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Today in History | Journal-news | journal-news.net
Today is Tuesday, April 23, the 114th day of 2024. There are 252 days left in the year.
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Today in History | Journal-news | journal-news.net
... ** FILE ** Newly elected Pope Benedict XVI, the former Cardinal Joseph Ratzinger of Germany, waves to the crowd from the central balcony...
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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...