These forums have been archived and are now read-only.

The new forums are live and can be found at https://forums.eveonline.com/

Out of Pod Experience

 
  • Topic is locked indefinitely.
 

I'm a Particle Astrophysicist, ask me anything
Author
Previous Topic Next Topic
Tsadkiel
Aliastra
Gallente Federation
#21 - 2012-02-04 00:00:05 UTC
W1rlW1nd wrote:
Tsadkiel wrote:
Kiroma Halandri wrote:
How much wood would a wood chuck chuck if wood chucks could chuck would?


that depends on the chucking rate, which we would have to measure. we then multiply by the average lifetime of said woodchuck to get the answer...



The real answer to this is of course self relevant:

A. A wood chuck could chuck as much wood as a wood chuck could chuck if a wood chuck could chuck wood.


mind = blown

XD
W1rlW1nd
WirlWind
#22 - 2012-02-04 00:04:51 UTC
Tsadkiel wrote:
well, yes, but probably not from GRBs. their distance and energy suggests that they are an early universe phenomena



One of those puppies is aimed directly at the earth tho' [or very very close along the axis]. When I saw images of the star+ring thing in a documentary it sent chills down my spine lol.

Isn't a 'near miss' by a Gamma ray burst pretty devastating as well?
Tsadkiel
Aliastra
Gallente Federation
#23 - 2012-02-04 00:07:29 UTC
a near miss would be a hit, so, yes? heheheh, but yea, even if you are off axis, the radiation intensity is still pretty large. on average, when they go off, GRBs become the most luminous objects in the sky (though not in the visual spectrum)
Tsadkiel
Aliastra
Gallente Federation
#24 - 2012-02-04 00:10:04 UTC
as a point of interest, let's have some fun with units! :3 if we assume that the typical GRB has a fluence of 1e-6 erg/cm2 and if it comes from a cosmological source (d = 5 Gpc) and if we assume its energy is emitted isotropiclly (it isn't but roll with it anyway), then we get a source energy, E = 4*pi*fluence*d^2, of around 2e51 ergs, or 4.5e37 Chipotle Burritos heheheh (for a ~2000 calorie burrito)
Alpheias
Tactical Farmers.
Pandemic Horde
#25 - 2012-02-04 00:10:06 UTC
At what distance from the Sun would you be able to cook egg on the hull of a spaceship?

Agent of Chaos, Sower of Discord.

Don't talk to me unless you are IQ verified and certified with three references from non-family members. Please have your certificate of authenticity on hand.
Tsadkiel
Aliastra
Gallente Federation
#26 - 2012-02-04 00:13:29 UTC  |  Edited by: Tsadkiel
Alpheias wrote:
At what distance from the Sun would you be able to cook egg on the hull of a spaceship?


this is a good one and i will need to look up some numbers to calculate it but i CAN do it :3

i actually need one bit of information from you.

in how much time do you want to fry your egg? you can do it at as little as 50C if you want to wait 20 minutes heheh
W1rlW1nd
WirlWind
#27 - 2012-02-04 00:14:53 UTC
Alpheias wrote:
At what distance from the Sun would you be able to cook egg on the hull of a spaceship?



a better question might be, "at what distance would you NOT be able to cook an egg" assuming the surface is facing the sun.

You can already cook an egg on sun exposed surfaces on the earth, and that is through miles of atmosphere.
Sidus Isaacs
Center for Advanced Studies
Gallente Federation
#28 - 2012-02-04 00:15:49 UTC
What is your take on the fate of the universe? Cold dead expansion as it seems to be heading towards now, or something different?
Amaroq Dricaldari
Ministry of War
Amarr Empire
#29 - 2012-02-04 00:18:05 UTC
Did you know that my bedroom is now irradiated with Alpha Particles?

It all happened when my Smoke Detector broke.

You see, Smoke Detectors work by shooting Alpha Particles around inside themselves (they contain Americium 241), and that allows the air within them to conduct electricity. Thus, when Smoke enters the Smoke Detector, it blocks the Alpha Particles, thus breaking the circuit, thus causing the alarm to go off.

My smoke detector went off for no reason what so ever a few months ago, and now it is hanging from the cieling by its cable. And thus, there are now enough Alpha Particles in my room to conduct the Static Electricity between two halves of a bandaid package, but nowhere near enough to kill me.

But I do hope that it isn't enough to give me cancer either.

