Tuesday, May 28, 2019
Sunday, May 26, 2019
Monday, May 20, 2019
My Video Went Viral. Here's Why
Anybody who is anybody is on some form of social media, and that includes youtube. The amount of content on youtube dwarfs everything else combined. This is an interesting discussion about why some youtube videos go viral and how the youtube algorithm works.
The video he is talking about is here: https://www.youtube.com/watch?v=uxPdPpi5W4o
Friday, May 17, 2019
Thursday, May 16, 2019
Wednesday, May 15, 2019
Tuesday, May 14, 2019
Saturday, May 11, 2019
Friday, May 10, 2019
Thursday, May 9, 2019
Wednesday, May 8, 2019
Sunday, April 21, 2019
Thursday, April 18, 2019
Tuesday, April 16, 2019
How Far Are The Nearest Stars?
When this guy goes on his road trip, the first thing I thought was that it looked like Salt Lake City.
Speaking of Idaho, I took one trip to the relatively small town of Pocatello to play in a chess tournament. It was 172 miles away. I love Salt Lake City, but it is hundreds of miles away from other major cities. Las Vegas is 420 miles away. Denver is 520 miles, and so is Reno Nevada. Boise is 340 miles.
Monday, April 15, 2019
Sunday, April 14, 2019
Friday, April 12, 2019
Thursday, April 11, 2019
Wednesday, April 10, 2019
Tuesday, April 9, 2019
Sunday, April 7, 2019
Drag racing
In a restaurant they had Drag Racing on a TV. The racer obtained 205 MPH in 6 seconds. I did some math and got 1.55 horizontal G forces, which is amazing. The net G force combined with the earth's gravity is close to 2.
It is my understanding that some electric vehicles can do better.
Best wishes,
John Coffey
It is my understanding that some electric vehicles can do better.
Best wishes,
John Coffey
Sunday, March 31, 2019
Range of human radio broadcast.
Not the square, but the blue dot.
I have heard that our radio broadcasts are too weak to extend even that far.
This is about three times the diameter of "Known Space", which is the area explored by humans in a fictional series of great science fiction novels by Larry Niven and others. https://en.wikipedia.org/wiki/Known_Space However, at least five different advanced species exist in "Known Space."
My point is that you could have a vast empire just in the area of the blue dot.
BTW, our galaxy has so much mass that there are a couple of smaller galaxies that orbit it in the same way planets orbit the sun.
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