In less than 24 hours, the Sun has unleashed a trio of X-Class solar flares. They are the first, second and third X-class eruptions of 2013, making them the most powerful of the year by a substantial margin. What’s more, each burst has been more violent than the last. So uhh… what the hell is going on here?
Someone stole all my guns today from my house and a stripped PSA lower, among other things. If anyone local sees someone trying to dump this stuff lmk! #picstitch #albuquerque #riorancho #guns #fuckthieves #p99 #fnp45 #ar15 #fml
Ferrofluids are known for their fascinatingbehaviors when subjected to magnetic fields, especially for the distinctive peaks they can form. In this video, we see a very thin ferrofluid drop on a pre-wetted surface just as a uniform perpendicular magnetic field is applied. Immediately the droplet breaks up into tiny isolated peaks that migrate out to the circumference. The interface breaks down from center, where the drop height is largest, and moves outward. Simultaneously, the diffusion of ferrofluid from the circumferential droplets into the surrounding fluid lowers the magnetization of those droplets, making it more difficult for them to repel their neighbors. As a result, they drift outward more slowly and get caught by the faster-moving droplets from within. (Video credit: C. Chen)