Tim McKnew

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@near--zero 3 ай бұрын

what frequency was the transmitted signal? nice video!

@deanrhodenizer938 Жыл бұрын

Thank you. Did not get a lot of views of likes considering it is useful information. Where did the missing energy go? if cooking watts available 1250, cooking watts absorbed 614, difference 636. Was it simply not absorbed by the water and used elsewhere? Or was it not actually produced since it had no place to be absorbed?

@leifkristiantungodden1423 Жыл бұрын

Does the spheres have equal mass?

@battleforevermore 2 жыл бұрын

Small issue , does the electronic meter shows all the power not the actual power consumption. There is 'reactive' power which can increase amp and power at input, but isn't actually used/consumed.

@battleforevermore 2 жыл бұрын

In conclusion, electric kettles should be most efficient at boiling water.

@lukaspfitscher8737 2 жыл бұрын

Helped me, thanks 👍

@albatross_v2 2 жыл бұрын

How does the receiver turn the microwave radiation into electricity?

@MHRolley 2 жыл бұрын

The receiving antenna couple's efficiently with the microwave waveform due to it's size/shape/geometry. So the shape of the receiving antenna is a good way of capturing the moving wave into the metal as moving charge. This received charge/signal is then connected to a shunt resistor/measurement resistor where the current through it can be measured through the magnetic field effect the current creates. The captured energy is then dissapated/used into a load of some kind to generate heat. The current through the measurement resistor is then measured. (the receiver gauge looks like it measures microamps I. E. Current not power)

@albatross_v2 2 жыл бұрын

@@MHRolley Thanks for the explanation.

@shmavitz 2 жыл бұрын

Great video! So refreshing to see a yank using sensible metric units!

@applepine1048 2 жыл бұрын

so pressure is just made by density, gravitation and height

@timmcknew5124 2 жыл бұрын

Indeed Pascal's Principle of fluid mechanics relates these quantities for a confined, incompressible fluid

@bertrandlapointe6479 2 жыл бұрын

Nice explanations here, good job ! I ran the same test on 4 panasonic 1200 watts oven and observe similar efficiency. Reading about 17 amps on the input for the first minute , I wonder if we should use input power to calculate efficiency ? Note less than 1 Amp is used for control , inverter fan and lamp

@mathjat7145 3 жыл бұрын

Awesome demo!

@geoffreyvoeth3993 3 жыл бұрын

good demonstration yet you deal with the general public and it might be better simply to measure btu using triple distilled purified and degassed feed water. btu can be compared much easier between all the different ovens out there. just a recommendation. the scientific process demands you run the same test like 100 times to get the statistical norms.

@taylorstarcevic2408 3 жыл бұрын

Tim rocks!

@timmcknew5124 3 жыл бұрын

Thanks Taylor!

@physicslab5787 3 жыл бұрын

Amazing ❤️

@lisandrosalazarescamilla3835 3 жыл бұрын

Thanks for the videos Tim

@timmcknew5124 3 жыл бұрын

You're welcome!

Ең жақсы KZbin

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