These are the popular science videos we liked the most this week:
Head Squeeze: what do schools of fish have to do with FC Barcelona?
Periodic Videos: the super heavy and super expensive irridium.
TED-Ed: will T. Boone Pickens pull out his shotgun and shoot, when asked uncomfortable questions about shale gas and fracking, which he invested a lot of money in?
Computerphile: look at this awesome robot building circuit boards!
PBS Idea Channel: third wave feminism for dummies.
Numberphile: a formula, using this constant, produces only primes! Unfortunately it's not that easy to use this constant.
TED-Ed: how dyslexia works?