826
Sphalerite ((Zn, Fe)S) is a mineral that is the chief ore of zinc: the colors spectrum of its gems is awesome
[read more: bit.ly/2wUGKJo]
[📹: buff.ly/3GlJmE9]
827
Oscar Reutersvärd (1915–2002), widely acknowledged as “the father of the impossible figure”, was a Swedish graphic artist who in 1934 pioneered the art of 3D drawings which may initially appear feasible, yet cannot be physically constructed [read more: buff.ly/2DaSsoj]
828
These two snails live in different oceans, but their shell coils are identically inverted
Thatcheria mirabilis and Architectonica perspectiva fit together because their coils follow math rule known as Raup’s model
[read more: buff.ly/3XNKkly]
829
This jaguar demonstrated the meaning of the term power, dragging this 8 ft long, armour plated, 74 toothed, chunk of contracting muscle out of the water. Jaguars are estimated to have the 5th strongest bite in the entire animal kingdom [source: buff.ly/2ubjlH4]
830
Flying squid has been observed to engage in behaviors that prolong the time it remains in the air, making it more akin to actual flight than just gliding. This photo by @whale_nerd is one beautiful photographic evidence
[read more: buff.ly/3zYrwEJ]
831
This footage by Dr. Renaud Renault shows neurons seeded in two different micro-compartments extending their neurites through micro-tunnels to establish connections with each other
[full video, HD by Nikon Instruments Inc.: buff.ly/3fv5SON]
832
A brilliant step by step visualization of matrix multiplication matrixmultiplication.xyz
833
The truth
[by Visualize Value: buff.ly/3R9MB5S]
834
Bottled water cost is astounding when you think of how much you’re paying for production and distribution compared to the water itself. It’s even more shocking when you consider the detrimental effects it has on the environment
[source, read more: buff.ly/2LvDWvx]
835
Phalera assimilis is a moth featuring an impressive natural camouflage which allows it to perfectly mimic small twigs in order to avoid predators
[video: buff.ly/3UolINe]
[read more: buff.ly/3B2vj5L]
836
Bridge building has been one of the tests for second year University of Canterbury civil engineering students in Christchurch for nearly 30 years. Graduates have to build a bridge that supports 2 people, but collapses with 3
[📹: buff.ly/3Hj2F4n]
837
Artist Robert E. Fuller had been monitoring a barn owls family after they moved into a nesting box where he’d hidden a camera. During a summer storm, while all alone at the nest, an owlet heard thunder for the first time.
[📹 buff.ly/2o8kGfx]
838
GeoPlantNet allows you to select a rectangular area everywhere in the world and it returns a list of plant species that can be found there. For each species, it also returns where those plants are in the world with cycle life and flowering periods
[test: buff.ly/3UizaCh]
839
This lock can be opened with 1 lock: no matter which one.
It's a real life example of a brunnian link, a nontrivial link that becomes a set of trivial unlinked circles if any one component is removed
[source: buff.ly/3gRnwkm]
[read more: buff.ly/3OPptKH]
840
Photographer Hannie Heere was photographing barn owls when she captured an unusual shot of a baby barn owl running across grass. Barn owlets start flapping their wings at seven weeks, making short flights around the nest at eight weeks
[📷 read more: buff.ly/3jAmoQ4]
841
The Gathering for Gardner Dragon is probably one of the most captivating examples of the hollow-face optical illusion, but this big version in a street of Beijing is even more mesmerizing
[read more: buff.ly/2GE7QKN
[📹: buff.ly/2sm8QjA]
842
The Japanese technique Daisugi, enables foresters to grow more wood using less by heavy pruning a cedar tree, encouraging thin saplings to shoot upwards. In other words, think of it as a bonsai on a large scale
[ow.ly/ukzy50B0MO5]
[📹 mohibbangash]
843
The size of a wolf.
Brittany Allen rescued Yuki from being euthanized in 2019. DNA tests showed that Yuki was 87.5% Gray Wolf, 8.6% Siberian husky, and 3.9% German shepherd.
[source: buff.ly/3UpCrQp]
[full story: buff.ly/3gSJRho]
844
How to create a mesmerizing (and scary) well in your living room table using the infinity mirror principle.
[what's an infinity mirror: buff.ly/3VErviX]
[source: buff.ly/3B0ucU4]
845
Çatalhöyük, Turkey, is one of the most important archaeological sites in the world where 9000 year old Neolithic settlements have been discovered. This obsidian mirror has been found there
[photo by Jason Quinlan + project site: buff.ly/339p4LQ]
846
In a galaxy far far away, Hubert Zitt, professor at the Zweibrücken University of Applied Sciences and known for Star Trek and Star Wars lectures, transformed the Zweibrück Observatory of the Natural Science Association into a giant R2-D2
[read more: ow.ly/b0V530obRtp]
847
YouTube user kinohaguruma makes wooden toys and this 2007 project is possibly one of the best. This excavator is completely made out of wood and works perfectly fine
[full video: buff.ly/3tnb8sh]
[more details: buff.ly/3edT8MN]
848
A Schwarzschild cosmology is a model in which our universe is the interior of a black hole. If proven true, this would mean that universes are layered within universes, being possible to travel through black holes into entirely new universes
[read more: buff.ly/3XMnM4J]
849
Zoologist Clinton Hart Merriam described raccoons as "clever beasts", with reason. In a study, raccoons were able to open 11 of 13 complex locks in fewer than 10 tries. This BBC video gives a demonstration
[video: buff.ly/3eWpkTY]
[paper: buff.ly/33gvpFE]
850
Neuralink has submitted its paperwork to the FDA and in about 6 months the company should be able to operate a Neuralink in a human
[video: buff.ly/3Bntq3R]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links