0tyranny0poverty
  • Member for 4 years, 9 months
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What's wrong with transporting a refrigerator on its side?
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25 votes

After referring to some good online resources such this, I know why we shouldn't transport it laying down. Compressor is filled with oil which is critical to its operation. In the normal upright ...

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Send sensor signals to WiFi network
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3 votes

I would keep the sensors passive as transponders to a house wide rfid radar scanner. Changes in the sensor would change the code on the rfid of the sensor, thus reflecting back a different ...

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What is the most efficient way to convert a fuel into electrical energy?
2 votes

We need to go directly from chemical energy to electrical energy. Electrical energy can be attained by accelerating electrically charged particles through a coil or magnetic field, which causes ...

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How to determine how much energy recovered from regenerative braking
1 votes

An important energy storage method that is being given very little consideration is gas compression. The kinetic energy of the vehicle can drive an air pump or compressor that would compress air into ...

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Is it possible to "boost" a WiFi signal using an aluminum soda can?
1 votes

It is too small a surface area to be an effective microwave reflector. The shape is wrong too, it must be parabolic with respect to the transmitting fractal antenna of the router. Yours is ...

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Are rocket engines practical for commercial aircraft?
1 votes

A rocket engine is impractical for 2 reasons As other answers have stated, you must carry the oxidizer on board. More importantly though, a rocket accelerates much faster, burns much more fuel, ...

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Increasing speed and efficiency of ac induction motor
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1 votes

You really can't change the frequency of alternating current. This is fixed at 60 hertz (cycles/sec) for USA and 50 hertz most everywhere else. by laminating the permanent magnets you reduce losses ...

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How to calculate the energy needed to ionize air at a specific temperature?
1 votes

As Herold has stated Nitrogen has a rather high ionization potential. However the voltage needed to ionize air depends on alot of other factors: density altitude humidity mean temperature presence ...

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Why don't refrigerators have parts outdoors?
0 votes

I agree that it doesn't make sense for the refrigerator to heat up an air-conditioned space in the summer. Also, if the temperature is below freezing outside, why not just locate the fridge in an ...

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Will more electricity be generated by using a lens to focus sunlight onto solar cells?
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A new way to convert solar power has been discovered at the University of Michigan. Please check out : https://phys.org/news/2011-04-solar-power-cells-hidden-magnetic.html It uses the magnetic ...

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Can solar panels absorb heat for energy?
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Both thermo-electric and photo-electric cells work on the same physical principles. A photon is absorbed by an electron in the outermost orbital which causes ionization and voltage potential. The ...

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Can a wireless signal of sufficiently high energy damage a wireless transceiver?
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of course. Ronald Reagan's "Star Wars" missile defense is designed to damage the electronic navigation systems on board these missiles. The electromagnetic pulse from a nuclear explosion will ...

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What are the disadvantages of concentrated solar thermal power?
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The advantages outweigh the disadvantages, so the we need to consolidate the political will to make the necessary investments. The ideal locations in sunny arid areas would be next to the seas for ...

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Will more electricity be generated by using a lens to focus sunlight onto solar cells?
0 votes

The greater the photon density at the frequency of interest, the more the power as the photons excite the semiconductor's electrons to higher energy orbitals to the band-gap and beyond. That being ...

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