Flying to the edge of space using only solar power
ฝัง
- เผยแพร่เมื่อ 29 พ.ย. 2024
- Raphaël Domjan is an eco explorer and for his latest project, SolarStratos, he has built an electric plane powered by solar panels. The hope is to reach an altitude of 80,000 feet, setting a record for being the first manned solar plane to reach the stratosphere.
The aim of SolarStratos is to show what can be achieved through solar energy with the hope that the aviation industry takes notice and steers away from fossil fuel to more sustainable sources of power. They also plan to use the plane for scientific purposes - with zero-emissions, the plane can take sensitive atmospheric measurements without contaminating the samples with its own exhaust.
Footage courtesy of SolarStratos / Raphaël Domjan
Read more:
www.solarstrat...
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Perhaps the next version would be able to incorporate more solar cells along the fuselage sides of the plane so that the plane can produce power from rising and setting sun periods. Every square foot counts. Also, if the engine can be mounted in the rear, it would reduce the turbulence going through the entire body of the plane and increase laminar flow which will contribute to better lift and efficient power usage. You just have to use taller landing gears that will let you tilt for take-off and land more safely without damaging the rotors.
the blades can retract forward to solve the problem
what's a square foot👀
@@zenbot8048 12x12'' / 4 burgers in a 2by2 layout 🤷♂️
@@TheCraigy83 what's 12" man wtf are these measurements 😧😧 man these americans are crazy they measure stuff with burgers wtf
They have the boundary layer to contend with the flexibility of the solar cells I think.
I think a ducted prop (rather then ducted fan) is more efficient than just a prop due to the differences in tip vortex shaping. Ducted propellers work on a much larger volume of air at a lower speed than ducted fans which is how they beat them on efficiency at low speeds. They beat normal props by nearly eliminating the tip vortex issue.
Hmm I’m curious can you explain the difference 😊
Interesting thought, though how efficient are ducted propellers really? To further solidify the question, could the ducted propellers deliver enough efficiency to produce the required thrust at an attitude, where there is barely any medium (air) remaining?
Nevertheless, would there not be modern technologies available to create//simulate as low atmospheric pressure as at the height of 80000 ft. and test different (specialized) propellers?
Curious!
Just to senselessly add more weight? I think a Contra rotating prop would be better.
@@getehrwolf6111maybe,but the votice’s at the end of the blades is what causes certain inefficiencies too.
A plasma cutter puts a high voltage, high Amp current through a stream of compressed air. A critically dense plasma is opaque to light and other radiation. If you focused the light from a parabolic trough mirror onto a stream of critically dense plasma, you could heat up the plasma to even more extreme high temperatures and capture much of the solar energy. A hundred square meters of solar cells costs maybe $10,000. A hundred square meters of mirrored mylar over a flexible plastic sheet might cost a small fraction. A wing tends to naturally bend up into the shape of parabola. With some aerodynamic struts to hold the exact shape, the same area could collect five tines more solar thermal than photovoltaic energy. Focused through a strip of glass covering a long slit in a cylinder, a solar ram jet could be quite simple. Solar panels also tend to be heavy. A silghtly tapered cylinder would be like a long rocket engine and possibly a lot more efficient with more of the heat working against the walls of the engine. A blast of compressed air down the middle if the cylinder that is turned into plasma at the front by a high voltage arc receives the solar energy. The walls of the cylinder would heat up from the heat of the plasma and provide more heat to the mass of air moving through the cylinder. The plasma could be extended the length of the cylinder by having more electrodes at intervals and injecting more compressed air into towards the center at a slight angle to the cylinder. But the heat from the solar might maintain the plasma at the center for the entire length. Just heading towards the sun would focus the sunlight on the plasma. If the cylinder is a little longer than the focal area, the angle of the sun to the horizon will not be as much of a factor. If the solar concentration is 1000:1, the plasma might be easily maintained for the length of the cylinder once a plasma is created at the front end by a high voltage arc. A powerful electric motor comoressor at the front and a turbine/generator at the exhaust end might allow it to use hydrogen or other jet fuel to get off the ground and up to ram speed. That would eliminate the need for a drive shaft down the middle where the plasma is.
