60,000-year-old-ostrich-eggshell-engravings-reveal-a-surprisingly-sophisticated-human-mind

More than 60,000 years ago, humans in southern Africa were engraving ostrich eggshells with intricate geometric patterns that appear far more organized than previously realized. Researchers found recurring grids, parallel lines, right angles, and repeated shapes, suggesting the designs followed deliberate rules rather than being improvised. The engravers may evenContinue Reading

apod:-2026-august-9-–-contemplating-the-sun

APOD Science APOD APOD: 2026 August 9 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss   APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by aContinue Reading

a-shot-of-carbon-dioxide-rewires-how-cement-sets

One September day, it started to snow inside MIT’s Pierce Laboratory.  Researchers depressurized a tank of liquid carbon dioxide (CO2), instantly freezing it and releasing solid flakes. These were blended into cement paste and pressed into discs roughly the size of a dime, each sealed with a thin layer ofContinue Reading

for-most-us-drivers,-evs-offer-emissions-benefits-and-cost-savings

Despite regional variability in climate, electricity sources, congestion, and the wide variation in individual driving patterns, electric vehicles generate less greenhouse gas emissions and do not cost more than comparable gas-powered vehicles for drivers and vehicle fleet owners in most parts of the United States, according to a new studyContinue Reading