Thought for the day...

nsaspook

Joined Aug 27, 2009
16,330

cmartinez

Joined Jan 17, 2007
8,776
"A team of CIA officers gained unrestricted access to the display for 24 hours, which turned out not to be a replica but a fully-operational system comparable to the Lunik 2. ... The team disassembled the vehicle, the posting adds, "photographed all the parts without removing it from its crate before putting everything back in its place, gaining invaluable intelligence on its design and capabilities."
 

cmartinez

Joined Jan 17, 2007
8,776
From a post in LinkedIn:

1722363743343.png

It's not really new, but it remains astonishing. Python consumes 75 times as much energy as C when performing the same tasks and is 71 times slower! Rust, C++, Java, and Ada are within a factor 2 of plain C. Since computing is responsible for increasing energy consumption, this is relevant. Yet, in teaching, there is a shift from languages to Java to Python. This is not desirable from a sustainability point of view.

The table shows data from the paper by Rui Pereira, Marco Couto, Francisco Ribeiro, Rui Rua, Jácome Cunha, João Paulo Fernandes, João Saraiva, Ranking programming languages by energy efficiency, Science of Computer Programming, 2021
 

cmartinez

Joined Jan 17, 2007
8,776
1722527126798.png
The grass on Center Court at Wimbledon over the decades shows a change in the wear patterns. This transformation is not the result of new, more resilient turf or grounds keeping technologies, but due to changing racket technology.

In the era of wooden rackets, the heavy weight of the racket resulted in a "serve and volley" game. Given the impossibility of finishing a point from the back of the court, players resorted to volleying to win points at the net.

With the shift from wooden rackets to modern materials like carbon fiber and graphite, the game moved towards powerful baseline play. Today's players are taller, hit hard from both sides, serve aggressively, and finish points predominantly from the back of the court.
 
Top