Einstein

Einstein was a pack in the Poptropica Store. It included two items - a book called Who Was Albert Einstein? and a costume so you could look like Albert Einstein. It came out to commemorate the anniversary of Albert Einstein's birthday. When you press the space bar, his world-famous equation, $$e=〖mc〗^2$$ comes out in a thought bubble.

Thinknoodles likes to wear the grey hair from this costume.