1426
When it gets hot inside the nest, bees use their wings as fans to draw hot air out and allow cooler air to move in. This is how Harvard scientists explained the way bees self-organize into living ventilating units [read more: buff.ly/2WIFBSG]
1427
This is the difference between winter/snow tires, all-season tires and summer tires by evaluating acceleration, stopping and cornering capabilities — using an ice rink as our test track
[source and full video: buff.ly/2HTWaqT]
1428
A visualization of two physical models of gravity: Newtonian Gravity and Einstein's General Relativity
[source, by eyytee. Full video with explanation: buff.ly/2G9L7sq]
1429
When roosters open their beaks fully, their external auditory canals completely closed off. Basically, roosters have built in earplugs. This helps prevent them from damaging their hearing when they crow, even up to 140 dB
[read more: buff.ly/2PLrZHs]
1430
This time lapse video shows the lava flow engulfing a parked car on the streets of Puna, Hawaii as a consequence of the eruption of the Kilauea volcano on May 7, 2018
[source, video: buff.ly/2rsiaOC]
1431
These ultra-black fish are equipped with specialised skin that allows them to evade detection while hunting or hiding in the dark. Their skin can absorb 99.95% of all photons
[read more: buff.ly/39bW2xj]
1432
Each of the rings in the image are circles, even though they certainly do not appear to be. This image by @AkiyoshiKitaoka is a visualization of the so called popple illusion
[read more: ow.ly/ob7l30nylcj, buff.ly/2FO2dYm]
1433
What happened when a Space Shuttle fired its thrusters on orbit, outside and inside view [source: buff.ly/32qMrBt]
1434
Fireflies produce a "cold light", with no infrared or ultraviolet frequencies, with wavelengths from 510 to 670 nanometers to attract mates or prey
[read more: buff.ly/3GArNQ8]
[📹 Scott Radke: buff.ly/3IMkmaM]
1435
While a toy like this homemade one appears to be precariously balanced, it's designed so that the center of gravity is below the pivot point -> restoring torque -> stable equilibrium
[read more: buff.ly/33h1q3o
[source: buff.ly/3EUggLl]
1436
The observable universe is 93 billion light-years across (or ~8.8×10²³ kilometers).
So far, no human has ventured farther than 1.3 light-seconds from Earth
[read more: buff.ly/2tWEVP8 or more: buff.ly/30rXD2d]
[📹 ESA: buff.ly/2FMxM9y]
1437
Manufacturing ropes is an old, north German activity that is still practiced today. Tugboats use this kind of huge ropes to pull large ships. This is where traditional handwork merge with industrial production
[full video (DE), NDR Doku: buff.ly/3dKBRtp]
1438
In 2019, Victor Vescovo descended nearly 11 km to the deepest place in the ocean - the Pacific Ocean's Mariana Trench. While breaking the record for the deepest ever dive, he found a plastic bag and sweet wrappers [read more: buff.ly/2LBvLQT]
1439
The fruit Monstera Deliciosa causes severe throat & skin irritation due to oxalic acid unless 100% ripe. Once the green outer scales fall off it's safe to eat and tastes like a mix of pineapple, banana & coconut. Its name literally means Delicious Monster ow.ly/Wz4J30nAIni
1440
This is what you see when you fly through the Sun’s upper atmosphere.
The "view from the window" of the Parker Solar Probe, which was the first to complete the sampling of particles and magnetic fields there
[read more: buff.ly/3ebMUQx]
1441
The life cycle of a leaf
[video: buff.ly/2AygXv2]
[📷 Rob Herr: buff.ly/2Ty4vlQ]
1442
Moon and Venus conjunction behind Christ the Redeemer on the Corcovado mountain, Rio de Janeiro on September 8, 2013
[📹 Josselin Desmars: buff.ly/3EzGgOu]
1443
In this phenomenal capture by Deven Stross you see nacreous clouds over the NASA Radome at McMurdo Station on Ross Island in Antarctica. Also known as polar stratospheric clouds they form in the winter polar stratosphere at altitudes of 15,000–25,000 m buff.ly/2wkLBry
1444
Thanks to a close look at wings in nature, the FESTO's BionicSwifts are agile, nimble and can even fly loops and tight turns. The artificial swallows can move in a coordinated and autonomous manner by interacting with a radio-based indoor GPS [read more: buff.ly/3cK5fQT]
1445
There's a nice natural geological formation in Iceland called the 'Elephant rock' for a precise reason [read more: bit.ly/2kBhRAH]
1446
This is what the inside of a musical instrument looks like [source, read more: bit.ly/1F13nZW]
1447
Explaining the popular internet phenomenon of "The Dress" with the help of some graphical tools
[source: buff.ly/3ekrD71]
[read more: buff.ly/2prohRb]
1448
This is what a bear looks like without hair. Dolores, a spectacled bear at the Leipzig Zoo in Germany in 2009 had this condition caused by a wrong diet. When the diet was corrected the fur grew back completely within 4 months
ow.ly/vnry30nBZDv
ow.ly/elEY30nBZHc
1449
The life cycle of a monarch butterfly
[video: buff.ly/3Cd8EmW]
1450
«In the grand scheme of things, we're all pretty much blind and deaf»
[source, Abstruse Goose: abstrusegoose.com/421]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links