APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss Great Debates The Scale of the Universe (1920); Curtis, Shapley Although the `Great Debate’ is important to different people for different reasons, it is a clear example of humanity once again striving to find its place within theContinue Reading
APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss The Scale of the Universe What the Great Debate was, how it was resolved, and why it was important. A subjective abstract in three short paragraphs. Published version of the ‘Great Debate.’ This is a reprint of theContinue Reading
5 min read NASA Unveils Winning Designs for Mars Space Food Systems Challenge NASA announced the winners of the Deep Space Food Challenge: Mars to Table Thursday, with the top $300,000 prize being awarded to Chinyere Ukeje of Philadelphia, Pa. for the Adaptive Nourishment Infrastructure (ANI) food system concept. ThisContinue Reading
APOD Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss to Internet newsgroup: sci.physicsAnswers posted by Matt McIrvin of Harvard University, last updated 02-FEB-1995. Text in this file is NOT copyrighted by RJN. 1. What is a black hole, really? In 1916, when general relativity was new, KarlContinue Reading
SpaceX’s biggest AI advantage are the months and years competitors lose waiting. Colossus was built in 122 days. Now the strategy is power waiting for chips—and that changes when tens and hundreds of billions of dollars of revenue can begin. SpaceX owns xAI. Colossus, Grok and AI infrastructure are most of the revenue for theContinue Reading
During NASA’s SpaceX Crew‑13 mission aboard the International Space Station, astronauts will support a series of biomedical and human performance investigations, including a new collaborative effort to study how spaceflight affects blood flow and clotting. NASA also is testing crew members’ manual piloting skills, evaluating methods to counter vision and brain changes, gathering essential healthContinue Reading
Sponsored by Coilcraft. For battery-powered applications, improving the efficiency of the entire power supply circuit extends battery life, and inductor efficiency is often a major design consideration. Careful consideration of inductor efficiency can mean the difference between having your battery work when you need it and having to stop inContinue Reading
ROHM Semiconductor’s SiC MOSFETs are being used in the electric powertrain of BMW’s Neue Klasse, the Gen 6 platform for the automaker’s electric vehicles. ROHM did not name the device family or the voltage class, and didn’t say which Tier 1 supplier builds the power electronics around the chips. TheContinue Reading
I’ve followed Matu Buiatti’s work for a while now, and he’s one of those creatives who really has a thorough love of art and the life around him. He pays attention to the small details, and it shows in how he approaches every single project. We saw that earlier thisContinue Reading
This story was originally published by ProPublica. In November 2021, the Smithsonian’s National Museum of American History opened an exhibit called “The Electric Dr. Franklin,” describing “Benjamin Franklin’s pioneering contributions to electrical science.” The exhibit explained that, prior to becoming an abolitionist, he had enslaved people in his household. “BenjaminContinue Reading
This story is the second of a two-part collaboration between Truthdig and the Texas Observer. Read the first part here. In the late spring of 2009, Andrew Collins learned that an oil and gas drilling waste landfarm, operated by a Cleburne, Texas, company called Excel Environmental Services, was to beContinue Reading
“The History of Concrete” is one of the year’s most fluid documentaries. This intriguing, often amusing reorientation of how we see the material world features, and is directed by, the inimitable John Wilson (HBO’s “How To With John Wilson”) as he traverses New York and speaks with its denizens. TheContinue Reading
Target’s NCAA collection includes licensed apparel and accessories for more than 50 schools. Here are 11 items that show the range of the assortment., Read More NBC NewsContinue Reading