Wireless Electricity (Part 2)

Wireless Electricity (Part 2) | Earth Science

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Do laser beams hold the key to long distance wireless power? Jem finds out. Watch Part 1 here: • Wireless Electricity |...
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Пікірлер: 70

@12mjk21 8 жыл бұрын

uh oh, orbital ion strikes is in the near future.

@Dunsay 8 жыл бұрын

Ions, no - this is EM. But! I do see the joke.

@gl1500ctv 8 жыл бұрын

Wow... Impressive stuff!

@Onebadterran 8 жыл бұрын

I am going to be honest, I had completely forgotten about the first part by the time this came out

@SyntheticFuture 8 жыл бұрын

15% efficiency though... that is pretty poor... and easy to block. But we might get there some day :)

@toxigames 8 жыл бұрын

if you had 15% of shares in apple you would not be poor!

@SyntheticFuture 8 жыл бұрын

toxigames while that is true I don't see how that is in any way related...

@SyntheticFuture 8 жыл бұрын

blabla62871 A vacuum or glas fiber would yield a lot better results, but well it's not wireless =x I do think that the yield could be improved over time though.

@MarinusMakesStuff 8 жыл бұрын

That beard of his is just screaming 'Hard worker'

@TheBwins219 5 жыл бұрын

Hardest worker I know!

@zachcrawford5 8 жыл бұрын

I have a really efficient way of beaming wireless solar power from space to earth. It is far more efficient than any solar panel, much lighter, much cheaper and much simpler. It's called a mirror.

@Wmom18 8 жыл бұрын

This has the power to change everything! 😘

@merthyr1831 8 жыл бұрын

It's just a laser beam at one end and a solar panel at the other, won't change anything and we'll still use wires: He has to line this up PERFECTLY to get the maximum power; imagine not being able to move your phone from a single spot to charge it, or if you realise someone sat in from of the beam while you were watching tv and your phone didn't charge at all? On the upside it's very useful for researching solar panel technology that may help us yield more energy from the sun.

@killiandavis4685 8 жыл бұрын

At the very end when it is talking about beaming power from space to Earth, what happens if it is cloudy?

@samkhodr9975 6 жыл бұрын

Good point. Touchè.

@eshan309 8 жыл бұрын

but they travel in a straight line only....would need high towers to send and receive at each end.

@AdamsOlympia 8 жыл бұрын

I wonder if that diffused laser beam would burn someone after prolonged exposure ..kinda like a sunburn or something..

@helojoe92 8 жыл бұрын

since it's only Infrared light my guess would be that it doesn't do anything as long as your body can take the temperature. If it gets too hot you'll get a burn, but much more like a burn from a flame or from boiling water ...

@k.almohammadii 8 жыл бұрын

@greensteve9307 8 жыл бұрын

Be good for farms?

@MarcinVoyager 8 жыл бұрын

Useless in the misty, foggy day.

@merthyr1831 8 жыл бұрын

Useless on any day. Wires and solar panels are much more useful without a middle man.

@sterlingodeaghaidh5086 8 жыл бұрын

so basically this will be a case if sifi comming to real life. sounds good but sounds like it would be like alternative fuels right now. getting better but not at the level of the traditional method almost.

@Wifibee 8 жыл бұрын

Microwave transmitters exist already and have a better efficiency.

@MrRishik123 8 жыл бұрын

Microwaves get absorbed by water a lot more than infrared.

@Wifibee 8 жыл бұрын

Mr Rishi The Cookie Sure, but if it rains, droplets will scatter your beam of infrared and you'll lose some too.

@MrRishik123 7 жыл бұрын

Wifi Bee Some ones gotta do the math i guess and see which loses more energy through water droplets.

@zdrux 8 жыл бұрын

This would be great for outposts and remote areas that have no power. Think of rescue missions, and arctic stations.

@samkhodr9975 6 жыл бұрын

He only demostrated 1/4 of a mile and it only has a 10-20% efficiency, so i don't think it would be.

@kefsound 6 жыл бұрын

Not at all.

@DrakeFellwing 8 жыл бұрын

Why do I feel like I've seen this guy before?

@shez666 8 жыл бұрын

you probably have, he's been on a few BBC shows and other Brit Lab videos

@DrakeFellwing 8 жыл бұрын

No, this exact skit has been done before o.o

@shez666 8 жыл бұрын

oh, Brit Lab often seems to just use clips from Bang goes the Theory which is probably where this is from

@MauroTamm 8 жыл бұрын

That's one radio. The power we would need to transfer is enough to power a city. The power of a laser like that and heat generated by just colliding dust particles... Not to mention the curvature of earth stopping long distance transfers. Satellites are in orbit and won't stay in one place for long. Wireless energy on large scale is worthless - localized power is needed (portable or small and powerful power sources and batteries), decentralized power systems.

