Understanding Hook and Loop

Why was the original video taken down and re-released?

• The video quality was poor.

• It contained incorrect information about the product name.

• It was too long and needed editing.

• The creators wanted to add new content.

Who is credited with inventing the hook and loop fastener?

• Thomas Edison

• George Demestral

• Alexander Graham Bell

• NASA

What inspired George Demestral to invent hook and loop?

• Observing burrs sticking to his dog's fur

• A visit to a fabric factory

• Reading a scientific journal

• A trip to NASA

How does the hook and loop mechanism work?

• Magnets attract each other.

• Hooks catch onto loops to stick together.

• Static electricity holds them together.

• Glue is used to bond surfaces.

What experiment did the creators conduct to test the strength of hook and loop?

• They used it to lift a car.

• They suspended a person from a digger.

• They used it to climb a wall.

• They tested it underwater.