Create your own Solar System Live Experiment with Huw James Head Squeeze
Even at the dinner table you can still do a little bit of science. You can show everyone you're having dinner with how the solar system as formed. All you need is a little bit of water and empty it on to a plate, hopefully after you've eaten everything on the plate. Give it a bit of a swirl, you get it swirling around the outside, and you get all that water swirling round and round. And inside this water you can make the solar system. Drop a little bit of pepper on to it, anywhere.
On to it, and you'll see that it's rotating. This then will be all of our rocky material for our planets. You can help it along by giving it another bit of a swirl. And you'll see that they'll all start to accrete into the middle in an accretion process where they all start to go in towards the centre. And that's what happened in our solar system. Very early on all the harder material and the heavy material, all the iron and all the metals all come in towards the centre and that's why we get our rocky planets and our.
Earth as well. As the sun started to produce energy, it started to produce light a fusion process started to take place. And when the sun first ignited about five billion years ago it sent out a shockwave it sent all the gas past all the terrestrial planets towards where Jupiter and Saturn is, and if you want to show that as well, let's get a little bit of washing detergent, and put it right in the centre and you'll get the shockwave effect again with all the pepper. So you have the terrestrial planets in the middle and all the terrestrial planets going.
How Solar Energy Is Converted To Electricity Through Solar Panels
Sunlight is made up of tiny packets of energy, called photons. Every minute, enough of this energy reaches the earth to meet the world's energy demand for a whole year. Photovoltaic panels consists of many solar cells, these are materials made like silicon, one of the most common elements on earth. The individual cell is designed with a positive and a negative layer to create an electric field, just like in the battery. As photons are absorb in the cell, their energy causes electrons to come free. The electrons move towards the bottom of the cell, and exit through the connecting wire. This flow of.
Power Your Entire Home Without Wires!
This episode of DNews is proudly brought to you by Subaru. BY TESLA WE'VE GOT IT! Wireless electricity might be coming to a home near you. y'know. Someday. Greetings programs, Trace here for DNews. In 1897, Nikola Tesla asexual genius and inventor extraordinaire wanted to QUOTE turn the whole world into a giant wireless dynamo. He was awarded a patent in 1907 for wireless electricity but then the Great War began and the whole thing was lost to history. Now, over a century later, researchers at MIT created wireless power transmission which.
Could realize his dream! Sort of. While Tesla was trying to power cities, this transmits wireless power around your house! Your phone, car, television, laptop, game console, controllers, remotes, toaster and every lightbulb in every frickin' lamp could all be powered by magnetic resonators. The Faraday Law of Induction describes how an electromagnet creates a magnetic field. When an electrified coil of wire is wrapped around a metal rod, the metal magnetizes. Similarly, when you pass a magnet THROUGH an unpowered coil of wire, the magnet creates electricity. Physics is awesome.
Researchers at MIT found a way to turn simple physics into a wireless way to transmit electricity using a similar technology to WiFi. By plugging in a resonator to the alternating current outlet in your wall, the device creates a magnetic oscillation. The magnetic field of the resonator is large enough to mingle with nearby coils installed in the walls and floors of your house and ultimately into every device and BOOM wireless power. One magnetic coil influences another and another all over the house. It's like the barking chain in.
101 Dalmatians! MIT spun off the technology into a funny named company called WiTricity. The system can already power televisions, cell phones and keep their special AA batteries fully charged all at the same time! To be honest, induction charging has been around for a while, as has wireless power transmission. Radio waves are wireless power, the pads you can buy to charge your cell phone, mouse or game controllers use wireless power, but this is a bit different. The ones we have now use nearfield induction and this blows it into a whole new proportion.
The problem with any of these systems, is the efficiency. Magnetic fields have to be relatively closeby to pick up other magnetic fields. The MIT researchers were able to power one 60 watt light bulb from 2 meters away but it was only 45 efficient. So they put in 133 watts to power a 60 watt bulb. Not awesome though according to the researchers, this system is 1 million times more efficient than the ones already on the market. and the CEO of WiTricity says it's 1,000 times more efficient than a battery!.
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