When scientists want to understand something they will often use an experimental “unit” and a control “unit”. And when studying something if you have a second copy around then you can control for more kinds of factors. And when it comes to people identical twins are the closest you can get to a second copy.
Saturday, April 11, 2015
Friday, April 3, 2015
A few weeks ago I took part in an outing that took the MetroLink from Lancaster down into Downtown Los Angeles. On the weekend you can ride unlimited for $10. This includes not just MetroLink, but the other rail lines in the L.A. area. (It also includes some of the bus lines down there as well.) So you could ride from Lancaster to Oceanside then back again all for $10.