I Almost Learned To Fly A Jetpack

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Gravity Industries make jetpacks. Theyre not practical. Theyre not meant for mass use. But they are a lot of fun. They asked if I wanted to try flying one. Thanks to gravity.co/ — this is not sponsored but, obviously, they did give me a flight in a jetpack.

Gravitys YouTube channel: www.youtube.com/channel/UCkHr2Z0JWH8KGmQNDp4QXLw
Pilot Sam landing on my hand: www.youtube.com/watch?v=-Ch2vHah_Os

Filmed safely: www.tomscott.com/safe/

Camera by Simon Temple templefreelance.co.uk/
Edited by Michelle Martin @mrsmmartin
Audio mix by Graham Haerther

Im at tomscott.com

on Twitter at twitter.com/tomscott

on Facebook at facebook.com/tomscott

and on Instagram as tomscottgo

A Brief History of Timekeeping | How Humans Began Telling Time | EXPLORE MODE

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#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

www.youtube.com/watch?v=eZ_r1H9vHkI

Sources:
www.sciencedaily.com/releases/2013/03/130314085052.htm
www.nbcnews.com/science/science-news/ra-romans-used-ancient-egypt-obelisk-sundial-flna2D11826215
blogs.scientificamerican.com/roots-of-unity/the-joy-of-sexagesimal-floating-point-arithmetic/
www.britannica.com/science/sexagesimal-number-system
en.wikipedia.org/wiki/Water_clock
science.howstuffworks.com/environmental/green-tech/sustainable/water-powered-clock1.htm
www.explainthatstuff.com/quartzclockwatch.html
electronics.howstuffworks.com/gadgets/clocks-watches/quartz-watch.htm
science.howstuffworks.com/question40.htm
www.livescience.com/32660-how-does-an-atomic-clock-work.html
www.nature.com/articles/s41586-018-0738-2

Produced by Sofia K.
Edited by Amanda Lee

[BadComedian] - ЧУЖОЙ: Завет (Alien Vs. Дебилы)

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#BadComedian обзор фильма ЧУЖОЙ 6 ЗАВЕТ.
Поддержать создание обзоров — thebadcomedian.ru/Za_Alien
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Группа ВК — vk.com/badcomedian
Страница FB — www.facebook.com/thebadcomedian
Твиттер — twitter.com/EvgenComedian
Инстаграм — instagram.com/evgenbad
Основной канал — www.youtube.com/TheBadComedian
Второй Канал — www.youtube.com/EvgenComedian
Гугл ПЛЮС plus.google.com/ TheBadComedian/
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Введение в астрономию. Конфигурации планет. Луна.

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Лектор — Дмитрий Осипов, кандидат физико-математических наук, окончил Физтех в 1985 году. В настоящее время работает преподавателем на кафедре теоретической физики МФТИ.

На лекциях можно будет получить знания в области одной из самых старых традиционных наук — астрономии. В программе происхождение и история астрономии, ее связь с современными естественными науками, а также со средневековыми областями знания, которые сегодня ассоциируются с гуманитарным образованием. Слушатели курса узнают о рождении Вселенной, темной материи, войдах и галактиках, видимом и невидимом свете, эффекте Доплера и многом другом.