Five Tulsa Girl Scouts calling themselves the "Supergirls" are showed off their invention at the White House Monday.
The girls from Troop 411 wanted to make it easier for people who have disabilities that have a tough time turning the pages of a book. So they designed and built a battery powered page turning device, using Legos.
The girls got to showed off their project at the White House Science Fair.
President Obama told them their brainstorming was more impressive than his.