12M views · 167K reactions | The Great Escape  (explained) | Zack D. Films | Facebook

11M views · 114K reactions | What if one virus could prevent infection with another? A fascinating theory with broad implications for this pandemic and beyond. Links and more: zdoggmd.com/viral-interference Want to support our show? zdoggmd.com/supporters | ZDoggMD | Facebook

15K views · 189 reactions | Can you tune electric cars for more power? This is my third of a five part series where I've partnered with FIA Formula E to teach about electric cars! #EngineeringExplained | Engineering Explained | Facebook

4.2K views · 1.7K reactions | Tired of crappy, generic dog collars? Upgrade to a personalized Tactipup collar.  Multiple sizes for nearly all dog breeds 100s of color combos  Over-Built Dog Collars, handmade in the USA "This collar is solid and incredibly well built. It is a great investment because I have peace of mind knowing that my dog will never break free or get that collar pinch" - Tactipup Pack Member Order a personalized dog collar today! | Tactipup | Facebook

59K views · 1K reactions | MARY POPPINS, PHANTOM AND LES MIS AT BGT – NEWS A celebration of British theatre tonight at Britain’s Got Talent: a big West End Spectacular with members of the cast of Mary Poppins, Phantom of the Opera and Les Mis. Watch the video here: www.londontheatrereviews.co.uk/post.cfm?p=4656 | London Theatre Reviews | Facebook