A hundred square meters of mirrored, swept wings might collect near 100,000 watts of solar energy compared to only 20,000 watts of electricity from solar panels. If the electricity from solar panels was used to create an electric arc to drive a jet engine, it would be maybe one-fourth as powerful as the concentrated solar thermal collector.
With swept wings and a ram jet engine, the plane might easily get into space as it goes faster and higher in the thinner and thinner air. A little bit of fuel to maneuver in space and return to the atmosphere combined with the large wingspan to brake the plane while providing a lot of lift and distributing the heat over a much larger area might eliminate the need for a heat shield except on the most forward parts. Using subsonic air to cool hollow, forward facing parts is another option. Or interior liquid cooling.
Once the plane is in space where there is no air resistance, it could deploy huge mylar surfaces to make a funnel to collect the very sparse hydrogen available in space. Accelerated to near the speed of light by high voltage plates along the length of the cylinder and confined by pulsed high magnetic field coils, the plane might travel through space at near the speed of light after a few years of solar energy from a thousand square kilometer mylar parabolic dish. Or maybe not. But it would be going pretty fast.
You missed one big glaring problem ignoring all others and that is Plasma will eat through any material so your engine isn't gonna last that long especially considering you can't make it with a heavy dense metal that'll slowly get sintered rather than quickly oblate.
@asandax6
The temperature of burning jet fuel is too high for the surrounding materials. Comoressed air is injected around the combustion area to protect the surrounding materials.
The commenter starts the comment with the word "you". Accusations and insults tend to start with "you".
The possibilities seemed interesting compared to the potential difficulties. But it seems that certain people are more interested in making things difficult.
umm i dont think you can reach higher than 18000ft becoz :
-first the higher altitude have the thiner air density, the propeller will have a huge drop on efficiency unstill stalling.
-second the heat will very hard to get rip from your plane in stratosphere and you have a keep running propeller and the solar panels is also receiving the heat.
Anyway I hope you can find the solutions the solve those problem.
By the way there maybe solution i found on youtube.
th-cam.com/video/N3bJnKmeNJY/w-d-xo.html
Is not necessarily that high. Just enough to see the curvature of Earth.
Heat is fixed by the drop in temperature at altitude. -60 degrees C at 40,000 feet is common. I know that there is an inversion of sorts at highter altitudes (or at least a drop in the rate of the temp going down) but heat will not be an issue.
Perlan Project Inc. is a not-for-profit aeronautical exploration and atmospheric science research organization that utilizes sailplanes (gliders) designed to fly at extremely high altitudes .
The 2018 season was again based at El Calafate. The project acquired a Grob G 520 Egrett turboprop aircraft for use as a tow plane. This enabled Perlan II to be towed to 44,000 ft (13,411 m) This seems to be the highest glider tow, as records are not registered.
On 26 August 2018 Jim Payne and Morgan Sandercock reached an altitude of 18,492 m (60,669 ft). This was followed by 19,439 m (63,776 ft) with Jim Payne and Miguel Iturmendi on 28 August 2018. On 2 September 2018, Jim Payne and Tim Gardner reached an altitude of 22,646 m (74,298 ft), surpassing the 73,737 ft (22,475 m) attained by Jerry Hoyt on 17 April 1989 in a Lockheed U-2: the highest manned heavier than air subsonic flight. The Perlan 2 could fly to 90,000 ft (27,000 m) if conditions allow, higher than the manned level flight altitude record of the SR-71 Blackbird at 85,069 ft (25,929 m).Previous records were measured with pressure altitude; high altitude soaring records now require GPS data.
