2126
SuitX Phoenix is a semi-passive and lightweight powered exoskeleton for patients with spinal cord injury and mobility disorders
[full paper: buff.ly/3qUtCSk]
2127
And what's worse, all the work done for free in order to make some order with sources and context, is taken for earning money. It took years for us to reach our respective number of followers, while this account, using this unfair method, made almost 1M followers in 2 months.
2128
Have you ever seen a spiral-like aurora? This photo was taken by photographer Juan Carlos Casado in August 2016 over Thingvallavatn Lake in Iceland, a lake that partly fills a fault that divides Earth's large Eurasian and North American tectonic plates buff.ly/2c6yeNP
2129
This Fiatagri 88-94 DT tractor was modified to drive the irritigation system in maize fields without ruining the crops
[full video (IT): buff.ly/3N73Kgo]
2130
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]
2131
Unlike most birds, kiwis have heavy bones filled with marrow. Their powerful legs make up a third of their body weight and allow them to even outrun a person
[read more: buff.ly/30SrReC]
[clip by YT's Peter: buff.ly/3cJO8xP-]
2132
The barreleye fish lives in the ocean’s twilight zone, at depths of 600 to 800 meters. It has a transparent head and tubular eyes, generally directed upwards to detect the silhouettes of available prey
[source, @MBARI_News: buff.ly/3shzln9]
2133
This is the world's largest air cannon, built by Laborky Cz in collaboration with the TV show "Wonders of Nature" in 2015. The cannon could shoot air (with smoke to make it visible) more than 100 m, breaking a giant wall of cardboard boxes [full video: buff.ly/2TpT0Pe]
2134
The vaquita is a rare species of porpoise endemic to the northern part of the Gulf of California. It's the most endangered cetacean in the world. A 2019 estimate reported that a maximum of 22 and a minimum of 6 vaquita porpoises remain buff.ly/2J7gem2
2135
22 years ago #Today, while en route to Saturn, @CassiniSaturn made its closest approach to Jupiter. This view of Io against the gas giant's clouds was sent to Earth two days later go.nasa.gov/2ixxp3D
2136
Kallima genus' common name, oak leaf butterflies, is a reference to the lower surface of their wings, which is various shades of brown like a dead leaf. Extraordinary camouflage, outstanding beauty [source, Melissa Yung: buff.ly/2Xw1SbI-]
2137
Hiccups are an involuntary movement triggered partly by the autonomic nervous system (which controls the heartbeat, pupil dilation & other involuntary bodily functions). This is true for animals too and specifically for cats buff.ly/3bOinTn [gif: buff.ly/2MwVw6f]
2138
54 years ago #Today, three men were boldly going where no one had gone before. This is what Earth looked like in the Hasselblad photos taken more or less in the same hours, during the trans-lunar coast ow.ly/eCSA30n5c4p #Apollo8
2139
Hyalite acquires a property of fluorescence due to the inclusion of trace amounts of contaminating uranium in the silica structure of the opal itself, and under ultraviolet light uranium will glow very brightly [source and more: buff.ly/2ZO955x]
2140
Cechenena helops is a moth of the family Sphingidae. Its caterpillar has a very peculiar appearance, as showed by this photo by Frank Deschandol
[source, more photos by the author: buff.ly/33FkecJ]
[read more: buff.ly/3nwHbWW]
2141
Cold weather may contribute to create solar haloes. This impressive video was captured in Sweden in December 2018 and you can see a magnificent 22° halo with an impressive upper tangent arc [source: buff.ly/3p6DTKr ] [explanation: buff.ly/2UJezd3]
2142
40 minutes from recently unocovered footage of the detonation of the largest nuclear bomb the world has ever seen, the RDS-220, or Tsar Bomba
[read more, the full video: buff.ly/34GCnp8]
2143
Ta Prohm is a temple at Angkor, Cambodia, built in the late 12th & early 13th centuries. Huge trees, reminiscent of ancient redwoods and oaks, are blended into the walls, and rocks hugging the giant roots gives the temple a surreal appearance [read more: buff.ly/3CJaQkk]
2144
Airless tires eliminates the need for air with a structure capable of supporting the vehicle, while also delivering a safe ride. Without air, flat tires and pressure loss are no longer an issue
[read more: buff.ly/3vfObKv]
2145
Since octopuses lack bones, they can contort their bodies to fit into tiny spaces. This makes them excellent escape artists. In this video, a 600 lbs (272 kg) octopus squeezes itself through a tube 1/10th of its size [source, National Geographic: buff.ly/3EQHphp]
2146
Jupiter radiates more heat than it receives from the Sun. This heat is generated by the Kelvin–Helmholtz mechanism through contraction, which causes Jupiter to shrink by about 2 cm/year. When it was first formed Jupiter was about twice its current diameter buff.ly/2tEq2gW
2147
The size of Earth compared to the size of the rings of Saturn [source: buff.ly/2DGi1LA]
2148
This classic short film shows how to make an igloo using only snow and a knife. Two Inuit men in Canada’s Far North choose the site, cut and place snow blocks and create an entrance--a shelter completed in one-and-a-half hours [full video: ow.ly/Ia6r30n6nu3]
2149
Can you figure out which of these orange lines is longer? Not only are they the exact same size, but their tops and bottoms are also directly in line with each other
[source: buff.ly/2Kw0I7D]
[read more: buff.ly/2KnYvfe]
2150
A sunken lane (also hollow way or holloway) is a road or track that is significantly lower than the land on either side, not formed by the (recent) engineering of a road cutting but possibly of much greater age [read more: buff.ly/2rUgHSp]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links