Resin cast of arteries in the brain. Your brain consumes about 20% of your body's energy so it needs a lot of blood flow to keep it supplied with nutrients. Even knowing that, the density of the neurons here amazes me--they look almost the size of the brain itself!
The clock is made of clay ceramic which has been fired to around 1250 C. degrees to show its true pure whiteness. The minimal and sleek design will look good in most modern homes and offices. It also comes with a black board marker, which you can use to write and re-write as much and as frequent as you like!