References
10 – pregnant cravings - https://www.psychologytoday.com/blog/craving/201306/what-really-causes-pregnancy-cravings
http://www.babycenter.com/0_food-cravings-and-what-they-mean_1313971.bc?showAll=true

 9 – first superhero - https://www.quora.com/Who-is-the-oldest-DC-superhero
https://en.wikipedia.org/wiki/List_of_superhero_debuts
https://www.quora.com/What-was-the-first-comic-book-superhero

8 – speed of light - http://video.mit.edu/watch/visualizing-video-at-the-speed-of-light-one-trillion-frames-per-second-9742/
https://www.theatlantic.com/technology/archive/2011/12/camera-captures-speed-light/334378/

7 – dots on dice - https://en.wikipedia.org/wiki/Dice#Construction
https://www.quora.com/Why-do-opposite-sides-of-a-die-always-add-to-7

6 – night rainbow - https://en.wikipedia.org/wiki/Moonbow
http://optics.kulgun.net/Rainbow/rainbow-faq.shtml#a19

5 – pocket sized sun or black hole - http://www.space.com/21420-smallest-star-size-red-dwarf.html
https://en.wikipedia.org/wiki/Micro_black_hole#Minimum_mass_of_a_black_hole
http://angelsanddemons.web.cern.ch/faq/black-hole
http://www.space.com/5191-smallest-black-hole.html

4 – Uranus name - http://coolcosmos.ipac.caltech.edu/ask/136-How-did-Uranus-get-its-name-
http://www.universetoday.com/18958/name-of-uranus/

3 – 2 suns or moons - http://science.howstuffworks.com/science-vs-myth/what-if/what-if-earth-two-suns.htm
http://www.livescience.com/33500-earth-two-suns-tatooine.html
http://www.universetoday.com/92148/what-if-the-earth-had-two-moons/

2 – why ear lobes - https://www.quora.com/Is-there-an-evolutionary-advantage-to-having-ear-lobes
https://www.quora.com/What-is-the-use-of-ear-lobes
https://www.reference.com/science/purpose-earlobes-20008aadfdf9e42e#

1 – how Korea split - http://news.sky.com/story/korea-a-history-of-the-north-south-split-10449691
https://www.youtube.com/watch?v=l0E9Kel8BtE
https://en.wikipedia.org/wiki/Division_of_Korea#Soviet_occupation_of_North_Korea