976
Flowers of passiflora incarnata have five bluish-white petals. They exhibit a white and purple corona, a quite complex structure of fine appendages between the petals and stamens. The large flower is typically arranged in a ring above the petals and sepals buff.ly/2IEfeFe
977
Crows are widely regarded as some of the smartest animals on the planet. In this clip narrated by Sir David Attenborough, a wild crow in Japan is seen dropping nuts at a crosswalk, providing it a safer opportunity to retrieve the food
[full video: buff.ly/31xLEhh]
978
A 2016 study found that sea turtles rest for ~11 hours per day, using just half the amount of oxygen that they use during foraging. Watch one taking a nap in this clip by Drew Sulock
[read more: buff.ly/3cCm6nV]
[video: buff.ly/3xdY24n]
979
A candle snuffer is a clever and extremely simple mechanical device that can automatically extinguish a candle at a certain time or in case one forgets to blow it out. This is a 1841 model
[📹 Rescue & Restore Shorts: buff.ly/3jyIKoc]
980
Have you ever seen a 9-gigapixel map of the Milky Way galaxy? This jaw-dropping zoomable image by ESO contains ~84 million stars and it's unlike anything you’ve ever seen. The original image has 24.6 gigabytes [image: buff.ly/R1dS5X] [read more: buff.ly/3D9FR1Y]
981
When first hatched, tawny frogmouth chicks have thick, white and fluffy plumage, weighing between 17-19 grams, looking like balls with a mouth
[source read more, Bonorong Wildlife Sanctuary: buff.ly/3xmjILB]
982
World Cup balls getting charged.
They contain Ultra-wideband (UWB) sensors and Inertial measurement unit (IMU) sensors to obtain the position of the ball and the granular movement in three dimensions
[read more: buff.ly/3tQcpeh]
983
This is what a transition between turbojet and ramjet more looks like.
[read more: buff.ly/3WhhqZz]
984
Asteroid impact comparison
[original video, MetaBallStudios: buff.ly/3XacAxs]
985
This is the best image we have of what we call an atom (OR, in quantum physics terms, of its wave function) [source, read more: buff.ly/2npcmWT]
986
Cellulo explores how small, inexpensive robots can leverage autonomy to help kids learn with their hands [read more: buff.ly/2FVk7JC]
987
This is the famous design of an ambiguous object illusion by Kokichi Sugihara, the inventor of this art form. A clever combination of reflection, perspective, and viewing angle produce this striking illusion buff.ly/2P6DEMy [explanation: ow.ly/lSY830nmncA]
988
Bottled water cost is astounding when you think of how much you’re paying for production and distribution compared to the water itself. It’s even more shocking when you consider the detrimental effects it has on the environment
[source, read more: buff.ly/2LvDWvx]
989
Thanks to its intelligent kinematics, FESTO's BionicFlyFox can master the agile flying manoeuvres of its natural role model
[find out more: buff.ly/2I8kWPL]
990
Ever imagined how big black holes can be? They are true monsters of the cosmos: in this video Alvaro Gracia-Montoya made a comparison of their size
[full video, HD: buff.ly/3JS2jkc]
991
One of the possible cosmological solutions is that our universe could be the mirror image of an antimatter universe extending backwards in time before the Big Bang. Physicists devised a model positing the existence of an “antiuniverse” paired to our own: ow.ly/gs7Z30ncA44
992
In the XIX century, automatic candle snuffers like this one ensured you would not waste them, having enough candle for the following morning. You can by one here: buff.ly/3p3hYkC [read more about candle snuffers: buff.ly/3cSuL6Y]
993
Originating in Australia, Boulder Opal is composed of two parts: the host rock, which is usually an ironstone or sandstone, and a precious opal. It’s formed when the silica compound has water in it, penetrates the rock, and deposits opal in the cracks ow.ly/quaU50wJUK6
994
A tussle for supremacy between left and right halves of your brain is why yellow dots disappear, staring at the green one [source, read more: bit.ly/2sgU0ZK]
995
When bison returned to Badlands National Park after nearly 150 years. In October 2019 they celebrated the park opening up 22,000 acres of new bison range and almost 1,200 bison now have 80,000 acres to graze, after being absent since 1870 [read more: buff.ly/2MhVvQT]
996
Whale shark eating
[whale sharks' diet: buff.ly/2LHYCCd]
[📹 BBC America: buff.ly/3W5GG55]
997
54 years ago #Today, one of the most famous images ever taken was snapped from the orbit of the Moon. Now known as "Earthrise", with modern digital technology, the iconic image -- originally in black and white -- has been remastered ow.ly/Hir130n5JpX
998
There is a world of difference between the cars we vehicles we drive today, and the vehicles our parents drove. One of the major differences, aside from aesthetics is: safety. This is a visualization of the gap
[full video, read more: buff.ly/2U2KxEf]
999
A bacterial flagellum is driven by a rotary engine made up of protein, and is powered by the flow of protons across the bacterial cell membrane. It rotates at ~1,000 rpm, but the rotor alone can rotate at up to 17,000 rpm
[📹 smart-biology.com]
1000
A fire can be spotted burning inside a tree: this is typically due to a lightning hitting the tree
[read more: buff.ly/3Ulfa3c]
[📹 Glenn Ratcliff: buff.ly/3qWap2Q]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links