76
How in 1966 the Soviet Union used a 30-kiloton nuclear weapon to extinguish an out of control natural gas well fire [video, full story: buff.ly/2vuMhao]
77
The saddleback caterpillar has tubercles that contain threatening hollow spines connected to a gland that secretes venom that, when broken, is released into predators
[read more: buff.ly/3SvSZqe]
#SundayFunday
78
Rubik’s cube solving robots like this one are entirely made of LEGO and based on a LEGO MINDSTORMS® NXT 2.0 kit Robot designed for this purpose
[read more: buff.ly/3zDGL6i]
79
Derik M. was on the McMurdo Station in Antarctica as a US Coast Guard in 2017, when he spotted a family of penguins. Suddenly, a piece of the ice broke and the clip turned out to be one of the most thrilling ever filmed [source: buff.ly/3bEDKdY]
80
Fallingwater, the modern house prototype built by Frank Lloyd Wright over a waterfall in 1935
[read more: buff.ly/3e66mZ4-]
[video: buff.ly/3ebAG4x-]
81
With its colorful soils, salt caves and mountains, and ocher-stained streams and beaches, Iran’s Hormuz island is rich with memorable geology. Famous is its silver and glittering sand [read more: buff.ly/3m5rSUP] [source, Mohammad Davood Asadi: buff.ly/3juF9Vf]
82
Cellulo explores how small, inexpensive robots can leverage autonomy to help kids learn with their hands [read more: buff.ly/2FVk7JC]
83
Ivory poaching over few decades has led to the evolution of tuskless elephants, researchers have found, proving that humans are “literally changing the anatomy” of wild animals [read more: buff.ly/3m5Bu1y]
84
How to make a color changing cake using the lenticular printing principles
[read more: buff.ly/2ZB1GHc]
[video tutorial: buff.ly/2NPGlUf]
85
Mechateuthis is a giant mechanical squid by Barry Crawford, powered by 8 digitally controlled electric motors. By turning cranks you can control the squid's arms, tentacles, beak, eyes, and more. It was part of Burning Man 2015 [video: buff.ly/2Zd2FPK]
86
Hemiscyllium halmahera is a species of bamboo shark discovered in 2013. It uses its pectoral fins to walk along the ocean floor [full video by Mark Erdmann: buff.ly/36t2yOQ]
87
Leonardo: the skateboarding, slacklining robot. Researchers at Caltech have built a bipedal robot that combines walking with flying to create a new type of locomotion, making it exceptionally nimble and capable of complex movements [learn more: buff.ly/3pw47ar]
88
Imagine to grab a Champagne bottle by the neck and hurl it against a wall. What could go wrong? Some science considerations: buff.ly/3E8gfCK
89
In this short clip from 1983, legendary computer scientist Grace Hopper uses a short length of wire to explain what a nanosecond is. 1 light-nanosecond ~ 10⁻⁹ light-second ~ 30 cm ~ 11.8 in + bonus: 1 micro-second ~ 10⁻⁶ ~ 300m ~ 984 feet [full video: buff.ly/2NGtVOg]
90
Ultrasonic transducers in this mini acoustic levitator are speakers emitting sound waves at a frequency of 43,000 Hz, which corresponds to a wavelength of 8 mm for dry air. Standing waves with nodes of low pressure will 'hold' the foam [source, read more: buff.ly/3ju40Iu]
91
The archerfish preys on land-based insects and other small animals by shooting them down with water droplets from their specialized mouths and can hit them up to 3 meters above the water's surface [read more: buff.ly/2pfHojA] [video, BBC: buff.ly/3pqmopH]
92
Data from scans of a developing embryo show us how our faces don't just grow, but fit together like a puzzle. The development of the human face during gestation [video: buff.ly/2G7GnTI]
93
Photographer Alan Murphy was in Alaska when he snapped this picture showing a bald eagle's 2-meter wing-span and its precision when diving down to catch its prey [story: buff.ly/2yQaa1y] [more pictures on the author's site: alanmurphyphotography.com]
94
Sam Cossman & George Kourounis become among the first explorers to step foot inside the worlds most dangerous and inaccessible volcano, Marum Crater. More people have visited the moon than the firey depths of this spectacular and deadly location [video: buff.ly/3E3CDgm]
95
A peacock can fly despite its large size. Its tail is up to 2 meters long, about 60% of its body length. Despite these odd proportions, the bird flies just fine, if not very far [read more: buff.ly/2V2ZNQC-] [clip by Harsha Narasimhamurthy]
96
Asteroids designation uses progressive integer numbers: this video compares the size of some of the known asteroids and shows how the lowest numbers correspond to the biggest rocks [source, MetaBallStudios/Alvaro Gracia Montoya: buff.ly/2w5Myo8-]
97
The giant manta ray is the world's largest ray and one of the largest fish. They can reach widths up to 8.8 m and weights up to 3,000 kg. This clip by Matthew David Kaplan documents a striking encounter with one of them [source: buff.ly/3b1H7rB-]
98
There's a mountain in Peru whose 7 colors make of it one of the most beautiful natural wonders in the world [read more: ow.ly/IBmH50DtEih]
99
Fun fact: in the 50 years we have been recording the Earth's rotation to the ten-thousandth of a second, only a single day in 2008 was actually 24 hours long
[source, credits and more info, Reddit's user u/rtphokieO: buff.ly/3Qcp0C4]
100
In 1951, Adelbert Ames created the mind-boggling ‘Ames Window’. It’s so effective that even when you know how it works you can’t break the illusion [video from The Curiosity Show: buff.ly/36DvRNs]
Astronomy, astronautics, meteorology, physics. Engineer, trying to build the big picture of #science via selected & curated pics, videos & links