The future is huge for tiny technology. Miniaturization is, perhaps ironically, a huge deal. I mean, without it we wouldn't have had the personal computer revolution and we wouldn't have this world we live in now, where we have smartphones and tablets and other devices just as powerful as a computer, that can fit in the palm of your hand. But even these gadgets are gargantuan compared to nanotechnology! See, a nanometer is just one billionth of a meter. And that's kind of hard to imagine, so let me put it to you this way.
Your typical sheet of paper is about one hundred thousand nanometers thick. And at this scale, individual elements are so small you can't even see them with a light microscope. Now as we learn more about how materials behave on the nanoscale, we have more potential applications to use that knowledge practically. I'm talking about how nanotech could help solar panel technology. And fortunately, at a recent meeting of the American Association for the Advancement of Science, or AAAS, they had a panel on just this very subject. Now if you know anything about solar panels you know they have some drawbacks. For example,.
Efficiency they max out at around twenty percent in the field under ideal conditions. They're also rigid, so you can't just put them anywhere you like. And they tend to be expensive because manufacturing them is complicated. But scientists hope that nanotechnology can help address all three of these challenges. Now with efficiency they're looking to nature specifically, moth eyes. You see, moths have these little tiny structures in their eyes that help reflect light back into the eye and it does two things it lets them see better in the dark, and it cuts down.
On reflection so predators can't spot them as easily. With solar panels it could actually make them more efficient by reflecting more of the sun's light into the panel so you lose less in reflection. And when we're talking about flexibility, well nanomaterials are really, really small, and there is the potential to create solar panels that are just a few sheets of molecules thick. They could be as flexible as a sheet of paper, and with that kind of flexibility you could put those pretty much anywhere you wanted to.
And as for price, well, that's the big one. And in the short term I don't think it's going to turn around. But scientists are cautiously optimistic that nanotechnology will let us use new processes, like printing solar panels directly onto a substrate using just a specialized printer. That would actually be less complicated and expensive than traditional manufacturing methods. Now at that meeting of the AAAS, a Dr. Wolfgang Porod gave a talk about Nanoantenna Thermocouples for Energy Harvesting. Which I admit sounds like technobabble straight out of a Star Trek episode.
But it's actually fairly simple once you break it down. A nanoantenna is just an antenna on the nanoscale. These resonate with longwave infrared radiation. And a thermocouple Well that's a component of circuitry that generates a voltage when one part of the thermocouple is a different temperature than other part. So you pair these two together and the antenna generates heat and the thermocouple generates voltage. It could actually help increase the efficiency of solar panels. Now like I said, nanotechnology is a young science and it has lots of different applications.
Across many disciplines. And I'm really excited how such a small technology could have such a huge impact. That leads me to this week's question. When I say the word nanotechnology what do you imagine What does that word mean to you Let us know in the comments below. Then, do me a nanosized favor and share this tutorial with your friends. If you enjoyed it make sure you hit the 'like' button and subscribe to our channel. Then check out these tutorials over here. There's some huge surprises in them.
Solar Energy in Indian Wells, California by Suntrek Industries
Indian Wells Solar Energy from Suntrek Industries has demonstrated since 1991 they are the leader in solar energy systems technology. For residential solar electricity, Solar pool heating, Solar water heaters and Commercial Solar Power. Solar brings value to a Community that is unsurpassed. Today we have a proven reliable technology to power our daily lives with the sun. Just imagine how different your world will be living in a Solar Home powered by the sun with little reliance on utility power. Since 1991 Suntrek Industries has been a leader in solar energy manufacturing and system design.
Solar Power in India DuPont Photovoltaics A Brighter Life
00003500,00013000 gtgt DORJEY STANZIN We live in the most remote and underdeveloped part of Ladakh. In summer we are in paradise. 00016500,00018000 gtgt DORJEY STANZIN In the winter we are in hell. 00026000,00040000 gtgt DORJEY STANZIN We used to rely on diesel generators for electricity. It was costly and dangerous to bring the diesel here, so we often had no electricity for months. 00043000,00052000 gtgt DORJEY STANZIN We believe that the Sun is everything. God has given us the gift of sun, so why not use it 00054000,00058000 gtgt VIVEK CHATURVEDI Moser Baer has a product.
That captures sun and provides energy to the residents there. 00100000,00104000 gtgt VIVEK CHATURVEDI DuPont materials are extremely important as a part of this product 00107500,00120000 gtgt RAJARAM PAI When we combine DuPont Tedlar and DuPont Solamet paste we are making sure that the efficiencies are improved and it ensures that the panel is protected against the harsh climate of Durbuk and ultra violet radiation. 00122500,00135500 gtgt VIVEK CHATURVEDI Having grown up in a small town myself, I understand how it is to live without power. Children need to study, mothers need to cook. What better way to capture sun and provide energy across the globe.
Noticias RCN Indigenous Female Elders Travel to India to Bring Solar Energy to their Communities
Two indigenous female elders belonging to an Amazonian indigenous community, have traveled to India to learn how to make solar panels. The women who earned a scholarship, will assist their communities to finally have electricity. Happy and and with many expectations. That's how Maria Encarnacin and Ercilia feel about their journey to India. I'm very happy, because I'll learn what I've not learned throughout my life. I'm happy and at the same time nervous. The two elders belonging to the Uitoto indigenous people from the Amazon were chosen by their community to have this privilege.
I wanted to take this course because in my community we don't have electricity. We don't have the means or ways to get these solar panels. The scholarships were awarded through a partnership between a Colombian NGO ACT, the Government of India, and Barefoot College. We're working with these women not only to empower them, but because they're elders abuelas and elders always have the commitment to return to their community. The course lasts six months and the women will share this experience with other indigenous women from around the globe.
Progress in Solar Energy DuPont Drives Progress
We believe that the sun is everything. Ladakh is one of the most remote, inhabited places on earth. High in the Himalayas, they once relied entirely on diesel generators for electricity. It was costly and dangerous be bring diesel here. For a safe and brighter future, solar energy provider Moser Baer installed 500 kilowatts of solar panels using DuPont photovoltaic materials. These panels are now powering 350 houses at a lower cost than running diesel generators. Which is electrifying in more ways than one. That's progress. God has given us the gift of sun. So why not use it.
Turning Salt water into Drinking water using Solar power
According to the Securing Water for Food agency, between 2000 and 2050 water demand is expected to increase 55 percent globally, meaning the number of people affected by water scarcity will continue to grow. By 2025, twothirds of the world's population could be living in severe water stress conditions. Around the world, there is more salty groundwater than fresh, drinkable groundwater. For example, 60 percent of India is underlain by salty water and much of that area is not served by an electric grid that could run conventional reverseosmosis desalination plants.
To find solution for this drinking water issue in developing countries, USAID the U.S. Agency for International Development had run a global competion for Desal prize. The idea for the competition was to create a system that could remove salt from water and meet three criteria it had to be costeffective, environmentally sustainable, and energy efficient. The winners of the $140,000 first prize were a group from MIT and Jain Irrigation Systems. The group came up with a method that uses solar panels to charge a bank of batteries. The batteries then power a system that removes salt from the water through electrodialysis,.
That means that dissolved salt particles, which have a slight electric charge, are drawn out of the water when a small electrical current is applied. Using the sun instead of fossil fuels to power a desalination plant isn't a totally new idea. Larger solar desalination plants are being seriously investigated in areas where water is becoming a scarce resource, including Chile and California.But the current technology is expensive. The MIT team's this new desalination technology electrodialysis is comparatively less expensive. Both electrodialysis and reverse osmosis require the use of membranes, but the membranes in.
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