Recent questions in Electromagnetic Radiation

+210 votes

0 answers

Where are electromagnetic waves produced in the biosphere?

asked Nov 11, 2022 in Electromagnetic Radiation by Captain Caffeine

+15 votes

0 answers

What is “relic radiation”?

asked Nov 11, 2022 in Electromagnetic Radiation by teengateway

+13 votes

0 answers

Since nitrogen and oxygen are transparent to infrared radiation, how do electric heaters warm the air? Do they only warm select gasses (e.g. water vapor) while the rest indirectly warm through conduction? Would the heater stop working in pure N2?

asked Nov 10, 2022 in Electromagnetic Radiation by ToolHead

+18 votes

0 answers

Can photons have different amplitudes?

asked Oct 20, 2022 in Electromagnetic Radiation by Joe beeb

+25 votes

0 answers

How far can X-ray waves travel?

asked Oct 20, 2022 in Electromagnetic Radiation by tetleyman

+189 votes

0 answers

Can the electromagnetic tensor used in QED vary in time? Do we always assume that the field across space is fixed and does not move? What about in the case of radiation?

asked Oct 20, 2022 in Electromagnetic Radiation by whibley

+141 votes

0 answers

A 45 kW broadcasting antenna emits radio waves at a frequency of 4 MHz. Is the quantum nature of the electromagnetic radiation important in analyzing the radiation emitted from this antenna?

asked Oct 19, 2022 in Electromagnetic Radiation by JosephS

+16 votes

0 answers

Are more people losing hair now because of RF radiation (cell, wifi, bt, etc…)?

asked Oct 19, 2022 in Electromagnetic Radiation by slybacon

+4 votes

0 answers

I have heard that the electromagnetic spectrum is made of electrons and also that it’s made of photons. Is there a difference between the two?

asked Oct 19, 2022 in Electromagnetic Radiation by Trapper T

+16 votes

0 answers

What is the difference between visible light and other types of electromagnetic radiation that stars produce?

asked Oct 19, 2022 in Electromagnetic Radiation by PhoenixVagabond

+118 votes

0 answers

How can electromagnetic radiation be used to create images of objects?

asked Oct 18, 2022 in Electromagnetic Radiation by Stuart281075

+1 vote

0 answers

What is EMF radiation and how best can I prevent it?

asked Oct 18, 2022 in Electromagnetic Radiation by firestop

+24 votes

0 answers

Are EM waves, or IR waves in particular, always emitted perpendicular to the emitting surface? For example, if a flat sheet of metal was emitting IR waves, what shape would the wavefronts take?

asked Oct 18, 2022 in Electromagnetic Radiation by Coops666

+25 votes

0 answers

Do magnets block electromagnetic radiation (EMR) from cell phones or other devices? If so, do they work for all frequencies of EMR or just some?

asked Oct 18, 2022 in Electromagnetic Radiation by MikeGaunt

+18 votes

0 answers

How do I reduce the effect of electromagnetic spectrum?

asked Oct 18, 2022 in Electromagnetic Radiation by NovaMystic

+4 votes

0 answers

Will more of a radioactive material give me more radiation?

asked Oct 17, 2022 in Electromagnetic Radiation by kpm

+93 votes

0 answers

Can electromagnetic energy be fashioned to produce thrust?

asked Oct 17, 2022 in Electromagnetic Radiation by keirajohnston

+2 votes

0 answers

What would happen if UV radiation didn't exist?

asked Oct 16, 2022 in Electromagnetic Radiation by Darren5473

+2 votes

0 answers

Is 0.1 milligray a high amount of radiation and could it induce cancer?

asked Oct 16, 2022 in Electromagnetic Radiation by detrtcx

+15 votes

0 answers

Do cell phones emit radiation when using WiFi?

asked Oct 16, 2022 in Electromagnetic Radiation by ZephyrTwilight

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Recent questions in Electromagnetic Radiation

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