wanna boggle your mind a little?.. galaxy site...?

Question

while looking for info about galaxies, I found this site....

http://www.motodom.com/Galaxy.htm

there, size, motion, distance between, are answered by putting yourself in there in a way you can understand!...wow!....

items 8, 9, 10, and up really boggled me!....and I loved it!... try it.. see what you think!...

Ray!... your mind must keep you awake nights!... ;-)... thanks for more to keep me awake!

Answer 1

WOW! that is amazing...

Answer 2

8. I don't know about their prediction of the lifespan of the universe (lots of discussions about this, still). However, there is such a thing as the "smallest possible time span" called the Planck time. Using our present understanding of physics, we cannot determine events that can take place faster than a Planck time (and we cannot determine what happened within one Planck time of the Big Bang). A Planck time unit is 5.4 x 10^-44 second
That is 0.000...(total of 43 zeroes)...0054 second.
So the age of our universe is (approximately) 8.2 x 10^60 Planck times. 82 followed by 59 zeroes (as an approximation, of course).

9. The same is true of scientific notation (like the stuff I've been using). There is a risk that readers see 10^6 as only half of 10^12, when it is really one millionth. You have to multiply 10^6 by one million to get 10^12.
A number 10^100 (1 followed by 100 zeroes) was invented around 1940. It was thought that the number would never be used in real life, as the total number of particles in the entire universe (even counting photons, neutrinos and so on) is at best around 10^94 -- a million times smaller than 10^100.
10^100 is called a googol.
Then came transatlantic voice communication by underwater cable. It required a lot of signal amplification and filtering. Amplifiers would be integrated along the wires, each one amplifying the signal one million times. At least 20 amplifiers were used on the lines between the US and the UK. Total amplification: at least 10^120, that is 10^20 times bigger than a googol (100 million million million times).
Larger numbers were invented, such as the googolplex (10 raised to the power googol) and, every time, someone eventually found a use for the number. That's the part that boggles my mind.

10. Of course, walking at that speed would do strange things to your perception of time. Once you got somewhere, you could turn around and see yourself walking away backwards... Think about it.
You arrive after 19 hours. You turn around after one hour and you see the light that left your body when you were one light-hour away (which, for you was 1/2000 of an hour before arriving).
You would see yourself walking backwards at a very slow pace (1/2000 of your real walking speed) and it would take a little over 4 years for your image to make it all the way back to Earth.

Answer 3

thx dude