It appears that an unidentified species of human has mastered obsidian, which was previously thought to have only been possible in the Stone Age. Obsidian is without a doubt one of the most badass materials ever imagined, having been forged in magma and having the ability to produce the sharpest blades on Earth (there's a reason George RR Martin chose it as the weapon of … [Read more...] about 1.2-Million-Year-Old Obsidian Axe Factory Found In Ethiopia
The National Geographic Travel Photo Contest: Eye-Opening Entries
The National Geographic 2019 Travel Photo Contest has been open since March 18, and submissions will be accepted until May 3, 2019, at noon Eastern Standard Time. Every week, the publication has revealed a selection of entries from the previous week. A split-shot capture of an adolescent humpback whale, a candid moment of a mother loon feeding her chicks, and squiggles of … [Read more...] about The National Geographic Travel Photo Contest: Eye-Opening Entries
Disturbing MRI Images Reveal What Happens During Pregnancy Scans — And Why They’re Rarely Used
Unusual and unsettling images circulating online have sparked curiosity about how medical scans work during pregnancy — especially when it comes to MRI technology. While these images may look alarming at first glance, they actually reveal something important about how doctors study fetal development and why certain imaging methods are used more cautiously. What the Images … [Read more...] about Disturbing MRI Images Reveal What Happens During Pregnancy Scans — And Why They’re Rarely Used
When a Navy Fighter Jet Approaches the Speed of Sound, “Shockwave Lines” Are Visible
A remarkable close-up photograph of a plane producing "shockwave lines" as it approached the speed of sound was taken by photographer Camden Thrasher while he was documenting a display of US Navy fighter jets. The photo of a McDonnell Douglas F/A-18 Hornet, the supersonic multirole combat jet first introduced in the US Navy in 1984, was taken by the motorsport and aviation … [Read more...] about When a Navy Fighter Jet Approaches the Speed of Sound, “Shockwave Lines” Are Visible
Cows Painted To Look Like Zebras Repel Flies Better Than Plain-Coated Cows
A cow's days of fly-shooting and hoof-stomping may be coming to an end. According to researchers, all it takes to repel pests is a fresh coat of paint. According to a new study published in PLOS One, black cows painted to look like zebras are nearly 50% less likely to suffer from pesky horse fly bites. Six cows were given black-and-white stripes, black stripes, and no … [Read more...] about Cows Painted To Look Like Zebras Repel Flies Better Than Plain-Coated Cows