ronl2k

joined 1 month ago
[–] ronl2k@lemmy.world 1 points 4 days ago

Not that they weren't used first, but rocks and clubs would not have allowed us to come down from the trees safely full-time. Pointy sticks allowed us to more safely injure and kill, while keeping claws and teeth at a distance.

[–] ronl2k@lemmy.world 3 points 5 days ago

There's a reason why fringe parties tend to remain on the fringe.

[–] ronl2k@lemmy.world 4 points 5 days ago (2 children)

Spears (pointy sticks) are the oldest weapon. They might have been created by non-humans. They helped us come down from the trees and vanquish large prey with teamwork.

[–] ronl2k@lemmy.world 1 points 6 days ago* (last edited 6 days ago)

Optical illusions are specifically designed to fool the eye. The foolery is useful to keep us from having to cognitively recalculate what we're visually used to seeing. Optical illusions aren't a human flaw; they're an overall benefit.

[–] ronl2k@lemmy.world 1 points 6 days ago* (last edited 6 days ago)

Incinerator toilets like the Incinolet don't need septic or water. They can also be used to burn small trash. But there are downsides:

  • Incinolet toilet: $3000
  • Per flush: 2000 watts (120v), 3500 watts (240v)
  • Incinerates at 1400°F
  • Cheapest liners: 7¢ each flush. 18" sheets of wax paper would be cheaper. 7¢ liners might be too small for explosive diarrhea splatter.
  • Incineration cycles can be interrupted and restarted.
  • Need a 5" vent hole pipe.
[–] ronl2k@lemmy.world 2 points 1 week ago (1 children)

The archaeological consensus remains that Neanderthals went extinct because they could not survive the last ice age.

[–] ronl2k@lemmy.world 2 points 1 week ago* (last edited 1 week ago) (3 children)

From your article:

Pre- and early Neanderthals seem to have continuously occupied only France, Spain, and Italy, although some appear to have moved out of this "core-area" to form temporary settlements eastward (without leaving Europe). Nonetheless, southwestern France has the highest density of sites for pre- and classic Neanderthals.

[–] ronl2k@lemmy.world 1 points 1 week ago (1 children)

The Chromium browser code is open source.

[–] ronl2k@lemmy.world 2 points 1 week ago (5 children)

Ice wasn’t everywhere.

The last ice age of 40,000 years ago covered everywhere Neanderthals lived, and no Neanderthals survived it. The last Neanderthals went extinct from exposure in a cave in Spain, which was affected by the last ice age.

No sewing equipment has ever been found with Neanderthals. They died of exposure in spite of being more cold-hardy than homo-sapiens, who by the last ice age had mastered sewing tighter-fitting clothing with leather and fur. That's why we survived the last ice age, and the Neanderthals did not.

[–] ronl2k@lemmy.world 1 points 1 week ago* (last edited 1 week ago)

Everything invented before the copper age is considered to be part of the stone age.

  • Stone age: ends 5000 BCE
  • Copper age: 3500 - 2300 BCE
  • Bronze age: (tin+copper alloy): begins 3300 BCE
  • Iron age: begins 1200 BCE
[–] ronl2k@lemmy.world 4 points 1 week ago (7 children)

Neanderthals went extinct because they couldn't survive the ice age of 40,000 years ago. Unlike homo-sapiens, they never learned to sew, so they couldn't make tighter-fitting fur clothing to keep warm. They mostly wore loose-fitting animal hides.

[–] ronl2k@lemmy.world 4 points 1 week ago* (last edited 1 week ago) (2 children)

According to Google, what we call The Stone Age also included the use of wood products. They were often used together.

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