801
This Japanese technique to fold shirts in 2 seconds seems to find a secret topology hidden inside clothes
[full video, HD, DaveHax: buff.ly/37sSeXf]
802
Mauna Kea is a dormant volcano, the highest point in the state of Hawaii at 4,207 m above sea level. But most of the mountain is underwater; when measured from its oceanic base, Mauna Kea is over 10,000 m tall and is the tallest mountain on Earth buff.ly/2Hjpfey
803
«Winged migration» is a 2001 documentary film directed by Jacques Cluzaud, Michel Debats and Jacques Perrin, showcasing the immense journeys routinely made by birds during their migrations
[extended preview, HD: buff.ly/3x26bds]
804
Clathrus ruber is a mushroom also known as "red cage" due to the striking fruit bodies that are shaped somewhat like a round or oval hollow sphere with interlaced or latticed branches [read more: buff.ly/2He1G6T]
805
Baby seals can modulate the pitch of their voice spontaneously and without training, much like humans do.
[read more: buff.ly/2ZLvO46]
[📹 marine mammal rescue: buff.ly/3x5aQLE]
twitter.com/glurpo/status/…
806
Ever wonder where your house was located 300 million years ago? Thanks to software engineer Ian Webster, now you can. His interactive map tracks how the globe has changed over the course of the last 750 million years and... lets you pinpoint your address buff.ly/2LbvRy1
807
The black heron hunts with a method called canopy feeding, using its wings like an umbrella, creating shade that attracts fish. This video by @leedsbirder shows one filmed in Gambia [read more: buff.ly/3CzNrld-] [video, HD: vimeo.com/303166907-]
808
To maintain this hunting posture, the a kestrel flies into, and at the same speed as, the oncoming wind – the current of air passing over its wings provides the lift it needs [read more: buff.ly/3nzRry5-] [source: buff.ly/3k6esHp-]
809
This has been called 'the most annoying gif on the Internet' [buff.ly/30DLya6] but it has some interesting references, because it's a kind of a visualization in gif form of the concept of coastlines' fractal dimension: buff.ly/3ny2zv7
810
It looks weird, but there's a place in Greece where two rival church congregations in the town perform a "rocket war" by firing tens of thousands of home-made rockets across town, with the objective of hitting the bell tower of the church of the other side buff.ly/2H6TLI8
811
Kristy Paniptchuk filmed this clip in 2020 on an Alaskan river.
The fact the moose appears to walk on water (crossing the boat's path) is due to the shallow water and to the boat's jet motors
[read more: buff.ly/3QCOIiJ]
812
All three extant species of potoroo are threatened by ecological changes since the colonisation of Australia. This is a long-nosed potoroo, showing that their young can eat fruit even from the pouch [source, Cleland Wildlife Park: buff.ly/30ODcN0-]
813
The story of the unusual friendship between a female grey wolf and a male brown bear. They were spotted every night for 10 days straight, spending several hours together between 8pm to 4am. They would even share food together [read more: ow.ly/rKP350Afeni]
814
Sinkholes form through both natural and human-made processes. Watch this interesting lab modeling and demonstration by YouTube channel Practical Engineering explaining how this happens
[Model by Practical Engineering: bit.ly/2tnmUry]
815
This video was created by @kevinmgill using still images taken by the @CassiniSaturn spacecraft during its flyby of Jupiter and later at Saturn. Shown is Io and Europa over Jupiter's Great Red Spot and then Titan as it passes over Saturn [source, HD: flic.kr/p/2aVJtyV]
816
Wildebeest are very strong and can inflict considerable injury even to a lion, especially jumping when running at maximum speed of up to 80 km/h (50 mph)
[read more: buff.ly/3qlwJma]
[📹 Lauren Hughey: buff.ly/3AZDEpI]
817
This is the Graffito of Esmet-Akhom, the last known inscription written in Egyptian hieroglyphs, dated to 394 CE, essentially marking the end of a 3400 year-old civilization, talking about a period when the Roman Empire was close to an end too [read more: ow.ly/XivD30nglEq]
818
The Eternal Flame Falls is a small waterfall located in the Shale Creek Preserve, New York. A small grotto at the waterfall's base emits natural gas (~ 1 kg of methane per day), lit to produce a small flame [read more: buff.ly/2kXS6rN] twitter.com/TrisjantoTJ/st…
819
This visualization by @nealagarwal shows the scale of the cosmos, from an astronaut to the observable universe.
Visit: neal.fun/size-of-space/-
820
Neuronal migration is fundamental in central nervous system development. The assembly of functioning neuronal circuits relies on migration. This is a time-lapse phase contrast microscopy of migrating neuronal cells [Graham Wright: buff.ly/3qTkyOX]
821
Egg-eating snakes (genus Dasypeltis) live in Africa and feed on bird eggs. Watch one swallowing a egg bigger than its head breaking its shell with its cervical vertebrae. The entire process took 2 hours [full video, Living Zoology: buff.ly/30LaFIm-]
822
Atheris hispida is a venomous viper species endemic to Central Africa. It is known for its extremely keeled dorsal scales that give it a bristly appearance [read more: buff.ly/2pD6pE6]
823
The Andean condor is the largest flying bird in the world by combined measurement of weight and wingspan. It has a maximum wingspan of 3.3 m and weight of 15 kg [read more: bit.ly/3cCzYyo] [source of the photo, ornithologist Jerry McGahan: bit.ly/3cCzYyo]
824
Specialized hydrophobic structures on gecko skin encourage dewdrops to be swept away by the wind or by gravity. This experiment is an effective visualization
[read more: buff.ly/3qWcT24-]
[source, Simply Gecko: buff.ly/3x9uULK-]
825
Attracting hummingbirds is even more fun when you find a hummingbird nest and discover that their eggs don't reach 1.5 cm in length [read more: buff.ly/2JJ6JdU]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links