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Science and facts
23 сент., 16:04
8 legs and 2 arms 😳That’s what a lot of people see the first time they look at a tarantula. It isn’t 10 legs. Tarantulas (and all spiders) have 8 walking legs. The two extra appendages at the front are pedipalps. They look like shorter, slightly thicker legs, which is why the count jumps to 10 at first glance.Pedipalps are not used for walking. They work more like hands: •sensing the environment •handling prey •in adult males, transferring sperm during matingFrom above, especially when the spider is spread out, those two front “arms” line up so neatly with the real legs that the illusion is almost perfect.So the correct count is: 8 legs + 2 pedipalps = the 10-legged look. Nature’s little optical trick.Science and facts💡Science and facts
23 сент., 11:01
On April 22, 2015, Chile’s Calbuco volcano suddenly erupted after more than four decades of dormancy.The eruption sent a towering column of ash and gas more than 15 kilometres into the atmosphere. During its explosive phases, an extraordinary phenomenon appeared inside the plume: volcanic lightning.Sometimes nicknamed a “dirty thunderstorm,” volcanic lightning forms when particles inside an eruption plume become electrically charged.As ash, rock fragments and ice particles collide, electrical charges separate within the plume. When the charge difference becomes large enough, it triggers powerful electrical discharges producing lightning inside and around the volcanic cloud.The Calbuco eruption became particularly famous for spectacular photographs of these lightning-filled ash clouds, captured by Chilean photographer Francisco Negroni.Science and facts💡
Science and facts
23 сент., 06:00
Sơn Đoòng in Vietnam, the world’s largest known cave passage, has an underground river, jungle and even clouds forming deep inside. A world beneath the surface.Science and facts💡Science and facts
22 сент., 16:00
Why do airliners cruise at 11 km and not higher or lower?Thin air saves fuel. Too thin, and the plane can’t fly. Physics picked the altitude.Here’s whyScience and facts💡Science and facts
22 сент., 11:03
A cloud's ability to float isn't about weight. It's about density. Even a cloud weighing around a million tonnes can remain airborne if it's less dense than the surrounding air. ☁️Science and facts💡Science and facts
22 сент., 06:02
Japan’s “human fridge,” a personal cooling booth designed to help people cool down during extreme summer heat.Science and facts💡Science and facts
21 сент., 16:02
How coffee is roasted and ground using century-old machines at this coffee shop in Sivas, Turkey.Science and facts💡Science and facts
21 сент., 11:04
This cashierless Dollar General in North Carolina uses AI-powered cameras to track purchases. Customers swipe a card to enter, grab what they need, and simply walk out while the system handles the payment automatically.Science and facts💡Science and facts
21 сент., 06:05
This is a feather star (Crinoidea), a marine animal closely related to sea stars and sea urchins. Its lineage dates back over 450 million years, long before the dinosaurs.Science and facts💡Science and facts
20 сент., 16:03
A complete human nervous system preserved as a single specimen, dissected by two medical students over 1,500 hours in 1925–1926. It is now on display at the Museum of Osteopathic Medicine in Kirksville, Missouri.Science and facts💡Science and facts
20 сент., 11:01
This guy 3D-printed a breathable honeycomb fan cover to cool his PCScience and facts💡Science and facts
20 сент., 06:03
How drones are used to safely tag whales for conservation research.Science and facts💡Science and facts
19 сент., 16:04
Crafting an ultra-miniature glass molecular structure with precision flameworking.Science and facts💡Science and facts
19 сент., 11:01
Glass is see-through to your eyes, but not to a thermal camera.Thermal cameras detect long-wave infrared (heat). Ordinary glass absorbs those wavelengths instead of letting them pass, so it looks opaque, and often reflects your own heat back at you.That’s why thermal lenses aren’t made of glass.Science and facts💡Science and facts
19 сент., 06:04
A traditional Irish shillelagh, a blackthorn walking stick that could also be used for self-defense.Science and facts💡Science and facts
18 сент., 16:03
How mussel farming works at sea, from harvesting and sorting to re-seeding the next batch.Science and facts💡Science and facts
18 сент., 11:04
Ever seen a mummy from Papua, Indonesia?These aren’t Egyptian mummies wrapped in linen. In the Baliem Valley around Wamena (in Highland Papua, on the Indonesian side of New Guinea ) the Dani (Hubula) people used to preserve respected leaders by smoking the body over a low fire inside a honai for weeks, then rubbing it with pig fat. The result is a blackened, dried figure still sitting in a crouched position.These mummies aren’t souvenirs. For the community they are living ancestors: guardians of the village, sources of blessing, and a link to who they are. Only war leaders or chiefs received this honor. The practice has mostly stopped, but a few centuries-old mummies are still cared for by their descendants. If you visit, be respectful. Don’t touch. Photos are usually allowed with permission and a small contribution toward their upkeep.Science and facts💡Science and facts
18 сент., 06:02
A traditional technique practiced by the young shepherds of the Banna tribe of Ethiopia.They walk on stilts to watch over their cattle among the tall grass, move through swampy areas, and protect themselves from snakes and predators like lions and leopards.Science and facts💡Science and facts
17 сент., 16:01
How long things actually take to disappear.Some everyday items break down in weeks, while others can remain in the environment for centuries. A banana peel may decompose in a few weeks, but a plastic bottle can persist for hundreds of years.These estimates are a reminder that what we throw away doesn’t simply vanish. It can remain part of the environment long after we’re gone.Science and facts💡
Science and facts
17 сент., 11:02
Most “wasabi” you’ve ever eaten wasn’t wasabi. This is the real plant. Those broad, glossy, heart-shaped leaves belong to Eutrema japonicum. The famous green paste doesn’t come from the leaves, it comes from the slow-growing rhizome hidden beneath them.Real wasabi is rare, perishable, and expensive. That’s why so much of what gets served worldwide is actually dyed horseradish. This is what the genuine thing looks like before it ever reaches a grater.Science and facts💡
