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Bitcoin surges near $40K amid rumors that Amazon will accept it for payments Good news for HODLers Story byThomas Macaulay Thomas is a senior reporter at TNW. He covers European tech, with a focus on AI, cybersecurity, and government policy.Thomas is a senior reporter at TNW. He covers European tech, with a focus on AI, cybersecurity, and government policy. Get the TNW newsletter Get the most important tech news in your inbox each week....

Bkkeepr.com: update your digital bookshelf with Twitter Story byErnst-Jan Pfauth Ernst-Jan Pfauth is the former Editor in Chief of Internet at NRC Handelsblad, as well as an acclaimed technology author and columnist. He a(show all)Ernst-Jan Pfauth is the former Editor in Chief of Internet at NRC Handelsblad, as well as an acclaimed technology author and columnist. He also served as The Next Web’s blog’s first blogger and Editor in Chief, back in 2008....

Bkkeepr.com: update your digital bookshelf with Twitter Story byErnst-Jan Pfauth Ernst-Jan Pfauth is the former Editor in Chief of Internet at NRC Handelsblad, as well as an acclaimed technology author and columnist. He a(show all)Ernst-Jan Pfauth is the former Editor in Chief of Internet at NRC Handelsblad, as well as an acclaimed technology author and columnist. He also served as The Next Web’s blog’s first blogger and Editor in Chief, back in 2008....

Black holes: what we think we know, we don’t Our understanding of black holes has changed over time What is a black hole? The notion of black hole reflected in popular science hinges on the idea of event horizon — this is when the velocity needed to escape the gravitational pull of the black hole exceeds the speed of light. Whatever falls into the event horizon is lost forever. The Schwarzschild radius is the radius of the event horizon,and is proportional to the mass of the black hole....

Black holes: what we think we know, we don’t Our understanding of black holes has changed over time What is a black hole? The notion of black hole reflected in popular science hinges on the idea of event horizon — this is when the velocity needed to escape the gravitational pull of the black hole exceeds the speed of light. Whatever falls into the event horizon is lost forever. The Schwarzschild radius is the radius of the event horizon,and is proportional to the mass of the black hole....