This is my signature. There are many like it, but this one is mine.
Tsadkiel
Aliastra
Gallente Federation
#30 - 2012-02-04 00:19:52 UTC
current evidence points towards a heat death :( as the universe continues to expand it will continue to cool towards absolute zero. this fate was surprisingly determined by recent limits placed on the mass of the neutrino! the neutrino density in the universe is actually fairly large! if its mass would have been greater than or equal to 2.2 eV, the neutrino energy density would have been large enough to counter the universes expansion and it would have been cyclical.

alas, we know think it is probably <2.2 eV
Amaroq Dricaldari
Ministry of War
Amarr Empire
#31 - 2012-02-04 00:21:51 UTC
If the Universe is going to end, then why are we sitting here worrying about it? There isn't anything we can do about it anyway.

This is my signature. There are many like it, but this one is mine.
Alpheias
Tactical Farmers.
Pandemic Horde
#32 - 2012-02-04 00:22:15 UTC
Tsadkiel wrote:
Alpheias wrote:
At what distance from the Sun would you be able to cook egg on the hull of a spaceship?


this is a good one and i will need to look up some numbers to calculate it but i CAN do it :3 probably will reply tomorrowish


Calculate for hard and soft boiled.

And explain it in a non-mathematical way.

Agent of Chaos, Sower of Discord.

Don't talk to me unless you are IQ verified and certified with three references from non-family members. Please have your certificate of authenticity on hand.
Tsadkiel
Aliastra
Gallente Federation
#33 - 2012-02-04 00:23:12 UTC
Amaroq Dricaldari wrote:
Did you know that my bedroom is now irradiated with Alpha Particles?

It all happened when my Smoke Detector broke.

You see, Smoke Detectors work by shooting Alpha Particles around inside themselves (they contain Americium 241), and that allows the air within them to conduct electricity. Thus, when Smoke enters the Smoke Detector, it blocks the Alpha Particles, thus breaking the circuit, thus causing the alarm to go off.

My smoke detector went off for no reason what so ever a few months ago, and now it is hanging from the cieling by its cable. And thus, there are now enough Alpha Particles in my room to conduct the Static Electricity between two halves of a bandaid package, but nowhere near enough to kill me.

But I do hope that it isn't enough to give me cancer either.


alpha particles are just helium nuclei. they are not very penetrating because of this. as long as you don't ingest anything radiating alpha particles, you will probably be fine
Tsadkiel
Aliastra
Gallente Federation
#34 - 2012-02-04 00:24:28 UTC
Amaroq Dricaldari wrote:
If the Universe is going to end, then why are we sitting here worrying about it? There isn't anything we can do about it anyway.



everyone you have ever known or loved will die eventually. entropy demands it. given that case, why do anything? :p
Tsadkiel
Aliastra
Gallente Federation
#35 - 2012-02-04 00:24:55 UTC
Alpheias wrote:
Tsadkiel wrote:
Alpheias wrote:
At what distance from the Sun would you be able to cook egg on the hull of a spaceship?


this is a good one and i will need to look up some numbers to calculate it but i CAN do it :3 probably will reply tomorrowish


Calculate for hard and soft boiled.

And explain it in a non-mathematical way.


how long do you want it to cook for though.
SpaceSquirrels
#36 - 2012-02-04 00:26:17 UTC
What do you believe people should know that don't.
Alpheias
Tactical Farmers.
Pandemic Horde
#37 - 2012-02-04 00:26:18 UTC
Tsadkiel wrote:


in how much time do you want to fry your egg? you can do it at as little as 50C if you want to wait 20 minutes heheh


I won't make it easy for you so I'll say, it shall be so edible that you wouldn't know the difference between one that has been cooked on Earth or in space. Twisted

Agent of Chaos, Sower of Discord.

Don't talk to me unless you are IQ verified and certified with three references from non-family members. Please have your certificate of authenticity on hand.
Amaroq Dricaldari
Ministry of War
Amarr Empire
#38 - 2012-02-04 00:30:09 UTC
You should make a wish.

Also, you look like a Vulcan, OP.

This is my signature. There are many like it, but this one is mine.
Tsadkiel
Aliastra
Gallente Federation
#39 - 2012-02-04 00:37:14 UTC
Alpheias wrote:
Tsadkiel wrote:


in how much time do you want to fry your egg? you can do it at as little as 50C if you want to wait 20 minutes heheh


I won't make it easy for you so I'll say, it shall be so edible that you wouldn't know the difference between one that has been cooked on Earth or in space. Twisted


between 3 to 5 minutes then :3
Tsadkiel
Aliastra
Gallente Federation
#40 - 2012-02-04 00:39:12 UTC
SpaceSquirrels wrote:
What do you believe people should know that don't.


the basics of the Philosophy of Science. what is science? what is a scientific theory? what constitutes a logical statement? what counts as empirical evidence? etc... this would cut out a lot of the asshattery in the world i think, especially here in the states... which makes me so... SO sad by the way...