Between

According to NASA researchers, an optimal nap will last between 20-30 minutes and a perfect nap will last exaclty 26 minutes.

According to NASA researchers, an optimal nap will last between 20-30 minutes and a perfect nap will last exaclty 26 minutes.

The chocolate layers between the wafer layers in a Kit-Kat bar is made of crushed up Kit-Kat bars that didn't make it past quality control.

The chocolate layers between the wafer layers in a Kit-Kat bar is made of crushed up Kit-Kat bars that didn't make it past quality control.

Peter Durand patented the tin can in 1810. Ezra Warner patented a can opener in 1858. In between, people used chisels and hammers.

Peter Durand patented the tin can in 1810. Ezra Warner patented a can opener in 1858. In between, people used chisels and hammers.