Nov. 29, 1803: The birth of Christian Doppler

Born Nov. 29, 1803, in Salzburg, Austria, Christian Doppler studied mathematics, physics, and astronomy at the University of Vienna. After struggling to secure an academic post and working as a bookkeeper in a cotton factory for a year and a half, Doppler took a position as secondary school teacher in […]

Newly Found Organics in Enceladus’ Plumes

Dramatic plumes, both large and small, spray water ice out from many locations along the famed tiger stripes near the south pole of Saturn’s moon Enceladus in this image released on Feb. 23, 2010. A study published in October 2025 analyzed data from NASA’s Cassini mission and found evidence of […]

An analysis of Google TPU v6e vs AMD MI300X vs Nvidia H100/B200: Nvidia achieves a ~5x tokens-per-dollar advantage over TPU v6e and 2x advantage over MI300X (@artificialanlys)

@artificialanlys: An analysis of Google TPU v6e vs AMD MI300X vs Nvidia H100/B200: Nvidia achieves a ~5x tokens-per-dollar advantage over TPU v6e and 2x advantage over MI300X  —  Google TPU v6e vs AMD MI300X vs NVIDIA H100/B200: Artificial Analysis’ Hardware Benchmarking shows NVIDIA achieving a ~5x tokens-per-dollar advantage over TPU […]

Michael’s Miscellany: Observe the Helix Nebula

One of your nighttime sky targets for the next month or so should be the Helix Nebula in the constellation Aquarius the Water-bearer. Some observers call it the Sunflower Nebula, but you won’t hear that much anymore. And ever since the Lord of the Rings movies became popular, it’s gotten the moniker “The Eye […]