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/sci/ - Science & Math


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16575181 No.16575181 [Reply] [Original]

Can you use an electron beam to send information through space?

>> No.16575307

photons are faster

>> No.16575452 [DELETED] 

>>16575181
Bump

>> No.16575988

>>16575181
Not really. Space charge forces and instabilities would cause the beam to break apart way before it ever reached its destination. I doubt any beam modulation would be able to keep its coherence over that distance anyway just from velocity spread and nonzero emittance.
The interplanetary magnetic field would also deflect it away from its destination.

>> No.16575999

>>16575181
i mean yeah we already do in the form of light

>> No.16576536

>>16575181
Why would you want to?

>> No.16576806

>>16575307
We're not talking about futons, here.

>> No.16576832

>>16575181
Information is carried by waves measuring the frequency and amplitude.

Why would shooting electrons at something do anything?

>> No.16576873

>>16575181
Light/electromagnetism move faster and doesn't have mass to worry about accelerating.

>> No.16578127

>>16575181
Yes, but why would you?

>OP won't answer this simple question

>> No.16578138

>>16576536
>>16578127
because a beam of electrons is how tv works and I want to see the aliens

>> No.16578141

>>16578138
>a beam of electrons is how tv works
Inside of a cathode ray tube, yes. But that's not how television signals are broadcast. Also, cathode ray tubes are obsolete.
>inb4 autistic retro hardware nerd screeching

>> No.16578151

>>16578141
>that's not how television signals are broadcast.
it is if the tv is really big.