An 11 year old Tennessee girl recently found a way to instantly detect lead in water, cutting the time it used to take to do so drastically. Previously, you had to take a water sample and send it off to a lab for analysis, now all you need is her contraption and a smartphone. She discovered her solution when she read about a new type of nanotechnology on MIT’s website, and imagined its new application in its new context.
Here’s how it works:
“Her test device, which she has dubbed “Tethys,” uses a disposable cartridge containing chemically treated carbon nanotube arrays. This connects with an Arduino technology-based signal processor with a Bluetooth attachment. The graphene within the nanotube is highly sensitive to changes in flow of current. By treating the tube with atoms that are sensitive to lead, Rao is able to measure whether potable water is contaminated with lead, beaming the results straight to a Bluetooth-enabled smartphone. When it detects levels higher than 15 parts per million, the device warns that the water is unsafe.”
Why it’s hot:
1) Never let “can we do this” stop you
2) Never let “how can we do this” stop you
3) Some of the best solutions come when you put two (or more) things together
This offers a good lesson in a few important ingredients for innovation – how much you care, how much you believe, and how creative you can be. When all are high, you can create amazing things. Know what’s possible, believe that anything is, and let nothing stop you. Let’s do it.