751 reputation
416
bio website orthogonaltonormal.com
location Johnstown, PA
age 31
visits member for 1 year, 5 months
seen 5 hours ago
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//TODO Glorious Lies

1d
comment Why doesn't light kill me?
Something in your eye can respond to multiple photons at high enough intensities. Some people blinded by accidents with IR lasers have reported the last thing they saw was a green flash at a color that corresponded to double (triple?) photon absorption events.
May
15
comment Why doesn't soda fizz at high pressure?
If he hadn't shook it up first I'd expect much less fizz due to the much lower difference between pressure the dissolved CO2 was saturated at and the atmosphere. With the can being shook up I don't think it would be answerable without a lot of of math. A a minimum we'd need to know the actual pressure in the unopened can, and have a way to calculate how shaking the can accelerates the rate of gas release. (I have no idea how to do this.)
May
15
comment Why doesn't soda fizz at high pressure?
At the 27s mark he comments after taking a sip that there is a little bit of fiz.
May
8
comment Is the universe fundamentally deterministic?
"Not only does God play dice, but... he sometimes throws them where they cannot be seen." Stephen Hawking
May
7
comment Why does a supernova explode
Has anyone managed to make a model that reliably explodes when an explosion is expected? I remember it being a major problem when I was an undergrad a decade ago.
Apr
9
comment Projectiles and escape velocity
Adding to the evilness is that in the real world Aneesh Dogra's intuition that the numbers should be different is correct because launching at an angle will result in more deceleration from air drag before clearing the atmosphere.
Mar
28
comment How long can you survive 1 million degrees?
@Clustermagnet Chuck Norris can roundhouse kick a plank out of existence in less than $5.39 * 10^{-44}$ seconds.
Mar
27
comment What would be the effects if Jupiter was to blown up?
@Mr.Mindor increasing the distance from 4.2 to 6.2 AU would reduce the amount of energy received by the Earth by a little more than half from the worst case. However Luboš used 5AU (approx mean distance) for his calculations so the Earth would still take 2/3rds as much even in the best case. A related question that I'm not sure of the answer to would be if - assuming the Earth, the Sun, and Jupiter were perfectly aligned - could the Sun itself effectively shield us from the blast; or would enough energy still be diffracted through its atmosphere to fry us.
Mar
27
comment How long can you survive 1 million degrees?
@JerrySchirmer The hot parts of the ISM can get as low as 10^-4 ions/cm^3; which is ~10^23 times less dense than air. Assuming the radiation hazard is linear with density, you'd die from decompression well before the ~1000 seconds it would take for the radiation dose to reach dangerous levels.
Mar
27
comment Eye sensitivity & Danger signal
I'm surprised this was asked here instead of on: ux.stackexchange.com
Mar
26
comment Help me get out of a speeding ticket
@Gugg We don't know that the radar is correctly calibrated. If it's not laci has a decent chance of getting the ticket reduced/tossed at court; but since many people find it easier to pay than to take the time off for court some police depts are sloppy about keeping gear in cal.
Mar
23
awarded  Enlightened
Mar
23
awarded  Nice Answer
Feb
27
comment If an electric car were to drive without having to stop, would the range be greatly affected by the speed at which the vehicle is moving?
You got 12.5kW and 4.5kW, isn't that be suggesting a 3x spread instead of a 2x spread?
Feb
17
comment Was the 2013 meteor over Russia stronger than an atomic bomb?
I think the relevant question here is what method is being used by the scientists who got the several hundred kt estimate from infrasound detectors intended to monitor nuclear bomb tests.
Feb
17
comment Was the 2013 meteor over Russia stronger than an atomic bomb?
@GarrettAlbright Disagree for practical reasons. An explosion of that size is outside the span of normal human experience; and there's a lack of well known natural events that created explosions in the 10-100kt range that could be used instead.
Feb
11
comment Staying in orbit - but doesn't any perturbation start a positive feedback?
In theory couldn't a single hit alter the Earths orbit sufficiently that its perhelion entered the surface of the sun. From there friction with the outer layers of the sun would drain energy from the orbit until either its aphelion was also within the sun or it completely vaporized and dissipated. At that point "fell into the sun" would be a reasonable description. Assuming a sufficiently energetic impactor didn't gravitationally disrupt the planet into an expanding debris cloud during the initial impact.
Jan
31
awarded  Informed
Jan
18
comment Kinetic energy of a photon and Schwarzschild radius
@71GA Congrats. I never managed to catch my professors on any errors more serious than flipped signs or the like. :)
Dec
19
awarded  Yearling