Ferrofluids are basically just iron nanoparticles suspended in a liquid. In the presence of magnets, they do some pretty cool things. For instance, ferrofluids flow to place where the magnetic flux--the strength of the magnetism--is strongest. So if you magnetize the screw from a meat grinder so the magnetic flux is denser at the top than it is at the bottom, the ferrofluid will climb the screw like staircase.
The new Mars rover Perseverance, set to launch in July for a February 2021 landing, will be outfitted with its own small helicopter. NASA engineers at Kennedy Space Station recently put the chopper through its paces, marking the last time they’ll spin it up before landing on the red planet. From Kennedy Space Center: The […]
American drug maker Johnson & Johnson said Monday it plans to begin the human testing phase of its experimental coronavirus vaccine by September 2020, with plans to make it available for emergency use in early 2021.
Yes, that is actually Space.com’s brilliant headline on this story about a new discovery from data collected in 1986 by NASA’s intrepid spacecraft. When the probe neared Uranus (heh heh), it measured the planet’s surrounding magnetic field. Recently, NASA scientists Gina DiBraccio and Daniel Gershman analyzing Voyager’s old data found a “wobble” in Uranus’s magnetosphere […]
Paralysis by analysis. It’s the phenomenon that happens when you’re so stuck on thinking through all the ramifications of your actions that you don’t actually take action in the first place. That can happen with all this free time you’re spending stuck inside your house. With literally every home-bound option available to you, it’s easy […]
At this point, it’s every single person’s responsibility to reduce their own carbon footprint and transition to a more sustainable lifestyle. But if you consider the grim fact that the biggest culprit of greenhouse gas emissions from human activities in the U.S. is burning fossil fuels for electricity, things, like pivoting to metal straws and […]
Companies that don’t have their own in-house design teams (which means 99 percent of all companies these days) face lots of serious questions. Among those questions is how you keep up with all the design requirements of a 21st-century company without the personnel. It isn’t just a website or an annual product catalog anymore. It’s […]