Trivia

Hard

The Most Accurate Clock Built To-Date Relies On?

Higgs Boson Particles
Quantum Entanglement
Lasers
Quartz Crystals

Answer: Lasers

Since the mid 1950s, when the first atomic clock radically increased the accuracy of timekeeping beyond simply trying to synchronize quartz-crystal clocks to the movement of the Earth around the Sun, there has been a continual drive to refine and improve atomic timekeeping.

For decades atomic clocks relied on the use of microwave radiation to excite electrons and measure the oscillation of electrons in hydrogen-1, cesium-133, and rubidium-87 atoms and many of the atomic clocks around the world still use this reliable and time-proven mechanism. Despite significant improvements to the microwave model over the last sixty years (the microwave-based atomic clocks get better by a factor of ten roughly every decade), they have been surpassed by new technology.

Recent refinements, building on research efforts started back in the 1990s, have yielded an atomic clock that uses cooling and lasers (known as optical-lattice clocks) to increase the precision in which the atoms can be monitored and interacted with. How much more precision? The best optical clocks researchers have created to date are so precise that if run for the entire age of the universe the clock would lose no more than a second.

More Trivia Questions

Trivia

Hard

What Was The First Freeware Application?

Trivia

Easy

What Early Soft Drink Brand Lives On As A Slang Term?

Trivia

Hard

Weird Al Yankovic Started A High School Club Devoted To What As A Bid To Get Extra Yearbook Photos?

Trivia

Easy

The First Large Mammals Sent To Space That Survived Were?

Trivia

Hard

What Media Playback Button’s Symbol Is Derived From Musical Notation?

Trivia

Very Hard

The First Handheld Game System To Use Interchangeable Cartridges Was The?

Trivia

Hard

The Intervention Of What Led To A Total Restructuring Of British Radio In The 1960s?

Trivia

Easy

Skimmers Are Used To Capture What Kind Of Data?

Trivia

Hard

SeaWorld Was Originally Intended To Be A?

Trivia

Hard

Who Is The Person Behind The Generic Silhouette in Microsoft Outlook 2010’s Contacts?