Last night's NBC Tonight Show with Jimmy Fallon
had a segment (11 minutes in) with kids showing off their inventions.
Sandwiched between the short boy with the inflatable shoe soles for height emergencies
and the girl with the strap-on Hula Hoop catchers, there was a girl who caught the attention
of Google for her setup for detection of lead in water, using carbon nanotube electrodes
in a chlorine solution, sending resistance measurements by BlueTooth to her custom
MIT App Inventor monitor app.
The App Inventor app seemed to floor Jimmy Fallon more than the chemistry.