Inventions aren't always easy. Sometimes a humble leaf can get in the way. Developers have learned that one of the big hold ups in the creation of self driving cars is teaching the cars to recognize changes in foliage as they drive the same routes each day.

Scientists have developed a flexible medical sensor using electrodes and regular chewing gum.

Odd Science: Inventions is filled with weird and wacky facts that you've never heard before. Read about the trainers made of spider silk, wonder at the first record played in space and tell your friends about the robot built in 1937.

There are facts about electricity being used as glue, facts about glow-in-the-dark cats and facts about nano-robots that can 'swim' inside the body during biopsies!

James Olstein beautifully illustrates these odd facts, and more, in a retro-inspired, quirky style. His designs aren't meant to be taken literally, but you'll laugh out loud when you see a walking trash can and wind towers made of carrots!

Prepare to laugh, marvel and learn.

Being a geek has never been so cool.