Archive for the 'Physics' Category

Ein virtuelles Oszi!

Friday, April 21st, 2017

XXY Oscilloscope is an interactive oscilloscope emulator by Neil Theipen. This is fun to play with!

Link via MetaFilter: something something oscilloscope your ocelot.

Mission Control

Wednesday, April 19th, 2017

The Guardian: Apollo 13: celebrating the unsung heroes of mission control. “Ahead of a new documentary about Nasa’s ground crews, astronaut Jim Lovell talks about the team that saved his life during 1970’s ill-fated moon mission”.

“It is unlikely there is anyone who has more appreciation for the work of Nasa’s mission control than Captain Jim Lovell. His Apollo 13 mission was nearly destroyed when an oxygen tank in its main command module exploded. His spaceship was crippled and only narrowly coaxed to a safe return to Earth thanks to his crew’s heroic efforts – and the crucial aid of mission control.

Lovell was commander of Apollo 13 but was forced to abandon his mission’s planned lunar landing when the blast, which occurred 200,000 miles from Earth and two days into its journey in April 1970, triggered a major loss of power. Cabin heating stopped working, the water supply was disrupted and carbon dioxide began to build up. Lovell and crewmen Jack Swigert and Fred Haise were facing death.”

The movie is available here on demand.

Link via Garret.

Tick tock

Thursday, March 9th, 2017

Here’s how to turn an old hard drive and some LEDs into a clock: LED Hard Drive Clock 3.5″ by Ian Smith. Take a look at his demo video (YouTube, 3min)

Don’t be put off by the year-10,000-compliant website design. One of my students built a clock like this and it is just about the coolest thing I’ve ever seen!

Last man to walk on the moon

Tuesday, January 17th, 2017

The Two-Way: Gene Cernan, Last Man To Walk On The Moon, Dies At 82.

“The last person to leave footprints on the moon has died. NASA reported that Gene Cernan died Monday at the age of 82, surrounded by his family.

Gene Cernan flew in space three times, including twice to the moon. Cernan was big, brash and gregarious. And if he hadn’t been lucky, he could have missed his chance to walk on the moon.”

See also MetaFilter: The Last Man on the Moon for more links.

Physics can be broadly broken down into three parts

Monday, December 5th, 2016

Dominic Walliman: The Map of Physics. Direct link to the map itself.

Dominic Walliman is a physicist and science writer and the author of the Professor Astro Cat science books.

Some links via MetaFilter: (Includes the Chasm of Ignorance).