BPA Science Lab – How to Build a Motor

(BPA Science Lab title) (How to Build a Motor opening title sequence with music) Mike Hulse, BPA Electrical Engineer: Hi, I’m Mike. Kellie Robinson, BPA Electrical Engineer: And I’m Kellie. We’re both engineers at the Bonneville Power Administration in Portland, Oregon. Mike: Today, we’re going to show you a simple experiment that explains how electricity…

White Holes | Space Time

White Holes | Space Time

This episode is supported by LegalZoom. Lurking in the depths of the mathematics of Einstein’s general relativity is an object even stranger than the mysterious black hole. In fact, it’s the black hole’s mirror twin: the white hole. Some even think that these could be the origin of our universe. The astrophysical phenomenon of the…

How Black Holes Kill Galaxies

How Black Holes Kill Galaxies

Thanks to Brilliant.org for supporting PBS Digital Studios Black Holes are really only dangerous if you get too close Who am I kidding ? It turns out that they may be responsible for ending Star formation across the entire Universe When we first realized that Black Holes could have masses of Millions or even Billions…

President Barack Obama at MIT, Oct. 2009

President Barack Obama at MIT, Oct. 2009

[THEME MUSIC] MODERATOR: Ladies and gentlemen, please rise and welcome Cecilia Lewis as she sings our national anthem. CECILIA LEWIS: (SINGING) Oh, say can you see, by the dawn’s early light, what so proudly we hailed at the twilight’s last gleaming, whose broad stripes and bright stars through the perilous fight, o’er the ramparts we…