The electrical grid requires supply and demand to be matched in real time — imbalance causes outages.

Volcanic ash can damage engines and machinery.

Fact #834 · Technology

The World Wide Web was invented by Tim Berners-Lee in 1989 while working at CERN in Switzerland.

Fact #4358 · Technology

The first computer mouse was made of wood — Douglas Engelbart built it in 1964.

Fact #3939 · Technology

Your phone can still track your location even without GPS using signals.

Fact #2756 · Technology

More than 90% of the world's currency exists only digitally — not as physical cash.

Fact #3800 · Technology

The transistor, invented in 1947, made modern computers possible by replacing bulky vacuum tubes.

Fact #4359 · Technology

The Three Gorges Dam is one of the largest hydroelectric dams in the world.

Fact #1511 · Technology

An astronaut's suit for spacewalk (EVA) costs approximately $12 million.

Fact #4595 · Technology