By: Chris Spurgeon

The altitude at which air travel ends and space travel begins

By: Chris Spurgeon

Littlewood’s law

By: Chris Spurgeon

Van der Waal’s attraction

By: Chris Spurgeon

Celsius temperature

By: Chris Spurgeon

Hooke’s Law

By: Chris Spurgeon

Fisherian runaway selection

By: Chris Spurgeon

Miura fold

By: Chris Spurgeon

Newton’s rings

By: Chris Spurgeon

Mendoza Line

By: Chris Spurgeon

Drake Equation