YouTuber and former NASA engineer Mark Rober dropped an egg from space for his latest project, and the first step was calculating its terminal velocity. What they found out was that a mattress could protect an egg traveling faster than its terminal velocity. Getting it into space was an entirely different story, as that required testing with a custom-built rocket and weather balloon.
North Carolina State University researchers have developed a manta ray-inspired ‘butterfly bot’ that is now the fastest swimming soft robot yet. They were named as such due to their because their swimming motion mimicking a human’s arms when performing the the butterfly stroke in water as well as having biomechanics inspired by the manta ray.
While APPTRAKK won’t work on Europa, this wearable anti-drowning device, developed by Macquarie University researchers, detects signs of drowning and alerts lifeguards to the swimmer’s location. Sensors on the bracelet have built-in sensors to detect heart rate, blood oxygen, water depth, submersion time and movement patterns.
Let’s face it, many of us have encountered an old smartphone battery that looked ready to pop, but prodding around or even stabbing the cells is definitely something you should never do. There have been horror stories of lithium-ion polymer batteries exploding, and those are not just myths, as the iFixit team shows.
Researchers at The University of Texas at Austin have developed a mind-controlled wheelchair that translates the thoughts of a paralyzed person into movement. It was tested on three people with tetraplegia, the inability to move their arms and legs due to spinal injuries, all of whom operated the wheelchair in a natural environment to varying degrees of success.
While Curiosity is exploring Mount Sharp, NASA’s Perseverance Mars rover is busy traversing Jezero Crater’s ‘Yori Pass’, where it stumbled upon an unusual sandstone piece with veins of lighter material inside. These fine grains are thought to have been carried from elsewhere by water before settling and forming stone.
While NASA’s Curiosity Rover is busy exploring Mount Sharp, ESA’s Mars Express orbiter captured a massive dust storm that kicked up Earth-like clouds that can be seen from space. What it observed was that the storms appeared to grow and disappear in repeated cycles over a period of days, and the spirals you see are between 1000 km (621 mi) and 2000 km (1243 mi) in length.