Wikipedia.
you also get slightly more power efficiency with solar panels the higher you climb due to the lack of particals scattering the photons away from your craft. meaning the motor can receive more power.
dont... ask me more than this though. i dont know the maths or anything. im just saying anything is possible.
Muchas felicidades por tu proyecto . :)
Solar powered airships would be a better option. There is always solar power above the clouds during the day.
Solar energy is converted into potential energy as a store of power for night-time flying.
I wish we can get sponsors of this type of project in African countries
😂😂😂😂😂
we wuz pilots n sheeit
That is amazing ,I've dreamed of just such a flying capability,and to be in those flite levels in a solar powered glider type craft ,an everydays man, powered u-2 , adventure flying, and now ,here you go,,on just such a craft as I had dreamed and now the," spontaneous, same idea," has triggered here and there around the globe,as is seen from time to time ,in other kinds of fields and persuites,(sp), the adventurous minds of dreamers ,applied! Great thing for you and your team !
What’s the stall speed and the flutter speed of this aircraft at 80,000 ft?
How much of CO2 and other waste was produced to make this plane since it was made with resins and carbon fiber made from oil? How do you recycle or reuse the parts after the planes life expectancy is over?
You dont, but you also dont do that with any other aircraft
@@nilsanderson8800 Why not?
@@fijapopovic5335 because you need properties like being sturdy but also flexible and most importantly, lightweight, you often only get that with composites which are non recyclable or not economically recyclable.
@@nilsanderson8800 You have recycling facilities for decommissioned aircraft (at least in my country) to recover as much material as possible. Plus the way of manufacturing, production of raw materials and their location can increase or decrease your pollutant production overall.
That's why when people are saying "My product is good for the environment because it doesn't use oil" but their whole product is made of composite or other non recyclable materials using traditional methods looks like an irony.
Use the proper material and methods for your application, maybe your product uses less material than the competition, but don't say that it is "good for the planet", It would be more correct if it was "less pollutant then the competition, because it doesn't use oil during its use". Otherwise it's just green-washing.
@@fijapopovic5335 but it is still built the same way airplanes that operate on kerosine. Of course you can scrap some part of the plane, but the rest will just be left to rust in the Nevada desert.
The Lilium Jet combines the convenience of vertical take-off capability with the speed of a jet for intercity regional missions. It features 30 battery-electric motors within the main wings and the flaps of the canards, which are the only moving exterior parts.
Would it be better to use bifacial modules and can skin be translucent?
Interesting, earth albedo is 30% in intensity of direct sunlight and has almost the same spectrum as direct sunlight, a little less in the UV, but that is usually not a very large portion of what a solar cell uses, so the contribution from the underside would be significant.
@@Tore_Lund Especially for dawn and dusk operation. Could use serpentine turns to continuously collect light.
That‘s cool 👍
Now make it as a submarine you could make the wings foldable that folds inside the submarine would be cool to have a flying submarine. That can also drive on water with hydrofoils. Or a water plan.
With a room for a bed to sleep in.
@@suetaylor1127 Yes like a tiny house inside and a greenhouse so you can take plants with you and make food inside with you. If we could build everyone a flying submarine you can live in you could choose to live in the sky or underwater at the bottom of the ocean to try to survive nuclear war I wish I could build a van that could be a submarine.
@@hauntedcaptainphoenix5363 Don’t forget about outer space! Why not? If it can go under water it can to outer space. NASHA Proved that, or did they?
And a man cave with air hokey and all the 1980s video game we had to pay a quarter to play!
Man you and I should start a company building these craft. We could raise billions and go public! When they demand to see our product will just hire the CGI people in Hollywood. Then we could pay our investors with money get from selling coke cane! Great business model! Don’t steal my 100 % original idea. 🤣
@@hauntedcaptainphoenix5363I thought that I came up with some crazy stuff when my ADHD starts ADHD-ing. But this right here, this talk about flying subs and van subs to survive basically WW3, you might want to get checked out buddy because you should like your out…….
