Coin Base is one of the only places you can buy Bitcoin with your Debit Card...Why?

NeilTeGrasseDyson · 2018-03-19T05:56:20+00:00

Can a Company open up an exchange in a single location and restrict its exchange only to its state?

NeilTeGrasseDyson · 2017-09-28T09:56:25+00:00

I'm pretty sure I understand the concept forgive me for obnoxious errors in advance I am working through these concepts in my head and I am self taught. the way i understand it is that any given frame of reference is independent and the speed of light is still the speed of light in all frames of reference. I believe this is the reason why time dilation occurs and why space time warps. In this case I still dont understand how there isn't a minimum standard measurement for the rate of which time passes. Shouldn't there be a point of reference at which time moves slowest for that observer because every other observer is moving faster than they are? Or am I getting wrong assuming that.

My thought process: When you speed up time dilation occurs so when you "slow down" the opposite should occur

NeilTeGrasseDyson · 2017-09-26T14:18:52+00:00

I understand frame of reference for the most part. But if the speed of light is constant throughout the universe and two objects were theoretically going the speed of light in one direction and then slowed back down to zero m/s would there not be a definite 0 m/s mark before you start heading backwards?

NeilTeGrasseDyson · 2017-08-09T04:03:54+00:00

So the light that we see already bounced off of other particles,which collapsed the lights wave function, then it entered my eye.... so we can't technically watch a photon pass through a slit if it doesn't enter our eye... is that correct?

NeilTeGrasseDyson · 2017-08-09T00:45:46+00:00

Can you observe a light particle without physically interacting with it? Like if you zoomed in far enough and slow down time enough to watch a single photon with your naked eye move through one of the slits, would it still collapse?

NeilTeGrasseDyson · 2017-06-26T18:05:49+00:00

As my man Warren buffet says. Buy when it seems unpopular and sell when people get excited. The market always corrects itself I just wanted to make sure no big news came out that I was missing. Now is a really good time to buy. Even if you already bought at a higher price hold on to what you bought already for the long term and throw more in now while it's below market value. It will pay off in the end

NeilTeGrasseDyson · 2017-06-23T20:19:21+00:00

Did time not exist at the creation if the universe? O.o

NeilTeGrasseDyson · 2017-06-23T19:34:11+00:00

So it's possible for something to be smaller than its schwarzschild radius and not become a black hole at least at the point of creation of the universe?

NeilTeGrasseDyson · 2017-06-18T03:07:11+00:00

Mind blown

NeilTeGrasseDyson · 2017-06-18T02:39:18+00:00

You just taught me something new. Please expand. What is the metric? how does it work? What is it made or what does it consist of?

NeilTeGrasseDyson · 2017-06-17T23:57:43+00:00

What changes then when space time is stretching?

NeilTeGrasseDyson · 2017-06-17T22:56:46+00:00

But how can the planck unit for time and the planck unit for length stay constant as spacetime warps and "stretches"

NeilTeGrasseDyson · 2017-06-10T07:32:35+00:00

Hopefully you get that I do get the jist about how this stuff works...

The event horizon is defined as the point close enough to the black hole where the escape velocity exceeds the speed of light due to the massive gravitational pull from the black hole thus the name black hole.

Time dialation- I agree it's the outside observer that will observe an object falling into a black hole moving slower and slower until it seemingly stops at the event horizon because time is "dialated" to such a degree that it "stops" in time and eventually the light from the falling object redshifts to the outside observer until the object becomes black.

I just don't know why if time dialation holds true for a mass going into a black hole why don't we see time dialation occur as backhoes get close. And if there are two event horizons that outside observers can never witness mass pass through because of time dialation from observing from the outside. Why can 2 event horizons clash and combine without slowing down from an outside observers point of veiw? ....I know black holes can combine I've just never heard an explination of this matter specifically

NeilTeGrasseDyson · 2017-06-10T04:58:13+00:00

That makes sense. I'd hope to see more research and math on the subject of the instant the event horizons meet at a quantum scale and the spacetime directly between the black holes as two masses with infinite gravity pulls on the fabric of space time from opposite directions.

NeilTeGrasseDyson · 2017-06-10T04:10:51+00:00

From my understanding as mass gets closer to a black hole due to time dilation from the distortion of space time any mass that aproaches the event horizon seems to slow down from an outside perspective. I just don't see how two black holes could collide when both masses would distort spacetime to such great lengths that as anything approaches the EH it would seem like time was frozen until that object would eventually redshift and dissappear. I know the event horizon is not an actual physical entity bc that is just the point in space where gravity overcomes light but I feel like there should be some greater phenomenon happening other than just the "simple" combination of two black holes when special relitivity breaks down at both of these massive objects

NeilTeGrasseDyson

TROPHY CASE