SMBC If you click on the description of his book, you can read his "lost chapter". His disintegration of the nuclear family analogy is a pretty funny.
Advance in Fusion Reactor Technology:
https://www.youtube.com/watch?v=yXLO3-7BRwQ&t=58s&ab_channel=CommonwealthFusionSystems
Is size important? http://htwins.net/scale2/
Sedan Nuclear Event: https://www.youtube.com/watch?v=EeyEXkVAifM
Bomb radius over cities: https://nuclearsecrecy.com/nukemap/
Minute physics antimatter: https://www.youtube.com/watch?v=Lo8NmoDL9T8
Brian Greene on String Theory 2005 (20 minute Ted Talk): http://www.ted.com/talks/brian_greene_on_string_theory.html
The Elegant Universe Series from 2003 describing String Theory (based on Brian Greene's 1999 book): part 1: https://www.youtube.com/watch?v=5YQ9rrZnHL8
Why String Theory is(could be) Wrong: https://www.youtube.com/watch?v=IhpGdumLRqs
Lee Smolin with some criticism of String Theory: (22 minutes BBC) http://www.youtube.com/watch?v=I_FG8kRVWkQ orhttp://research.microsoft.com/apps/video/dl.aspx?id=104163
Brian Cox on the Large Hadron Collider (LHC) 2008(15 minute Ted Talk): http://www.ted.com/talks/brian_cox_on_cern_s_supercollider.html
Animation explaining the Large Hadron Collider (LHC): http://www.youtube.com/watch?v=qQNpucos9wc&feature=related
"Large Hadron Rap" - very silly - http://www.youtube.com/watch?v=j50ZssEojtM&feature=related (back up dancers "prefer anonymity")
Brian Cox in 2009 explaining what went wrong at LHC (4minute Ted Talk) :http://www.ted.com/talks/brian_cox_what_went_wrong_at_the_lhc.html
Need LHC updates? Official site: http://lhc.web.cern.ch/lhc/News.htm and Wikipedia is pretty good:http://en.wikipedia.org/wiki/Large_Hadron_Collider
Brian Cox in 2010, "Why We Need Explorers" (17 minute Ted Talk) http://www.ted.com/talks/brian_cox_why_we_need_the_explorers.html
Aaron O'Connel 2011, "Making Sense of a Visible Quantum Object" (8 minute Ted Talk)http://www.ted.com/talks/aaron_o_connell_making_sense_of_a_visible_quantum_object.html
minutephysics of Dark Energy 2011: http://www.youtube.com/watch?v=v6o2bUPdxV0
Dark Energy - Data showing the universe is accelerating 2017: https://www.youtube.com/watch?v=tXkBfkeJJ5c
minutephysics of Dark Matter 2012: http://www.youtube.com/watch?v=Af0_vWDfJwQ
minutephysics Higgs boson explanation June 2012(before data confirms its existence): : part 1: http://www.youtube.com/watch?v=9Uh5mTxRQcg part 2: http://www.youtube.com/watch?v=ASRpIym_jFM
part 3: http://www.youtube.com/watch?v=6guXMfg88Z8
Higgs boson data presented at the perimeter institute for theoretical physics September 2012 (pretty techinical, 74 minutes):http://www.perimeterinstitute.ca/videos/higgs-boson-and-speculative-particle-physics