Of this world amazing. Genius Idea, you should consider patenting that idea. I can’t wait to the time comes and I can get my Plane/Van/Sub.
If I’m not understanding wrong, this acft can only fly in VMC?
Wish you successful projects in your aim to reduce use of fossil fuels & stop climate change
I guess nobody in the comments brought up the issue with the thin wings and lack of air pressure at that altitude. How do you get that high with so little atmosphere?
Exactly my thought, propellor aircraft have a low service ceiling due to the loss of lift and propellor performance due to the reduced density. Larger wings will increase the lift but the propellor will fail to produce enough force to keep the aircraft at a high enough speed to avoid a stall. Maybe the propellor can turn at supersonic speeds but that would add more problems.
@@teenflon the problem is more that combustion engines dont work well at that altitude, the propeller itself is not realy that much of a problem. The wings are high aspect, meaning minimal drag with not much lift, but long wingspan
@@randomguyinanglider Propellers don't work at high altitudes.
@@dipladonic they do. Combustion engines don't.
@@randomguyinangliderI get it, but as as you can see in this video, at high altitude, propellors aren’t practical.
Beautiful project 👍
This is cool, but not realy an option for civil aviation. This is a very small plane for one person, with large wing span. Wouldn't work for a big plane for many people, the surface to volume and mass just doesn't make it possible.
The Earth’s core is 6,700 km deep. The deepest humans have drilled is 12 km. The temperature of the inner core is "estimated" (we don't know) to be between 3,000 and 5,000 Kelvin (4,940 to 8,540 degrees Fahrenheit). The high temperature comes from three main sources. There is residual heat left from the Earth's formation, and heat is generated by gravitational and magnetic forces from the sun and moon as they tug and pull on the inner core. (The Sun heats the Earth's CORE. Sunlight is a small part of the Sun's energy) finally, the radioactive decay of elements deep within the Earth also produces heat. The Sun's total energy is NOT constant. Humans have only begun to study our star with radio, computers and satellites. Solar winds from coronal mass ejections can even change Earth's orbit. Open your mind and think. CO2 is an insignificant factor an infinite number of variables. Why don't scientists actually know the Earth's core / mantle temperature and how much it fluctuates? It's only because of deep drilling corporations that scientists have accurate measurements of crust temperature. The mantle and core temps are pure speculation. Just like climate forecasts.
When Co2 is insignificant explain how venus should be pretty much like earth relying on the mass and distance from the sun, only that venus releases all the co2 from the core which is abaut as much co2 as the earth has stored in fossil fuels and bio mass. Jes shure we cant be 100% certain how the suns power output will be in 50 jears but by basic logic and the fact that the sun is billions of jears old we can assume it will be the same, while we would fight wars over the last bit of oil we have lying around .
The Lilium Jet is a prototype German electric vertical take-off and landing (eVTOL) electrically powered airplane designed by Lilium GmbH.
Excellent job 👏
God bless you!!
Is the propellor operational at that height??? The air is very thin at that height
Mostly likely it's completely useless. You'd probably have to use waves to climb to such altitudes.
@@marcogiorgini8566 если скорость будет большой , можно лететь даже на винте.
The inspector Clouseau accent is very remarkable. Ze cleemat chinge 😊
Haha. Its called french. You better respect it before you get arrested for bathing
its called a french accent
It's so dark there (in space) ))))
I am not an expert but is solar power totally and 100% clean? What about the production of solar panels? What about the disposal of solar panels? You also have lithium batteries to consider as well as other components which are harmful to the environment .. inverters and such. Their production and disposal is not exactly environmentally friendly. The cleanest energy in the world is for you to stop exploring the world and to settle down in your little nation wherever it is and ride a horse to get from A to B etc etc ..
Is there an update?
idn
An update was delivered in secondary school... some folks missed it and went ahead with idea of flying tiny propellers at 80kft!
