Gravitational Guru Mugs

Why the moon hates the beach.

Apples for sale

"Just another 50 decibels on your grunt and we can start to think about letting you hit a few balls!"

"Trust me, Lew, if anyone knows where the salmon are jumping, she does!"

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

Intelligent people laugh too!

"Counsel for prose is overruled. Poetry, you may continue."

'But what is the universe for?'

'Sure beats your cupping your ear!'

"Now, suppose some guy comes at you balanced between two blocks."

Newton's Cradle Solar System

"Bonk!"

Getting through the week.

"Objection! Pummelling the witness."

"Lighten up! Your charts aren't that bad."

His and Hers Gravity Bars.

'Don't blame the lawyer!'

100k Desert Crawl

Trying to describe the size of the Big Bang.

'Astronomy I, Astronomy II, Astronomy III'

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

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

Newton discovers anti-gravity,

A not-so-happy God, with the Humans, sticking an Eviction Notice to the Earth

'And so thanks to my dad's waistline I now understand the theory of our constantly expanding universe!'

Man read's Newton's 'Philosophiae Naturalis Principa Mathematica' and says: 'Blimey Isaac, this is, er, pretty heavy stuff.'

Descendant of Galileo disproving the theory that computers double in speed every twelve months.

If Sir Issac Newton and William Tell were brothers, gravity would never have been discovered.

''Not guilty'? -- oh, in denial, are we?'

Galileo's Attempt to discover is heavier dog falls faster than lighter dog.

'How did my Chinese ancestors keep from falling off the earth before Mr Newton invented gravity?'