1026
The scale of Dimorphos
The 160-m diameter Dimorphos asteroid compared to Rome's Colosseum. NASA's DART spacecraft collided with Dimorphos last night
[source, read more: buff.ly/3SCJyog]
1027
Warka Water structures consist of a bamboo frame supporting a mesh polyester material inside. Through rain and condensation they can collect 100 liters of clean drinking water a day for rural communities in the developing world [read more, full video: buff.ly/3sZ4icH]
1028
Take your time to understand exactly how differentiation is defined using the concept of limits [source: buff.ly/2rZ2cQa]
1029
The devil's flower mantis
[read more: buff.ly/3eXvlU8]
[📹 Adrian Kozakiewicz: buff.ly/3Lz9EGd]
1030
This animation by the @TheOceanCleanup shows a vision of a future in which the Great Pacific Garbage Patch (3 times the size of France & containing up to 100,000,000 kg of plastic waste) is consigned to history books [full video: buff.ly/3qSSQ3s]
1031
Designer Joe Doucet invented a flat wind turbine that can be incorporated into walls, rather than harnessing the wind with huge blades suspended on tall towers. The turbine wall is made up of a grid of square panes that spin along 25 axes [read more: buff.ly/3G4e3xW]
1032
Phelsuma is a large genus of geckos in the family Gekkonidae. Species in the genus Phelsuma are commonly referred to as day geckos
[read more: buff.ly/3UMULUN]
[📹 Maya Rosal: buff.ly/3UMULUN]
1033
Why is A4 paper called A4? 'Cause of #Math
A4 is 1/2 an A3, 1/4 of A2 & it’s 1/16 of A0 which has an area of 1 m² (but it isn’t a square).
They all have an aspect ratio a/b = √2, so each one can be scaled to other sizes without being distorted
[more: buff.ly/3TdKWOE]
1034
Gannets can dive from a height of 30 m (100 ft), achieving speeds of 100 km/h (60 mph) as they strike the water
[read more: buff.ly/339A2UV]
[📹 Lisa Button, captured in 2020 in Newfoundland, Canada: buff.ly/33kzfAV]
1035
There are occasions when dolphin pods gather with other pods to form superpods of 100 or even several thousand dolphins. This superpod was observed in Laguna Beach, California in March 2020
[📹 Chuck Patterson: buff.ly/3S4aqwS]
1036
This now famous photo by Giorgia Hofer shows the position and the changing phases of the Moon above the peaks of the Cridola Group, in the Italian Alps, during a lunar month, called synodic month [author's site: giorgiahoferphotography.com]
1037
A standing wave generated at the Numerical Test Tank at the University of São Paulo, Brazil
[Source, Reddit user u/caiocgrweb: buff.ly/3M1xee2]
1038
In 2019, a team of researchers from the University of Maine revealed the largest 3D printed part in the world (in a single piece): a boat, the 3Dirigo, 7.62 meters long, with a weight of 2.2 tons [read more: buff.ly/2PBx6b9]
1039
The story of Dennis Ritchie, the man who invented C, co-created Unix, and is largely regarded as effectively influencing every software system we use on a daily basis. His death was largely ignored, overshadowed by Steve Jobs' death, one week before buff.ly/2pauBB2
1040
This video by traditional carpenter Dylan Iwakuni shows some of the fascinating traditional joineries discovered while taking apart this 100 year old Japanese house, literally built without using a single nail [full video, HD: buff.ly/3A3pN2W]
1041
A Great Argus pheasant tries to charm the female bird with courtship dance
[source: buff.ly/3D1vy2u]
[read more: buff.ly/3ABSq64]
1042
This shot comes from photographer Sean Scott off a remote West Australian beach. He was flying his drone over a large school of bait fish that was attracting whaler sharks and managed to get this shot with two sharks inside a wave [source, read more: buff.ly/2IPnx1P]
1043
Endoxyla cinereus, aka the giant wood moth, is the heaviest moth in the world; weighing up to 30 g. Its wingspan is approximately 23 cm. It is found in Australia (Queensland, New South Wales) and New Zealand
[read more: buff.ly/3igPdU7]
[📷 buff.ly/3Vznbl5]
1044
The ocean sunfish is the world's heaviest known bony fish: it reaches up to 2,300 kg of weight & 4.2 meters of size across the fins buff.ly/2p3FDYk [video: buff.ly/2PTq3fA]
1045
Allopreening is the mutual preening between two or more birds, practiced to reduce instinctive aggression when birds are in close contact. During breeding, allopreening helps strengthen the social bonds
[📹 Hardik Rathod: buff.ly/3XAetVh]
1046
A large, fully developed avalanche can weigh as much as a million tons and travel faster than 320 km/h (200 mph). This one was filmed on Tian Shan mountains
[read more: buff.ly/3SJlGie]
[Harry Shimmin, full story: buff.ly/3RmqESG]
1047
Sometimes simple tools make sophisticated technologies look pleonastic: this is how you can smoothly display different materials in interior design without 3D rendering [source: buff.ly/3wepL4p]
1048
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]
1049
A quite alternative way of typing on a keyboard
[📹 rileyandrichy: buff.ly/3Yuw3L1]
[read more: buff.ly/3V2fLG5]
1050
The chemical traffic light is a color-changing redox reaction typically using glucose, sodium hydroxide, indigo carmine (dye), and water.
[📹 techience: buff.ly/3vn3MZk]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links