@msms47 8 жыл бұрын

wireless is not useless its the futuer ! ofcruse its bad now ! u seen early tvs ? u gonaa compare them to 3rd 4k todays tvs ? its just need imporvment or 1 missing techonlage step to unlock the wireless power

@MrC0MPUT3R 8 жыл бұрын

+msms47 People said the same thing about flying cars

@msms47 8 жыл бұрын

MrC0MPUT3R and ? thats prove nothing flying cars still to come

@MrC0MPUT3R 8 жыл бұрын

msms47 Don't hold your breath lol

@msms47 8 жыл бұрын

MrC0MPUT3R never said i would

@johnxym8394 8 жыл бұрын

Is it true that nicola tesla has invented wireless electricity long ago?

@arsipaani 8 жыл бұрын

yep.. see first part

@kurtilein3 8 жыл бұрын

he claimed he did, but his idea cannot work.

@msms47 8 жыл бұрын

it did work just not good enogh to have any use of it ! so yes he invented but it just did not work good

@kurtilein3 8 жыл бұрын

msms47 It did not work over any longer distances, because tesla was unaware about how magnetic fields get weaker over distance in his setup, or he was intentionally deceiving people.

@msms47 8 жыл бұрын

kurtilein3 hate on the guy who acutly trying to make the world better place ! go somewhere els kid lol

@herbjergens6350 8 жыл бұрын

THE BEGINNING OF LAZER GUNS, just wait and see!!

@TheBluMeeny 8 жыл бұрын

Already thing, check out the US navy's LaWS.

@herbjergens6350 8 жыл бұрын

Murr ahhh thanks.

@TheBluMeeny 8 жыл бұрын

Herb Jergens Pretty lackluster response considering your original post :P

@herbjergens6350 8 жыл бұрын

Murr sorry meant to say....."wow gollie gee Mr. A big right thank's for your insightful post to little ole' me!! I say, boy oh boy was I ever wrong. Im so glad you have set me straight fella, now I know, and knowing is half the battle!!!! Is that a more lusterous response?? Lol

@TheBluMeeny 8 жыл бұрын

Herb Jergens I would say so, yes :P

@HunterRodrigez 8 жыл бұрын

so the satalite laser system will only work on clear days ? i mean getting through rain is one thing... getting through a rain cloud is slightly harder

@horseradish843 8 жыл бұрын

No it isnt

@G8tr1522 8 жыл бұрын

yeah, I wish they clarified that.

@BrunoWeiers 8 жыл бұрын

The primordial od a Dyson sphere seems to have arrived.

@eyesofaboy 8 жыл бұрын

He maybe discovered the wireless heater

@emmettturner9452 8 жыл бұрын

Uh, that satellite idea at the end sounds ill-conceived. Collect light in space and convert it to electricity only to convert the electricity back to light and start the whole process over on the ground? Why not just collect the light from the ground in the first place? I get that certain wavelengths transmit more efficiently through the atmosphere, but the efficiency gains have to be enormous to justify and they simply aren't. Beaming power *to* a satellite makes way more sense. We could have sats that stay on the dark side without RTGs or other power sources or beam supplemental power when needed or when solar simply isn't enough. If electrical propulsion ever becomes a reality (EM Drive) then it will be even more important (no reason to carry power source/fuel).

@biker451 8 жыл бұрын

Based on this video it sure looks like this is a dead end technology, at least for now. May I quote? "We're probably, really, converting maybe 10, 15% of it into useful energy to drive the LED or the radio." So, a solar panel on a satellite takes in the energy of the sun and puts out only about 20% in electricity at the current efficiency level, then it is funneled through this unit. At the other end it puts out only "10, 15%" of that and there is enough energy to power one LED bulb using this demonstation unit. I don't think this is ready for prime time.

@TheDanMcBending 8 жыл бұрын

Basically you can have a massive array in space, where's there's a lot of space, and by focusing it into a tight beam you reduce the energy loss you'd normally see from the light passing through the atmosphere whilst far more spread out.

@emmettturner9452 8 жыл бұрын

+TheDanMcBending It still makes more sense to have the massive array on the ground in the first place.

@grachogracho5918 8 жыл бұрын

And!!! If some people are starting the to kiss proceder in an park, it could be that an boy in his part of best to kiss performer been hot'ter than the object of desire.....well well well............. This is great but not for every situation.....