splat

13 ms·

61.
by splat 13y ago
Roger Penrose has been making a similar argument for some time now. He argues that consciousness must be a quantum phenomenon and that it takes place in microtubules in neurons. It's an interesting idea, but has been met with a lot o
62.
by splat 13y ago
Small note -- Caltech and Harvey Mudd are both private, not public.
63.
by splat 13y ago
Apologies for contributing to this going even further afield of the bounds of HN-ish discussion, but I can't help but point out the relevance of one of the big points from the Council of Trent. The Church argued in favor of the idea t
64.
Sunrise problem(en.wikipedia.org)
1 points by splat 13y ago|0 comments
65.
by splat 13y ago
Who would they take hostage?
66.
by splat 13y ago
Yes, tracking is one technique to get around this. It's generally difficult (though not impossible!) for a few reasons. The first is that most telescopes are set up to track the sky -- they can move pretty uniformly along with the ro
67.
by splat 13y ago
Exactly, calculating trajectories (accurately) is very difficult. I did a summer project at JPL where we would take astrometric measurements of various minor planets (including Pluto) and then update the trajectories. Even a big, well stu
68.
by splat 13y ago
Do you do a fluoride rinse? That can help to strengthen enamel.
69.
by splat 13y ago
Wow, I did not expect this to end up here! I learned the Battle of Manassas not too long ago, and it was a lot of fun! The innovations Tom Wiggins introduced in that piece predated a number of twentieth century composers by nearly a centu
70.
by splat 13y ago
One thing I've spent some time thinking about is whether it would be possible to use atomic clocks to get a better measurement of the gravitational constant G. (G is by far the most poorly known of all the fundamental physical constan
71.
by splat 13y ago
The part of the rope within the event horizon would not act like an anchor. It would just immediately rip apart from the rope outside of the event horizon.
72.
by splat 13y ago
If a rod is held above the event horizon and then slowly lowered down into the event horizon, any part of it that passes through the event horizon will rip apart from the rest of the rod. It doesn't matter what the rod is made of. It
73.
by splat 13y ago
If you dangle something into the event horizon it will be lost forever. Large objects in free fall wouldn't travel across the event horizon instantaneously. It's just that by the time a signal from the front of the object reached
74.
by splat 13y ago
The standard candles are Type Ia supernova which are when white dwarfs exceed the Chandrasekhar mass and become neutron stars. It is thought that when neutron stars exceed the maximum mass of a neutron star (which is not well known, by the
75.
by splat 13y ago
You would be torn apart by tidal forces before reaching the event horizon of a stellar mass black hole, but you wouldn't be torn apart by tidal forces before reaching the event horizon of a supermassive black hole.
76.
by splat 13y ago
You cannot orbit a black hole immediately outside the event horizon. The smallest distance at which a circular orbit is possible is called the photon sphere because you must be moving at the speed of light to maintain a circular orbit. Th
77.
by splat 13y ago
There's a difference between hovering above an event horizon and sticking your leg through versus free-falling through an event horizon. The former is not an inertial reference frame, so you would feel enormous forces due to the fact
78.
by splat 13y ago
This supernova will be very important for figuring out what Type Ia SNe are. As Phil Plait mentions, astronomers only know that white dwarfs are involved, but there are several competing models as to how the white dwarf(s) explode. One of
79.
Type Ia supernova reported in M82(astronomerstelegram.org)
1 points by splat 13y ago|0 comments
80.
by splat 13y ago
That's basically Catholic social teaching right there. Try to donate at least 10% of your income, more if you can afford it (known in Catholic theology as solidarity), and preferentially donate to local causes (known in Catholic theol
81.
by splat 13y ago
Kip Thorne and Roger Blandford have an excellent introduction to tensors in their lecture notes on the Applications of Classical Mechanics. See sections 1.3 and 1.5: http://www.pma.caltech.edu/Courses/ph136/yr2012
82.
by splat 13y ago
I can still get a ticket from an officer.
83.
by splat 13y ago
At least on my ride home some of the lights default to remaining green along the major street unless a car trips the sensor on the intersecting street. Unless a car comes along it will never change.
84.
by splat 13y ago
I used to do that. It gets old really fast. If you want to make a left-hand turn, you have to bike over to the crosswalk, press the button, wait thirty seconds for the light to change, walk across, (another thirty seconds on a wide street
85.
by splat 13y ago
As a cyclist, though, sometimes the light will never turn. Most states treat bicycles identically to cars as far as red lights go. So, sorry, but I'm not going to wait at a red light for 45 minutes when it's freezing out for a c
86.
by splat 13y ago
It depends. In my city (a mid-sized city in the Midwest), being over the meter is a $25 ticket and that's the cheapest I've seen. Parking for too long in a 3-hr spot is $75. And if your car is towed it will be at least $125 to
87.
by splat 13y ago
It all depends. What if it's three o'clock in the morning and you've been waiting at a light for five minutes and its not turning and you can see that no one's coming in the other direction?
88.
Simple rules for the care and feeding of scientific data(arxiv.org)
1 points by splat 13y ago|0 comments
89.
by splat 13y ago
True, but meteors that burn up on entry can still cause damage -- see the Chelyabinsk meteor last year. It exploded in the atmosphere but still shattered windows and damaged thousands of buildings in the nearby town. Few would have surviv
90.
by splat 13y ago
I think Crito was referring to the French Resistance during WWII, not the French Revolution.

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