How Science Can Help You Find a 4-Leaf Clover - Instant Egghead #64

As legend it has it, finding a four-leaf clover is supposed to be a sign of good luck. If we put our collective scientific knowledge to the task, however, we stand a better chance of finding a lucky charm. Scientific American editor Eric R. Olson explains. 
USDA Plant Fact Sheet for White Clover
http://plants.usda.gov/factsheet/pdf/fs_trre3.pdf
The Odds of Finding a Four-Leaf Clover Revisited: How Do Some People Find So Many?!

http://blog.minitab.com/blog/adventures-in-statistics/the-odds-of-finding-a-four-leaf-clover-revisited-how-do-some-people-find-so-many

What Can You See in a Single Glance
and How Might This Guide Visual Search
in Medical Images?

http://search.bwh.harvard.edu/new/pubs/drew_2013_Radiographics.pdf

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Видео How Science Can Help You Find a 4-Leaf Clover - Instant Egghead #64 канала Scientific American