Neat idea: make PDAs transparent so you can put the touch screen on the back side, and still see where your fingers are to select stuff. That leaves the front side able to display everything, means ...
NPR's Juana Summers talks with Regina Barber and Emily Kwong of Short Wave about "scuba-diving" lizards, a trick to turn a mouse's skin transparent and whether finger counting helps kids' math skills.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback