Click HERE to subscribe to Vsauce for more! It's FREE! http://www.youtube.com/subscription_center?add_user=vsauce

Follow @tweetsauce

Tell Geek and Sundry that Vsauce says "hi!" and SUB!: http://www.youtube.com/watch?v=6-Wef0694aY

http://www.Facebook.com/VsauceGaming
music courtesy of http://www.SoundCloud.com/JakeChudnow

Thanks to:
http://www.youtube.com/phoenixsaintly
and
http://www.youtube.com/theINENIvlogs
For helping me with this video at Summer in the City!!
theINENIvlogs behind the scenes Summer in the City vid with me: http://www.youtube.com/watch?v=F_Rd35906MQ

Why videos views freeze in the 300s on YouTube (sub to this channel FTW, seriously): http://www.youtube.com/watch?v=oIkhgagvrjI

Japan Earthquake and Earth's rotation: http://en.wikipedia.org/wiki/2011_T%C5%8Dhoku_earthquake_and_tsunami#Geophysical_effects

All people in one place LIVING: http://persquaremile.com/2011/01/18/if-the-worlds-population-lived-in-one-city/

shoulder-to-shoulder: http://news.nationalgeographic.com/news/2011/10/111031-population-7-billion-earth-world-un-seven/

BBC Jump Video: http://www.bbc.co.uk/learningzone/clips/if-the-whole-world-jumped-at-the-same-time-would-the-planet-move/13428.html

SCALE OF UNIVERSE AWESOME: http://htwins.net/scale2/

STRAIGHTDOPE article on a jump: http://www.straightdope.com/columns/read/142/if-all-chinese-jumped-at-once-would-cataclysm-result

Dot Physics on the jump: http://www.wired.com/wiredscience/2010/08/what-if-everyone-jumped/

Interactive scale of the universe: http://scaleofuniverse.com/

Decimate: http://www.etymonline.com/index.php?allowed_in_frame=0&search=decimate&searchmode=none

Dunbar's Number: http://en.wikipedia.org/wiki/Dunbar's_number

NPR story on Dunbar's number: http://www.npr.org/2011/06/04/136723316/dont-believe-facebook-you-only-have-150-friends

Life Expectency: http://en.wikipedia.org/wiki/Life_expectancy

How many people you meet in your life: http://eclectic24.wordpress.com/2009/03/15/how-many-people-will-you-meet-in-your-lifetime/

Newton's Third Law: http://www.physicsclassroom.com/class/newtlaws/u2l4a.cfm