Antigravity Advocate Mugs

"Sigurd advocates civil disobedience relating to the 'law of gravity'."

Apples for sale

Due to his low center of gravity, Jake is the greatesr broncbuster ever!

Intelligent people laugh too!

Newton discovers gravity and apple sauce in the same day.

Head over Hooves

'You forgot to pay the gravity bill, didn't you?'

'I'm just not sure how much more I can teach you.'

'Gravity...Go figure!'

"What's your project for the science fair, Arnold?"

Emergency exit into Space

"How long were you in that headstand?"

Newton's Cradle Solar System

"I got an 'A' for my anti-gravity science project!"

"What if Newton came up with a different idea from a fallen apple."

"Bonk!"

Astronaut runs on spinning asteroid to reach space shuttle's tether.

"I've thought about retiring, but there's a great deal of gravity under this chair."

The earlier, less publicized discovery of gravity by Corblatt.

The sad fate of Isaac Newton's Tahitian counterpart.

His and Hers Gravity Bars.

A Newton's cradle wrecking ball.

Maitre d' to astronaut couple entering restaurant: 'Gravity or no-gravity?'

Einstein's brother developed the theory of 'relativism'.

kid skateboards off airplane wingtip

Newton's vacation

Newton discovers anti-gravity,

'There goes another one. Galileo, don't you have any idea what makes them do that?'

"Bear in mind there are three laws in this gym we cannot ignore: health, safety and gravity."

The Soundness of Newton's Laws

These upside-down tomato planters simplify everything. But, dad. Mother nature wants plants to grow upwards. Sez who?

"Galileo soon modified his gravity experiments" "Ready to catch it?"

'So much for Newton. Now, as for Einstein...'

"Galileo, I've had about enough of all your gravity experiments!"

'Now I don't know what it's like in New York, but this is Kansas city, and we follow the laws of physics out here.'