QUARKS TO QUASARS

QtoQ - Story - Exhibit List:
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19
20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35
WHAT'S THE SAME IN A MIRROR WORLD?

    
     In the other activity students try to figure out which of two universes has mirror symmetry. Two boxes represent the universes which are composed of a number of left- and right-handed screws. One universe has an equal number of left- and right-handed screws; the other does not. The text compares this situation with the fact that while physicists expect to find the same number of left- and right-handed neutrinos in the universe, they have found only left-handed neutrinos. Also, similar to Where's Waldo?, there is a graphic of a large number of identical cartoon characters with the exception that one has her left hand raised and all the others the right hand. Students try to find the left-handed girl.