Выдайте премию оператору, который снимал планер в стратосфере😅
I believe their solar cell technology could transform the Lilium Jet into a small spacecraft capable of launching vertically from the ground and reaching the stratosphere.
engine?
Solar really makes sense for households... Just put these glass panels on your roof and you can produce the vast majority of your energy needs cleanly and reliably for 30 years...
HI
Congratulations 🎉
Can't the Sunseeker Duo already do this?
Did they reach the Stratosphere?
*yet
thanks! inspiring!
I wonder how it would perform fully loaded
what if we build the same glider but with a jet engine, the engine itself will be specially upgraded to work in the stratosphere, and also on board the glider you can place a small tank with liquid oxygen that will mix with air from the environment and feed into the engine
combustion engines and high altitude dont pair well, also you have to fly fast to make a jet efficient. this thing is not fast
"the engine itself will be specially upgraded to work in the stratosphere" yeah, you see, this little small tiny upgrade is just the holy grail of aviation engineering.
It is the very end of 2023. How high did you get?
Contamination???? Take the measurements from the front of the plane
Advanced UAV is online
I love the idea of solar plane but Boy solar boat is a bad idea compared to sailboat!
“It seems quite dark”
Is she trucking restarted?
And what environmental challenge/problem does it solve? What measurement can be taken with this that can't be taken by a weather balloon? This is green washing plain and simple.
It is okay as is accent will offset ze differance
Fossil fuel not infinite.
It's a demonstrator aircraft showing what we can do with solar energy and promoting green alternatives to fossil fuels
@davew1234 it's fun and good for the imagination (thing of desire) but they ain't solvin a world problem by it, a demonstrator and all it took to set it up only polluted more of the earth, with their day out and popularity.. the scientists are working and already know the potential of green power, shit they already got solar panels to 62% atleast and the deep state already maxed the r&d to God knows what %tage. They even got the diamond ball thing with the radioactive thing inside which is true progress and evolution of the voyagers power module thing. If they wna make the world green and beautiful, even have muscle cars for the ppl passionate for it they could, they could make the world a pre-heaven but that only happened once in history with the fish fellow. So become a conspiracy theorist/truther with no misleading half truths or shut the fck up about it
I wonder what the carbon footprint is to build and dispose of that plane but cool project nonetheless.
Super
Is that an UAV?
That was amazing, but 20 or 30 years are you NASA? We need to push it on now not in a few decades.
Blud is not spying on Russia
stratosphere flight with a propeller??? how??
Shuh! Dont ruin it! Guys are living the dream at taxpayers cost so dont interrupt!
@@ryteulopki523 🤣🤣👌🏻👌🏻
Usually the problem with altitude is that combustion doesn't happen very well there. But I wonder how happy a solar powered propeller would be so high.
@@ryteulopki523 ..what ? It's a private company, how is it at the taxpayers cost ?? Do you even pay taxes in Switzerland ??
why is this an add
хз
Yeah i wonder too
اكتظ
جىالبو. ممتوة
I heard Lithium Batteries are even worse than fossil fuel. You can say thats a debate. But I don't think lithium batteries are good for the Planet either. Gliding without engines is more adventurous & 0% pollution to the environment.
People think that carbon free begins when the vehicle is ready for use/operation. This is not correct.. who thinks like that.
yeah, but do you know what carbon footprint does manufacturing of solar pannels have? its ridic-ulus to suggest that they are "green"... it takes a lot of fosil fuel to make them
When you able to go this high with solar power, when go to space only with solar power?
You can also sail a ship with only wind 💀
4:58 *That's the most stupid thing i've ever heard!*
Their is one more problem going high it is low air density
You know that solar panels are made with the "fossil energy", right?
Я не понял, а они получается все таки загрязняют воздух?
