Planet sees 10 straight months of record-breaking heat
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Karate physics: How your hand can break concrete without breaking itself
In the late 1970s, a team of karate-loving physicists decided to perform an experiment inspired by their collective passion for martial arts. The group was made up of physicist Michael Feld, a brown belt who liked to illustrate the physics of karate via live demonstrations to his classes at the Massachusetts Institute of Technology; Ronald McNair, future astronaut and fifth-degree black belt; and undergraduate Stephen Wilk. “The picture of a karate expert breaking stout slabs of wood and...
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CNN 10: The big stories of the day, explained in 10 minutes
Today on CNN 10, we visit South Africa 30 years after its first democratic elections, which marked the end of apartheid. Then, as Japan hits a record number of visitors, we explore how over tourism is impacting one of the country’s most iconic landmarks. All that and more on this episode of CNN 10.
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Polestar reports drivable EV with 10-minute 10-80% charging
Polestar has announced that prototype cells fitted to a version of its upcoming Polestar 5 flagship EV have been able to do a 10-80% charge in just 10 minutes. Polestar said last year that it would place the tech in a prototype Polestar 5 gaining 100 miles in 5 minutes—this project—by 2024, and it appears to have exceeded the original