1751
This floating bridge built in the Shiziguan area of the Hubei Province, China is 500 m long and 4.5 m wide. It was built over a winding river whose maximum water depth is ~60 m
[read more: buff.ly/3dHD5FT]
[source: buff.ly/3yeWNCi]
1752
The story of the longest duration flight. Between 1958 and 1959, Bob Timm and John Cook remained aloft for a full 64 days, 22 hours and 19 minutes on a Cessna 172, setting a record that stands to this day. In the photo, a refueling operation [read more: buff.ly/2XJqhdN]
1753
This mussel waves a lure that looks like a small fish. Bigger fish try to eat the lure & a cloud of larvae is expelled, attaching to the fish gills so that they can go upriver instead of downstream [source, read more: buff.ly/3bipggb] [Video by Ryan Haggerty]
1754
Impressive upward lightning captured on August 14, 2022 in Medina, Saudi Arabia
[read more, upward lightning: buff.ly/3OFkHz4]
[📹 Gamal Sayed]
1755
Antennas for AM radio stations in the medium-wave band are generally the entire tower structure, as opposed to the towers for FM and TV station. The ball of plasma acts like a speaker and you can listen to the radio
[📹 read more: buff.ly/3E37yg6]
1756
This Vietnamese woman making a fishing net, captured by photographer Danny Yen Sin Wong, looks as if she's swimming in a sea of green fire
[source, read more: buff.ly/2IUqRfs]
1757
Operant conditioning is controlled by external stimuli, using reinforcement learning. Here's how it's applied to chickens
[📹 buff.ly/3AMriSK]
[read more: buff.ly/SnuczM]
1758
Tortoises and turtles can feel their shells. A mechanoreceptive innervation in the superficial layers of the shell is sensitive to transient stimuli [buff.ly/3ibuV9A, buff.ly/3m3kze4] [source, Badger Run Wild Rehab: buff.ly/3qSDOfn]
1759
Paint correction is the process of permanently removing surface scratches, swirl marks, hazing, marring, and other imperfections in a vehicle’s paint. Yet, one must master the technque of car color grading, like this.
[source: buff.ly/3tPzLk1]
1760
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]
1761
The Colomban Cri-Cri is the smallest twin-engined manned aircraft in the world, designed in the early 1970s by French aeronautical engineer Michel Colomban [read more: ow.ly/PGa430n4hgw] [source: ow.ly/zmhg30n4hh1]
1762
For more than 20 years, Christian Moullec has flown with birds. With his microlight aircraft he guides migrating flocks of vulnerable species and orphaned birds
[video, read more, National Geographic: buff.ly/3CfBHoY]
1763
What is the theoretical longest (vertical) straw you could possibly drink from? It's one where the pressure at the top of the straw is 0.
If P = atmospheric pressure and ϱ the density of water
h=P/(ϱ•g)
h=101kPa/(9.81•1000) = 10.3 m
[read more: buff.ly/3aMdjyd]
1764
Gustaf III Airport s a public use airport located in the village of St. Jean on the Caribbean island of Saint Barthélemy. This video by Sam Watt shows how airplanes land there, with the addition of (recurrent) windy conditions [full video: buff.ly/3pZCDay]
1765
Giant Pandas subsist almost entirely on bamboo, eating from 10 to 40 kg per day. They play an essential role in the bamboo forests by spreading seeds as they roam, increasing vegetation
[read more: buff.ly/3UNC3LJ]
[📹 buff.ly/3uIJeKt]
1766
Siphon tubes are a basic implement used in irrigation to transfer water over a barrier (such as the bank of a raised irrigation canal), using the siphon principle
[read more: buff.ly/39e71b2]
[📹: buff.ly/3Dlonid]
1767
The world largest A380-800 RC model Mega XXXL Thai Airways with turbines
[full video: buff.ly/3BHTxT1]
1768
Most geckos cannot blink, but they often lick their eyes to keep them clean and moist. They have a fixed lens within each iris that enlarges in darkness to let in more light [read more: buff.ly/2G8X6BY]
1769
This video by Bruce Yeany shows a nice collection of homemade marble tracks used to teach motion, acceleration, inertia, potential and kinetic energy but also explain that, with gravity, the shortest path is not always the fastest
[full video: buff.ly/3fDrCYt]
1770
The male Cabot's tragopan has very colorful decorative, inflatable wattles below its beak and has a pair of peculiar fleshy blue "horns" over the eyes
[read more: buff.ly/2IxQQ96]
1771
The Sahara desert's area is 9,200,000 square kilometres (3,600,000 sq mi) and is comparable to the area of the United States
[map: thetruesize.com]
[read more: buff.ly/2WXqqWb]
1772
Lightning, for obvious reasons, is difficult to study. But scientists have built a device that enables them to make their own bolts of electrical power on demand. This is a rocket-triggered lightning launch site just, hit by lightning, 1M frames per second ow.ly/3udm30n5e7B
1773
A blue iceberg is visible after the ice from above the water melts, causing the smooth portion of ice from below the water to overturn. The rare blue ice is formed from the compression of pure snow ice buff.ly/2JKhhfB [photo by Robert B. Dunbar: buff.ly/32UZFmK]
1774
One million Earths: a visual representation of how many Earths could fit inside the Sun
[source, @astronomyblog: buff.ly/3f5o3dY]
1775
GravityLight is an LED light powered by a bag filled with rocks, attached to a cord, which slowly descends and powers the light for up to 20 minutes. Intended as a replacement for kerosene lamps in the developing world it has no operating costs
[more: buff.ly/2sRSBbs]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links