@@ВасяЗакорюкин-ф4п Нет. Просто чтобы изготовить солнечные панели нужно потратить кучу энергии(добыча редких минералов, транспортировка, изготовление панелей, снова транспортировка и т.д.) И эта энергия берется из ископаемых источников. Так что эти солнечные панели это просто усложненный способ использования ископаемой энергии
@@aycsfvmk1289 Правльно и согласен. Хотя в отличие от яблочников (iphone) которые в комплект зарядку не ложат (очевидно что те построены на энергию таки угольных заводов) солнечные панели со временем хоть сглаживают острые углы
For now
@@aycsfvmk1289 All this extraction and transportation don't need to use fossil energy. They only do because there is not eletric alternatives.
What would it take to extend this to a more practical application, one that transports 350 passengers and 15 crew across an ocean? Much like Solar Impulse a single occupant can go far BUT a single occupant makes the Airplane a rich mans toy without much practical application
It’s just in testing tho
@@build_itnow have you ever heard of the square cube law? It'd be a hiderance to any commercial airplane trying to run on solar energy
Eletric aviation is still on prototypes.
The sun goes down the stars come out. Nope
The sun goes does the planes come down. Yep
ТитииииииттооЯог
Ки
Ддтжз9ь
I don't think you would try to fly at night with this plane but ok.
I would love to fly up to 80,000 feet! What a beautiful view you’d see!
Donald Trump is not against renewable energy. Just like anyone with common sense.
But we need a transition of maybe 50 years. it cannot be done in our lifetime.
Круто!
177 просмотров и при этом, это реклама, лул)
Лол
We not playing dayz
Would i join to your team
Cool but where is the money coming from?
Follow the money = found the truth 😂
NOT from Big Oil, lol 😂
the taxpayers
@@thatcreatenoob dam
I feel like this is not from the US?
How come you showing the curvature ,since you haven't been up there yet ?
D slujba ďela 0apa ddelaroma
Re
It is representation videos for what it would be like once they are able to hit is altitude. Which I have no idea how they plan on doing since you don't usually associate propellers with this kind of altitude.
บินสูงขนาดนั้นเลยหราครับ
Hey guys, Michael from Vsauce here
Russian subtitles?
Imagine if it starts raining
Above the clouds rain is very rare
We should turn to renewable energy 100% soon to save our planet
damn, now I want this thing instead of a Stemme xD
If this plane could transform solar energy into electric thrust it could eventually leave Earth's orbit without the need of rockets at some point.
no, because electric jet engines have very, very little thrust, the thrust of modern liquid rocket engines is 10-800 kN, while modern electric rocket engines provide a thrust of only 0.1-1 N. Yes, in terms of specific impulse, electric rocket engines beat liquid rocket engines, but to enter orbit, we need not efficiency but thrust, a lot of thrust, which electric rocket engines simply cannot provide.
Ok now this is some next level crap.... good job !
We are going to show how we can do things without using fossil fuel, in plane made from petroleum products and rare toxic earth minerals mined using giant gas guzzling equipment.
Фар
11l111lll1
It is impossible to accurately predict the future using data from the past because nothing stays the same, but if you’re trying to predict the future climate of the entire Earth 100 years from now it sure would be nice to have data showing temperature, speed, barometric pressure, and direction of the jet streams for the last 100,000 years or so. Unfortunately, humans only discovered the jet streams back in 1883 and accurate measurements of the jet streams only go back to the 1950’s using primitive weather balloons. Jet stream data prior to 1883 is lost in the winds of time forever. We now have maybe 50 years of quality satellite data of the jet streams. It is impossible to accurately model the climate with so little data. However, climate scientists could build a time machine to go back and accurately measure the jet streams for the last million years, but until that happens the climate models will always suck.
it is. Antarctic ice. Maybe thats why climate change deniers are always so keen on destroying Antarctica
what curve? that's cgi
I was thinking Where's the real footage? 😅
It's obviously cgi, the project is very far from reaching the stratosphere, those are only representations, but from there you would be there to see the curvature.
Lot of "engineers" in here
How can I buy this airplane ? I want to travel around the world !
