Tuesday, February 07, 2023
Wolfram And Thermodynamics
Monday, February 06, 2023
Friday, February 03, 2023
Moon Time
"What time is it on the Moon?"
The Moon doesn't currently have an independent time. Each lunar mission uses its own timescale that is linked, through its handlers on Earth, to coordinated universal time, or utc -- the standard against which the planet's clocks are set. But this method is relatively imprecise and spacecraft exploring the Moon don't synchronize the time with each other. The approach works when the Moon hosts a handful of independent missions, but it will be a problem when there are multiple craft working together. Space agencies will also want to track them using satellite navigation, which relies on precise timing signals.
It's not obvious what form a universal lunar time would take. Clocks on Earth and the Moon naturally tick at different speeds, because of the differing gravitational fields of the two bodies. Official lunar time could be based on a clock system designed to synchronize with utc, or it could be independent of Earth time.
Thursday, February 02, 2023
Boston Dynamics Robot Update
Skipping Stone Physics
Wednesday, February 01, 2023
Surveillance Technology Update
Tuesday, January 31, 2023
Text-To-4D Dynamic Scene Generation
Fielder Photos In Public Domain
"Colorado's most famous nature photographer donates life work to public domain".
John
Fielder's work is excellent, and I'm glad to know people will be able to enjoy and share it with his blessing.
Monday, January 30, 2023
Hsieh Forbes Column: The Power Of Ordinary English To Improve Healthcare
Fish Spending Money
"In Japan, pet fish playing Nintendo Switch run up bill on owner's credit card"
Mutekimaru had previously installed sophisticated motion detection tracking software in fish tanks, enabling the fish to remotely control a Nintendo Switch console...
During the next seven hours, the fish reportedly managed to change the name of their owner’s Switch account before twice logging into the Nintendo store, where users can purchase games and other downloadable content.
They also managed to “check” legal terms and conditions, downloaded a new avatar and even set up a PayPal account from the Switch – sending an email out to their owner in the process, video from the livestream appeared to show.
But things didn’t end there. The fish were also seen adding 500 yen ($4) to Mutekimaru’s Switch account from his credit card during the livestream -- exposing his credit card details in the process...
Liquid Metal Robot
Monday, January 23, 2023
Light Posting Notice
Friday, January 20, 2023
Splines Explained
Video: "The Continuity of Splines". (I haven't watched the full 1 hour 13 minute video yet, but it comes highly recommended.)