Some of the facts in this video may go by quickly, if you’re a slower reader, pausing the video at times to read the facts is recommended. Part 2 continues from the Moon. If you spot any spelling errors, please comment, and I’ll right it with an annotation. Please delight in the video! Don’t forget to comment, rate, subscribe!!
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Solar energy primarily only requires the power of the sun. The sun is the center of our solar system, and some consider it as the largest star in the world. It is nearly perfectly spherical in shape, has a diameter of about 1,392,000 km, (as compared with the Earth which has a diameter of 12 756km) and a mass of about 2×1030 kilograms, 330,000 times that of Earth. The outer layer of the sun is called Photospheres and appears mottled because of the turbulent eruption of energy on its surface.
The core of the sun is about 25% of its total diameter, 347,500 km, and it is considered the hottest part of the sun, with a temperature of 15,000,000° C or 27,000,000° F! The core also the area of the sun where solar energy takes place, which is considered to be a nuclear reaction. This nuclear reaction makes nuclei to fuse together to then produce alpha particles and the helium nucleus. This mass is expelled to become energy, and carried to the sun’s surface through the process of convection.
Convection is the movement of molecules through liquids and gas, but not through solids because no significant diffusion can take place in solid forms. Convection is the major mode whereby heat and mass are able to be transferred, and this heat produced by the sun is ultimately used by us in the production of electricity via photovoltaic cells in solar panels.
is one of the newest ways that we have of producing electricity on a large scale, and it is also one of the most preferred alternatives because it is user friendly for many reasons. One primarily reason is that it is natural and produces less pollution as compared to our common fossil fuel derived sources of electricity. Also it is much cheaper, is renewable, and always readily available. The only cost is the initial buy and installation, but if you add up the expenses from your monthly electricity bill you will come to realize that you can save much more than you expected; depending on the KWh size of the solar panel system you install it will pay for itself within 4-7 years, and keep producing clean solar energy for you for at least 20.
Solar panels are now widely use all over the world, and as it has becomes a more and more desirable alternative energy source a lot of companies are dedicating extensive research into how to improve the manufacture and construction. Every year solar power is becoming more convenient, more productive & cost effective to use, and more readily available to average consumers.
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{ 11 comments… read them below or add one }
@SazzleT400 no worries… kewl vid though!
@1983noddy Yeah it’s a typo, I meant smallest but for some reason I typed largest! When I have time I’ll fix it with an annotation, thankx xxx
The earth is roughly 4,600,000,000,000 years old, Algal stromatolites which are a bit like algae have been dated as old as 3,800,000,000,000 years old. That means the earth is 4.6 billion years old and life was already evolving 3.8 billion years ago on the warm cooling planet.
Our sun is a small star not necessarily one of the smallest stars in the known universe especially when talking about volume, certainly far from the largest though.
Actually the sun is one of the smallest stars in the known universe… not one of the largest.
@SazzleT400
The first replicating single cells are believed to have formed 3.5-4 billion years ago. It took 2-3 billion years for these cells to evolve into what we currently recognize as life.
@rdkitchens …it’s the first time I have ever heard of it. They have fossilised evidence of their remains, thank you for bringing that to my attention. I don’t have time now, but when I do I will fix that error with an annotation. x
@rdkitchens When I did my research, I didn’t just believe information from one website I took it from many just to double check my facts. As I’m searching now for answers, it’s very frustrating as I have websites saying life has been on Earth for 2 billion years, others say 150-200 million years, people who believe in the bible say 5,000 years (which I personally don’t believe for one second). But after researching the Cambrian Explosion, I believe you are correct….
You claim that life has only existed on earth for 150-200 million years. This is incorrect. The Cambrian Explosion (the initial appearance of most of the major phyla currently on the planet) occurred more than 530 million years ago. Also, the earth is 4.5 billion years old.
Thx Sooooooooooo Much I Needed help with homework and this helped me ALOT!
This video is O.K. ! More tech in video: “Wonderful energy-Tesla Wireless” by HorizonDelta
Thank you very much for this video, i needed it for a report. I hope others people will enjoy it too :]