food for thought
I just picked up an old projection TV and intend to build this. There's a giant mirror inside too. Do you think I can boost the output by incorporating the mirror?
I tried using an A4 size lens, one summertime in Sydney, Australia. A piece of dry timber burst into flames after about 3 seconds. A small piece of lead melted.
It's winter now in Australia, [July 2019]. I noticed that a 1.25 litre soda bottle filled with water was sort of focusing the sunlight. I was able to melt a hole in the black plastic lid of a coffee cup. We get some pretty fierce wildfires every summer. A discarded bottle of water might start a fire now and then.
Could you do it but make it “cold”
I struggle to imagine a product that such a huge Fresnel would come from... i mean smaller ones are commonplace, you'll find them in OHP projectors. Or has someone custom machined one this huge? How does one even do that? Must the tool come in at an angle? How many hours or days would it take?
This Fresnel Lens comes from a projection TV. Not to many of those around anymore with LCD displays taking over the market.
Siana Gearz nice
Siana Gearz imagine is more useful for getting point
Cicadas at the end of the video lol
Nice vid dude ! Keep it up. Im verry impressed by the quality of your vids... AND THATS A LOT OF DAMAGE !!! :)
I am your new subscriber. You're a cool dude and your wisdom coupled with your confidence and character will lead to a continued life of magic. My best wishes to you Sir.
Just orded a a4 sized magnifying sheet. Hope it will work
gooooood work man
keep it going
I have a much smaller lens and it will melt rocks, asphalt, create flames on wood in about 4 to 5 seconds these things are awesome! Remember to wear proper eye protection as looking at this concentration of the sun can damage your eyes and no sunglasses are not going to be good enough!
I find them cool also! Too bad that there is no eye protection in the world that can help. The only way to block all concentrated sunlight is to see nothing at all. I was merely worried about reflections. 😎
I use a welding hood when I use mine welding creates the same spectrum as looking at the sun without eye protection using a welding stops the concentrated Ray's of the sun from damaging your eyes. I do a lot of welding at my job.
Cool stuff! 😊 take care! Peace ✌️ from Welland Ontario Canada 🇨🇦
Where can I get this size of fresnel lens
They were used in projection TVs, If you do a search online for "Projection TV Fresnel Lens", you'll be overwhelmed with options :)
@@BlueprintScience ok thanks
put your tv back together ffs.
I think he upgraded to a Plasma TV now.
This is better than television
Wow
❤️❤️💗💗
At :40 you said there were 1300 Joules being added every second. It would actually be 1300 Joules added every hour.
1W = 1 J/s
Thus, 1300 W/m2 = 1300 J/(m2 * s)
... I think
A watt is 1 joules per second, you fucking idiot so 1300W is 1300 joules per second.
Names Dayton... disappointed your from Michigan instead of Dayton Ohio...
😢