Climate change has been part of this planet for billions of years, that been said all technologies are valuable and can be improved to better our lives
Even If you don't care about climate changes which you should, there is still the problem that fossil fuel is not an infinite resourse and will probably in not more than a century. So we better have alternatives.
@@DanielSilva-gc4xz fossil fuels are not causing climate change but a thing called precession of the equinox, and the orbit around the sun going from an almost circular orbit to a more pronounce elliptical orbit.
@@davmac6148 this is a slow regular movement of 26 thousands years a cicle. Mind showing me the papers where you read that it is the cause for the recent climate changes?
Send this design to Ukraine. They could use it to great effect for long duration surveillance flights.
Солнечные батареи тупиковый путь в развитии. И то действо, которое мы все наблюдаем в очередной раз, не даёт нам в этом сомневаться.
это утопия. в стратосфере нет достаточной плотности воздуха для опоры крыльев и тяги винта. там надо использовать плазменный двигатель. используя энергию электричества. небольшой двигатель сможет разогнать до больших скоростей это лёгкий планер.
combustion engines dont lose efficiency during high altitude flight, so the air is sufficiently dense
@@randomguyinanglider это абсурд. двигатели внутреннего сгорания НЕ СМОГУТ РАБОТАТЬ БЕЗ ДОСТАТОЧНОГО КОЛИЧЕСТВА ВОЗДУХА. и ПРИНЦИПИАЛЬНО не могут разогнать летательный аппарат до тех скоростей, чтоб было достаточно воздуха для карбюратора и смеси бензина с воздухом. В СТРАТОСФЕРЕ.
именно поэтому люди перешли на РЕАКТИВНЫЕ ДВИГАТЕЛИ. они позволяют летать на очень больших высотах. но и они не могут работать почти что в вакууме. у них тоже есть потолок высоты.
именно поэтому нужен плазменный двигатель. прямоточный. но, на таких скоростях, этот самолётик развалится мгновенно !
Does he know petroleum does not come from fossils ?
Where ion engine
Many of the raw materials for renewables come from Russia. Did you know?
I was waiting with great excitement for the batteries to catch fire.
Well this is solar so.
I'd like to see that plane do that at night.😂
its not meant to fly at night
It would be like any glider. From the 80 thousand feet that they somehow want to achieve you would be able to glide a good couple hundred miles.
So will they finally do that? XD
k
Prohibited Technology 🌐
Well, that escalated quickly.
Solar panels are far from being efficient. Even the better technology can not produce 20% (some technologies claim up to 50%) electrick power from the energy falls on the panels. So this is lower from the total amount of energy needed for transportation. Large aircrafts to lift just the pilot.
3 dimentional solar planes are apparently a thing now.
Came here for the solar powered aircraft but got lectured by a hypocrite. How much carbon was produced collectively bringing this aircraft to fruition?
Kareeb 50 saal lag jayenge
Fossils do nor make fuel
Hate To Say It! But You Are Wrong On Fossil Fuels Solar And Win Are No Way Near The The Energy Of Fossil Fuels! Plants Use Corbin Dioxide To Make OX2 And Carbon Based Food And Lumber!!! So It's My Opinion!!!
Even If you don't care about climate changes which you should, there is still the problem that fossil fuel is not an infinite resourse and will probably in not more than a century. So we better have alternatives.
Getting rich by slapping a climate change label on it should be criminal
Solar energy is NOT CLEAN.. WHAT A ABOUT MINING FOR MATERIALS FOR BATTERIES?? DO MORE RESEARCH FOLKS!! PLEASE
Ligma
But it looks cool. Thats it...
No one cares they just have the co2 religion
@Smiley-y2tnowadays 0,005% of the energy is from coal…
and mining carbon it makes not harm but to local environment, maybe you meant when used as source of energy, and then YES, you are right about that coal is worst (while using it as source of energy) than solar that is 100% clean in the solar harvest.
👍🏼
ok