tomscott.com — @tomscott — Remember the «dumbest dot-com», AllAdvantage? They paid you to surf the web, at least for a while. And one day, they announced that they were incredibly popular in rich Beverly Hills, California. The reason connects them to the US Postal Service… and Jason Priestley.
#Timekeeping #History #ExploreMode
A lot goes on in just 24 hours. But why is a day divided in 24 hours in the first place? Who decided how we would calculate it?
Today, time is tucked away in our pockets, just an unlock button away. It drives our technology, with atomic clocks being responsible for precise GPS location services and speedy internet search results.
Our ancestors, on the other hand, didn’t have it that easy. Time for them was written in the stars, in the sunrise and sunset, in the moon’s waning and waxing.
So how did we go from looking up to celestial bodies to looking down at our phones for time? What other timekeeping methods did ancient humans use before watches and clocks became ubiquitous? And what the heck is an atomic clock?
You’re watching Explore Mode and today, we are diving into time, and how humans developed technologies to measure it.
01:20 Telling time through stars, celestial bodies, and sundials
02:03 Candle clocks and incense clocks / How did candle clocks work?
03:32 Sexagesimal system explained / Why is time divided in the 60s?
04:45 How do waterclocks work? The clepsydra.
06:13 Origin of mechanical clocks
07:06 How do quartz clocks work?
08:17 How do atomic clocks work?
A Brief History of Timekeeping | How Humans Began Telling Time | EXPLORE MODE
Music:
Willow and the Light, Wholesome, Stompdance and Covert Affair
Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 creativecommons.org/licenses/by/3.0/
Medieval Song Village Consort
Always No Copyright Music | Free Music for Everyone
If youre a masters or PhD student from an ESA member state, and zero-g sounds like your thing, have a look at the Fly Your Thesis program: www.esa.int/Education/Fly_Your_Thesis — the 2017-18 submissions are closed, but that just gives you time to start planning for next year…
techdif.co.uk — Were back! We start with the tale of Thomas Trueblood, rapidly steer off into the 1904 Olympic marathon — perhaps the most ridiculous Olympic race ever — and then have a quick discussion about a man called Jam Handy. Get your mystery biscuits ready.
A web app that works out how many seconds ago something happened. How hard can coding that be? Tom Scott explains how time twists and turns like a twisty-turny thing. Its not to be trifled with!
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Что общего у иероглифов и эмоджи? Можно ли сделать универсальный язык целиком из символов, без букв? Как такой язык сможет изменить наше мышление? Каким должно быть идеальное послание инопланетянам?