151
While they seem to show affection to one another, these two monitor lizards are actually fighting. They do it by rearing up on their hind legs & trying to overpower their rival, generally as competition for food, territory or a mate buff.ly/3BXo3cz
152
Before smartwatches, there was the Seiko UC-2000 wrist computer. It could store 2K of data, tell the time, and perform calculator functions. It made its debut in 1984 [read more: buff.ly/3vRejMX]
153
Ravens playing in the snow.
Ravens and corvids in general are among the most playful animals.
[read more: buff.ly/2N2PkPn]
[📹 Jane Hunter: buff.ly/3FikrzV]
154
Over the last 200 years, Earth's magnetic field, which is vital to life on our planet, has lost around 9% of its strength on a global average. A large region of reduced magnetic intensity has developed between Africa and South America [full story: buff.ly/2LP4jwo]
155
The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. This is a 3D printed model of 7-cylinder radial engine [source by Adam's Lab: buff.ly/2A9Z4oF]
156
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]
157
São Martinho do Porto is a village in Portugal with a shell-shape bay surrounded by a white sand beach. They bay formed when a strip of land along the coast was eroded and divided by the Atlantic Ocean [source: buff.ly/3703lbA]
158
You may have noticed that:
13 x 13 = 169 and 31 x 31 = 961
which makes the two operations true even if read in reverse.
But this is not the only case.
buff.ly/2G6Pkga
159
In this beautiful close up by gemstone hobbyist Jeff Schultz, we see a stunning Mexican fire opal. When illuminated just right, it looks like a sunset above the clouds [source, read more: buff.ly/2pqGccO]
160
Torghatten is a granite mountain on the island of Torget in Brønnøy Municipality in Nordland county, Norway. It is known for its characteristic hole, or natural tunnel, through its center [read more: bit.ly/2eshMcI]
161
To perfect their attacks, some volleyball players choose to train themselves against a robot that can mimic the tactics of opposing teams [read more: buff.ly/3tY9tuQ]
162
All the ~7.7 billion people composing the human race today, would fit into this cube [source, by @waitbutwhy and read more here: buff.ly/2pBxEi8]
163
Perfectly normal photo of Adele, isn't it? Just turn the picture upside down... [and learn about the Thatcher effect or why your brain can't properly process a photo of a face that is upside down: buff.ly/2DKqSMp]
164
Marg Leehane, owner of Great Bear Lodge in Port Hardy, British Columbia, decided it was worth waking up the guests at 6 a.m. to show them two humpback whales in the bay [source, HD: buff.ly/3JKlZ9M] twitter.com/Gabriele_Corno…
165
Kingfishers have binocular-like vision with restricted eye movement, which allows for tracking fish underwater. They can compensate for reflection and refraction and can judge water depth very accurately [read more: buff.ly/3beyM3G] [full video: buff.ly/30Y3XhL]
166
This is how a geologist collects samples of lava. The footage was filmed at the Kilauea flow on May 31, 2017 [source + full video, USGS: buff.ly/2GXE421]
167
Hövding’s airbag for cyclists is activated (and rendered unusable after it has inflated) in the event of a crash. It recently received independent tester Certimoov’s protection rating of 4.5 stars, while no other cycling helmet received more than 4 [more: buff.ly/3BfPF8P]
168
Photographer Toogee Sielsch filmed a badger and coyote strolling together in a forest in South Lake Tahoe, California. They've been spotted together before: buff.ly/3mdYknN-, even hunting: buff.ly/37ZyI4I- [source: buff.ly/2ZlOLKO-]
169
Using a drone, brothers photographers JP and Mike Andrews, capture natural and human made scenes across the world, stumbling upon unique patterns that can only be discerned from above, like this cargo ship's shadow [this and more pictures, here: buff.ly/2zZH7pz]
170
How a simple, careful placement of leaves around a tree's roots makes it look like an unearthly glow [read more: buff.ly/2XGxJ9y]
171
There's a math TV show in Nigeria
Created by Cowbell in 2015, it's aimed at promoting mathematics by being deployed in public and private schools.
[read more: buff.ly/3zQY3ga]
twitter.com/Osmpeoples/sta…
172
Hinamitetu is the hand-crafted creation of a Japanese maker who has been running the little robot through a variety of gymnastic challenges. This is #26, dealing with floor gymnastics [videos: buff.ly/3vW9GkS]
173
This video by Pure Life shows how traditional Uzbek bread is made. The doughs are baked upside down, where the heat keeps them in place and the bakers know exactly when to grab them out of the oven before they fall off [full video: buff.ly/3FMoN2i]
174
The superb lyrebird is an Australian songbird. It is one of the world's largest songbirds, and is renowned for its elaborate tail and courtship displays, and its excellent mimicry
[📹 World Birds]
[read more: buff.ly/3ddF9IK]
175
Media artist and developer Roelof Knol created this interactive projection mapping installation drawing Voronoi cells with a pendulum ball
[source, more videos: buff.ly/3QC1Tk5]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links