1051
How a scientist discovered on Google Earth that cows align themselves North/South when grazing or resting. And how follow up studies revealed deer do this as well
[read more: ow.ly/uZxr30nUXHK]
1052
A lightbeam book's lightbeam is not a real light. It's literally a cardboard cutout inserted behind a see-through page, but it frames a nice optical illusion, not only for kids
[source, miterapiaconximena: buff.ly/3tTDmh2]
1053
Noctiluca scintillans are known for their ability to bioluminesce, giving water (and sometimes sand) a bright blue glow at night. This clip is possibly one of the best illustrations [read more: buff.ly/2pC9GUd] [Louis Cole: buff.ly/32QO3Y8]
1054
This tornado (later rated EF2) captured by meteorologist and storm chaser @ReedTimmerAccu north of Wray, Colorado in 2016, is still one of the best examples of an extreme weather event as seen up close
[full video, HD: buff.ly/3F3QwLO]
1055
There are many ways to get across the point of distortion in the Mercator map. Here's a planisphere indicating a distance across Africa and another distance across Russia and things don't add up
[source, read more: buff.ly/3HGVLme]
1056
In this famous clip from his even more famous TV program Cosmos, Carl Sagan explains the fourth dimension of space-time, starting with another popular science story: Edwin A. Abbott’s Flatland
[full video: buff.ly/3nmrx0W]
1057
The Great Lake system profile vs the Atlantic Ocean vs Lake Baikal
[source: buff.ly/3q0BrGl]
[Great Lakes only: ow.ly/v5O430nURHW]
1058
This is called 'shimmering'. Giant bees produce these waves as a defensive mechanism, repelling wasps & hornets that get too close to the nests.
[read more: buff.ly/3i7TlFW]
[full video: buff.ly/3kuSQ6X]
1059
This is an active ball joint mechanism enhanced by interactions of spherical gears with three rotational degrees of freedom without slippage. A concept with a potential for many applications in robotics & mechanics
[full paper: buff.ly/3AARcIY]
1060
The REAL Krebs cycle
[source, by 'Trust me, I'm a biologist': buff.ly/3JPRXAS]
1061
How to turn a standard PS4 controller into a brilliant dual shock joystick for a better gaming experience, using only 3D printed parts
[read more: thingiverse.com/thing:4618312]
1062
Created in 2005 by Ryota Kanai, the so called healing grid has less regular pattern at the peripheral parts. If you stare at the center, the irregularities start to heal themselves because your brain strongly prefers to see regular patterns
[source: buff.ly/3tZVmol]
1063
What happens if a star gets too close to a black hole? The black hole can rip it apart--but how? It's not the high gravitational attraction itself that's the problem--it's the difference in gravitational pull across the star that creates the destruction buff.ly/3gHHH1q
1064
Rotating, inscribed circles produce Fibonacci spirals along the envelope curve
[more: buff.ly/2XBEZ1x]
[source of the gif: buff.ly/3JXQWXM]
1065
Meet Ameca, the popular robot by Engineered Arts that has an array of human-like facial expressions in this interview by CNET to CEO Morgan Roe
[full story: buff.ly/3FdaT9v]
1066
This video by Tony Whitfield shows Yoann Bourgeois performance: The Mechanics of History, at the Panthéon in Paris on Oct 14, 2017. Also a visual explanation of how potential & kinetic energy are exchanged on a trampoline
[HD: buff.ly/3a34Tpz]
1067
Watch the stunning aerial view of the Nebelhorn Peak in Germany like you have never seen it before: through an Eagle's Eyes
[full video, HD, Red Bull: buff.ly/2G7Ns4H]
1068
The snow leopard is a felid native to the mountain ranges of Central and South Asia. Its global population is estimated in fewer than 10,000 mature individuals and is expected to decline about 10% by 2040
[📹 Muhammad Osama: buff.ly/3hVvgSp]
1069
We saw dust devils appear everywhere in clips posted in recent years (even on Mars) but this one is quite remarkable, even capable of forming in a room & through an open window
[read more: buff.ly/3BHlyYi]
[video: buff.ly/3FYsDGC]
1070
This is the (logarithmic) timeline of an expanding universe. We live at the 3rd line from the left and all stars will disappear in 10¹⁴ years (4th line). Then there will be 10¹⁰⁰ year of just black holes and then, the Dark Era
[read more: buff.ly/3f37dfv]
1071
When marine biologist Roger Hanlon caught this creature on camera, he said he screamed bloody murder. And no wonder. A superb visualization of how chromatophores allow an octopus to blend in with the backdrops
[source, read more: buff.ly/30m3fL9]
1072
South Korean firm ETI is offering a novel roller barrier system, designed to reduce crash risks. The rollers are made from an ethyl vinyl acetate (EVA) material that is highly shock absorbent, a key design feature
[read more: buff.ly/3TSGm7V]
1073
A start of an incredible journey
Turtle hatchlings responding the sea call on a Florida beach.
[📹 NatGeo Wild: buff.ly/3UX4x6w]
1074
Venus flytraps recognize animal prey via mechano-sensor stimulation only at the second touch, to avoid energy dissipation on non-prey items like falling leaves. You could even say they can count [read more, clip by Chris Thorogood: buff.ly/3eZWbbc]
1075
This is @NASA_Orion approaching the Moon few minutes ago before the loss of signal.
Watch live: nasa.gov/nasalive
#Artemis1
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links