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The Intel 4004, the first computer on a chip, turns 50

The first Intel 4004 chip.  Intel  View 12 Images    By David Szondy 2021 Nov 19 – This month marks the 50th anniversary of Intel’s 4004 processor, the first commercially available microprocessor built on a single chip. Originally designed for a Japanese desk calculator, …

Why Is Space So Cold if the Sun Is So Hot?

We live in a universe of extremes.  Image courtesy NASA.Gov – Popular Science  By Donavyn Coffey – If the sun is hot how is outer space cold ? — Jacoby Brissett (@JBrissett12), 2019 Jul 10 – Why is space so cold if the …

Santa Fe Trail 200th Anniversary

Santa Fe Trail 1821-2021 Illustration by Ronald Kil Home About the Artists Ronald Kil Doug Holdread Santa Fe Trail 200 In 1821, the Santa Fe Trail was opened as a commercial route between Missouri and New Mexico by William Becknell and his party …

How many satellites are orbiting Earth?

Thousands of the satellites orbiting Earth are small – like this cubical satellite seen here being released from the International Space Station. NASA, CC BY-NC – By Supriya Chakrabarti, Professor of Physics, University of Massachusetts Lowell 2021 Sep 17 – – It seems …