BY: BHARAT EXPRESS

Accidental Inventions That Changed the World

An engineer working on military radar noticed a radar beam had completely melted the chocolate bar in his pocket.

The Microwave

An inventor grabbed the wrong size electrical resistor out of a box and accidentally built a device that could mimic a human heartbeat.

The Pacemaker

A frustrated chef sliced potatoes paper-thin and fried them to a crisp just to spite a customer who kept complaining his fries were too thick.

Potato Chips

A scientist trying to create an ultra-strong aerospace adhesive accidentally made a weak glue that stuck gently without damaging surfaces.

Post-It Notes

A messy biologist returned from a two-week vacation to find that a weird mould growing in his petri dish had completely destroyed harmful bacteria.

Penicillin

A Swiss engineer went for a hike and wondered why cockleburr seeds stuck so stubbornly to his dog’s fur and his own wool trousers.

Velcro

A naval engineer dropped a specialised mechanical spring and watched it walk its way down a pile of books.

The Slinky