Ancient Roman units of measurement
In Roman timekeeping, a day was divided into periods according to the available technology. Initially the day was divided into two parts: the ante meridiem (before noon) and the post meridiem (after noon). With the advent of the sundial circa 263 BC, the period of the natural day from sunrise to sunset was divided into twelve hours. (Wikipedia).
The way how to show time using clocks. It is 12 hours video you can use as a screensaver on clock, every number changing is completely random. Please enjoy.
From playlist Timers
From Sundials to Atomic Clocks: How the Universe Shapes Our Understanding of Time
Clocks: In a world of booked calendars and packed schedules, it’s hard to imagine life without them. But as it turns out, we’ve been telling time long before their invention. For millennia, people have used the stars to understand and organize the movement of time. » Subscribe to Seeker!
From playlist Constellations | Seeker
Mars...the Final Frontier. Or wait, isn't that space? Or Alaska? Anyways, time systems work on Mars in a somewhat similar but still unique way to timekeeping on earth. This video has a little bit of history, a little bit of astrology, a little bit of horology, a little bit of everything.
From playlist That Wikipedia List
The history of keeping time - Karen Mensing
View full lesson: http://ed.ted.com/lessons/the-history-of-keeping-time Where did time-telling come from? What are time zones and why are there so many of them? Get the answers to these questions and more in this journey through the history of time -- from sundials to hourglasses to moder
From playlist Even More TED-Ed Originals
Time | Physics - Ep 1 (Newtonian)
We can predict the future. Physics and calculus allow us to watch objects change over time and space. This means we can go beyond looking at what is happening and peer in the past and make predictions about the future. Time is an important part of the study of physics. The evolution of tim
From playlist Time
The Italian Calendar: Seasons, Months of the Year, and Days of the Week
We humans have built a lot of time-based social constructs for ourselves. Some are based on things we can observe, like the seasons, and one year being the cycle that repeates them. But things like months and days are completely arbitrary. Nevertheless, we have to learn them in order to co
From playlist Italian
Calendars | Introductory Astronomy Course 1.11
Welcome to Astronomy: Exploring Time and Space, a course from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona. Learn about the foundations of astronomy in this free online course here on YouTube. This video is part of module 1, Science and Hi
From playlist Introductory Astronomy Module 1: Science and History
Teach Astronomy - Early Calendars
http://www.teachastronomy.com/ A calendar is a way of keeping track of the days in a year or the time it takes for the Earth to go from one place in its orbit to the same place one orbit later. The first calendars date back 5000 years to the Babylonian and Egyptian Cultures. The earliest
From playlist 02. Ancient Astronomy and Celestial Phenomena
What is a second: from fizzics.org
The second is the International base unit of time but how is it defined? Here is an explanation.
From playlist Units of measurement
Medieval and Islam | History and Philosophy of Astronomy 3.03
Learn about the history and philosophy of astronomy from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona, with our Knowing the Universe: History and Philosophy of Astronomy course here on YouTube. This video is part of module 3, Revolutions.
From playlist History and Philosophy Course Module 3: Revolutions
What math should you know to become a better C++ programmer, and how can you use C++ to become better at math? Let’s revisit some basic facts about numbers known since antiquity and taught to us in school a long time ago, but from a modern C++ programmer’s perspective! EVENT: StockholmC
From playlist C++
Evaluating Time Series Models : Time Series Talk
How do we evaluate our time series models? How can we tell if one model is better than another?
From playlist Time Series Analysis
From Sundials to Crystals: A Brief History of Timekeeping
How did early humans keep time, and what exactly is a "leap second?" Join Michael Aranda on SciShow as we dive into the long and strange history of timekeeping. Let's go! ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out
From playlist SciShow Infusion
We Used to Keep Time Using Giant Balls (NYE Ball Drop Explanation)
SUPPORT CR on PATREON: http://bit.ly/2qBHcvf Every New Years in the US, we watch giant glowing balls drop from towers to mark the change of year. When you actually stop and think about it, this is a rather odd ritual – but it's rooted in past timekeeping methods. In the mid-1800s, no one
From playlist Concerning History
0204 [ C++/React/Redux ] !game server performance improvements (see also: !recap)
This is #204 in my series of live (Twitch) coding streams. This stream I worked on replacing expensive polling loops in my game servers with scheduled timeout callbacks. Notebook page: https://tinyurl.com/y3wzovxt -- Watch live at https://www.twitch.tv/rhymu8354
From playlist Excalibur
0028 - C++ programming: Developing a Web Server from scratch
This is #28 in my series of live (Twitch) coding streams, working on writing my own web server and service framework in C++. This stream I added the concept of "time" to the web server, so now it will time out requests that take too long, connections that stay idle too long, or requests t
From playlist Excalibur
Teach Astronomy - Divisions of Time
http://www.teachastronomy.com/ The simplest division of time used by hunter-gatherers was to divide the day into the time when the sun was rising, ahead of the Meridian, and the time the sun was setting, beyond the Meridian. We still use that terminology. "AM" means "Anti-Meridian," or b
From playlist 02. Ancient Astronomy and Celestial Phenomena
Oscillating Timekeepers - Physics - Pendulum (Time Activity)
Crystals and atoms are now our standard for timekeeping. The use of pendulums started the progression to using clocks that keep track of their own oscillations. We will be releasing a supplemental PDF soon. Shortly we will release a video with details explaining how to build the pendulum
From playlist Time
Joshua Foer - A Minor History of Time Without Clocks - G4G12 April 2016
Carl Linnaeus's horologium florae, or flower clock, and other methods of telling time based on nature.
From playlist G4G12 Videos
0059 - [ C++ ] Making a Twitch bot
This is #59 in my series of live (Twitch) coding streams, working on various projects in C++. This stream I continued working on my "Twitch" library to be used in connecting to Twitch chat and web services. I got a solid base for the Messaging class down. -- Watch live at https://www.twi
From playlist Excalibur