Turning off the pumps Published on October 29, 2024October 28, 2024 by fivecolorssandt@icloud.com Cooling unplugged There are alternatives to the ubiquitous air conditioner. Read More
The answers Published on April 2, 2024March 31, 2024 by fivecolorssandt@icloud.com and explanations We present the answers to last week’s conundrums. Read More
April fool? Published on March 26, 2024March 26, 2024 by fivecolorssandt@icloud.com Camouflaged truth It’s not always easy to sort out fact from falsehood. Read More
The theoretical piston Published on August 22, 2023August 20, 2023 by fivecolorssandt@icloud.com A useful idea We ask a chicken-and-egg question about a textbook staple. Read More
What not to do Published on August 17, 2021August 15, 2021 by fivecolorssandt@icloud.com The project review Sometimes abandoning an effort is a positive step. Read More
Thermodynamics is unfair Published on June 26, 2018June 24, 2018 by fivecolorssandt@icloud.com Cooling is hard Why did air conditioning appear so long after fire? Read More
Hawking radiation – II Published on April 3, 2018April 2, 2018 by fivecolorssandt@icloud.com Black holes to the rescue We contine with an explanation of why Stephen Hawking is famous among physicists. Read More