Friday, August 28, 2020

Alexandre Dumas - Wikipedia

The Google Doodle is devoted to Alexandre Dumas, who wrote The Count of Monte Cristo, and The Three Musketeers.
 
https://en.wikipedia.org/wiki/Alexandre_Dumas

Saturday, August 15, 2020

Days of the week

'There is one major theme that binds together all the days of the week—all of them are named after gods. Furthermore, out of the seven days of the week, six of the days are named after Germanic and Norse gods.

Sunday is named after the Germanic sun goddess Sunna. Monday is named after the Germanic moon god, Máni. Tuesday is named after the Norse god of combat, Týr. Wednesday is named after Germanic god and soul-tender, Woden. Thursday is named after the Norse god of thunder, Thor. Finally, Friday is named after the Norse goddess of foresight and wisdom, Frigg.

This leaves us with Saturday, the only day of the week whose name cannot be traced back to either Germanic or Norse deities. It's the only day of the week that retains its Roman origin in English and is named after the Roman god Saturn. As it stands, Saturday is "Saturn's Day", which is a far more noble name than we would have had if we had retained the old Norse designation—Saturday would instead be laugardagr or, literally, "washing-day".'


--

Friday, July 17, 2020

puzzle

I had to explain this one to a ton of people on Facebook.  I got it on the first try.  The guy who posted said that it took him 6 or 7 tries.



What I don't like about these problems is that they change the pictures in the last line, requiring us to infer the values and confusing the solver. It is not just a matter of simple algebra.  

--
Best wishes,

John Coffey

http://www.entertainmentjourney.com

Wednesday, June 24, 2020

Monday, January 13, 2020

Can This Deadly New Virus Destroy the Human Race?

Many of the recent scary diseases have come from China, which makes sense given the large population base and population density. More than half the world's population lives within a circle in Southern Asia including China and India.

https://youtu.be/-Jhz0pVSKtI

The original Game of Life was incredibly dark

https://youtu.be/fXdBZWyiSLA



Best wishes,

John Coffey

Sunday, December 15, 2019

Ringworld - Wikipedia


https://en.wikipedia.org/wiki/Ringworld

Just finished the audiobook for this on YouTube.  Great book.    https://youtu.be/4DMkDqIjEuI

I read the novel around 30 years ago. The YouTube version of this is a little uneven on quality.  I suspect that it was copied from audio tape. 

I already have listened to the next two books on Audible.  I may listen to them again.  I started with the 4 prequels on Audible and I'm slowly  working my way through the entire series. 

Multiple authors have contributed to the "Known Space" universe that Larry Niven created.  There may be as many as 40 books. 


Best wishes,

John Coffey

7 World Cities Most Likely to Experience an Earthquake | Travel Trivia

Thursday, November 28, 2019

You can launch a balloon mission to the stratosphere for about the cost of an iPad. | Space

https://www.space.com/20089-near-space-balloons-science.html

I have been wondering for a long time why couldn't you have a space capsule that is lifted by multiple hydrogen-filled balloons, and when it reaches the maximum altitude, it would pump the hydrogen out of the ballons and use it for fuel to continue its journey upwards?  At the maximum balloon height, air resistance would be minimal.  The temperatures would be cold making it easier to store gasses under compression if you need to.

I assume that ordinary balloons will break or be fragile.  Perhaps tougher materials can be devised for this.

You will also need oxygen.  The only question is if you can get enough from the atmosphere when you need it, or if you have to store it.  I'm thinking that maybe you could work out a process to acquire and store it as you rise.

To get a better technology, we need a really dense energy source, such as nuclear power, nuclear fusion, or antimatter.  The last two are beyond our capability, for now.