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Women like Sabrina Gonzalez Pasterski, whose love of science and technology took flight, quite literally, when she first rode in an airplane at age 9 and dreamed of creating spacecraft. At 10, she rebuilt an airplane engine at her Chicago home. At 12, she built an entire airplane. At 14, she took it on a test flight.

Now, Pasterski is one of the leading theoretical physicists in the world. Her work has been cited by the great theorist Stephen Hawking. She has degrees from Harvard and MIT and is a principal investigator at the Princeton Center for Theoretical Science. She studies such advanced topics as quantum gravity, black holes, and space-time.

She has never had a social media account but posts links to her talks and papers at PhysicsGirl.com. A “proud, first-generation Cuban-American,” she is a leading advocate of STEM science education for girls, especially girls of color.



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Women like Sabrina Gonzalez Pasterski, whose love of science and technology took flight, quite literally, when she first rode in an airplane at age 9 and dreamed of creating spacecraft. At 10, she rebuilt an airplane engine at her Chicago home. At 12, she built an entire airplane. At 14, she took it on a test flight.

Now, Pasterski is one of the leading theoretical physicists in the world. Her work has been cited by the great theorist Stephen Hawking. She has degrees from Harvard and MIT and is a principal investigator at the Princeton Center for Theoretical Science. She studies such advanced topics as quantum gravity, black holes, and space-time.

She has never had a social media account but posts links to her talks and papers at PhysicsGirl.com. A “proud, first-generation Cuban-American,” she is a leading advocate of STEM science education for girls, especially girls of color.

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How to Use Bitcoin?

n the U.S. people generally use Bitcoin as an alternative investment, helping diversify a portfolio apart from stocks and bonds. You can also use Bitcoin to make purchases, but the number of vendors that accept the cryptocurrency is still limited. Big companies that accept Bitcoin include Overstock, AT&T and Twitch. You may also find that some small local retailers or certain websites take Bitcoin, but you’ll have to do some digging. That said, PayPal has announced that it will enable cryptocurrency as a funding source for purchases this year, financing purchases by automatically converting crypto holdings to fiat currency for users. “They have 346 million users and they’re connected to 26 million merchants,” says Spencer Montgomery, founder of Uinta Crypto Consulting. “It’s huge.”

Should I buy bitcoin?

“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.

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