Shopping cart wheels are made from the same material as roller coaster wheels. Every cart must be tough enough to haul groceries for a decade. At a cost of $100 each, shop owners are keen to keep these rugged buggies on the job. Meet the hidden device that helps keep them out of the hands of thieves and close to home. MACHINES: HOW THEY WORK Thursdays 10/9c on Science http://www.sciencechannel.com/tv-shows/machines-how-they-work/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq

We countdown some of the world’s largest and most awe-inspiring construction projects, from 200-storey buildings and 30km bridges, to complex rail tunnels and super-sized airports. Enjoy! See the full article on this video including images, quotes and useful links here: http://www.theb1m.com/video/top-5-massive-construction-projects For more videos like this from The B1M subscribe now - http://ow.ly/GxW7y The B1M is the definitive video channel for building information modelling (BIM). We want to inspire a million people through our videos to help mobilise BIM adoption around the world. View this video and more at http://www.TheB1M.com Follow us on Twitter - http://www.twitter.com/TheB1M Like us on Facebook - http://www.facebook.com/TheB1M Follow us on Linkedin - https://www.linkedin.com/company/the-... B1M pictures on - http://instagram.com/theb1m/ Images used courtesy of Adrian Smith and Gordon Gill Architecture (Kingdom/Jeddah Tower, Saudi Arabia), Canal De Panamá (Panama Canal, Panama), Baycrest, IABSE and China Harbour Engineering Company (Hong Kong-Macao-Zhuhai Bridge, China), Zaha Hadid Architects (Beijing Daxing International Airport, China), Crossrail and BBC (Crossrail, United Kingdom). Data and project statistics sourced from Adrian Smith and Gordon Gill Architecture and Wall Street Journal (Kingdom/Jeddah Tower, Saudi Arabia), Canal De Panamá (Panama Canal, Panama), Arup Group and Wall Street Journal (Hong Kong-Macao-Zhuhai Bridge, China), Reuters and Huffington Post (Beijing Daxing International Airport, China) and Crossrail (Crossrail, United Kingdom). We welcome you sharing our content to inspire others, but please be nice and play by our rules: http://www.theb1m.com/guidelines-for-... Our content may only be embedded onto third party websites by arrangement. We have established partnerships with domains to share our content and help it reach a wider audience. If you are interested in partnering with us please contact Enquiries@TheB1M.com. Ripping and/or editing this video is illegal and will result in legal action. © 2016 The B1M Limited | Share + Inspire

Could we one day live on Mars? Reid Reimers explains Mars One could help colonize the red planet. Hosted by: Reid Reimers ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Linnea Boyev, Tomasz Jonarski, Chris Peters, Philippe von Bergen, Will and Sonja Marple, and Mark Terrio-Cameron. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.mars-one.com/ http://www.mars-one.com/faq/mission-to-mars/what-will-the-astronauts-do-on-mars http://www.mars-one.com/faq/health-and-ethics/will-the-astronauts-have-enough-water-food-and-oxygen http://www.mars-one.com/technology/living-unit http://www.mars-one.com/technology/life-support-unit http://www.space.com/24052-incredible-tech-mining-mars-water.html http://www.nasa.gov/feature/can-plants-grow-with-mars-soil http://www.space.com/16903-mars-atmosphere-climate-weather.html http://techport.nasa.gov/view/33080 http://www.sciencetimes.com/articles/6342/20150514/humans-may-not-have-to-carry-oxygen-to-mars.htm http://www.sciencedirect.com/science/article/pii/S0094576515004294 http://www.extremetech.com/extreme/191862-the-first-mars-one-colonists-will-suffocate-starve-and-be-incinerated-according-to-mit Images: https://en.wikipedia.org/wiki/Atmosphere_of_Mars#/media/File:PIA19088-MarsCuriosityRover-MethaneSource-20141216.png https://en.wikipedia.org/wiki/Atmosphere_of_Mars#/media/File:MarsSunset_losslesscrop.jpg

We ve reached peak lens flare. Vox s Phil Edwards explains how it happened. Follow Phil Edwards and Vox Almanac on Facebook for more: https://www.facebook.com/philedwardsinc1/ Subscribe to our channel! http://goo.gl/0bsAjO Lens flare: it s familiar from the very shiny work of J.J. Abrams, but it goes far beyond his flare-strewn canon. Lens flare has a long history and a lot of different meanings. Vox.com is a news website that helps you cut through the noise and understand what s really driving the events in the headlines. Check out http://www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: http://goo.gl/IZONyE Follow Vox on Twitter: http://goo.gl/XFrZ5H Or on Facebook: http://goo.gl/U2g06o

Shop the gear in this video at my store; Robinet Outfitters ➡️ https://robinetoutfitters.com/ Equip yourself with the best, highest quality bushcraft products and support the creation of future videos by shopping at Robinet Outfitters. Browse below! ↪️ Cover & Shelter; https://robinetoutfitters.com/collections/cover-shelter ↪️ Knives & Axes; https://robinetoutfitters.com/collections/cutting ↪️ Clothing; https://robinetoutfitters.com/collections/clothing -- This is the first video in a new "Budget Knives" series. I will be looking at knives for Bushcraft, Survival, and EDC. The knife in this video is the CIMA http://goo.gl/yWPtM1 http://goo.gl/O8vkO1 http://goo.gl/K6T0lv Bushcraft Courses http://www.northgatebushcraft.com/ Facebook https://www.facebook.com/Joe-Robinet-Bushcraft-260005731008348/?ref=hl Instagram https://instagram.com/joerobinetbushcraft/ Twitter https://twitter.com/Robinet_Joe

http://www.selfrelianceoutfitters.com http://astore.amazon.com/davecante-20 Dave Canterbury, David Canterbury, The Pathfinder School,Bush Craft ,Survival skills, Historical Lore, Primitive Skills, Archery, Hunting, Trapping, Fishing, Navigation, Knives, Axes, Fire, Water, Shelter, Search and Rescue

FOR ANYONE WHO WANTS TO HEAR THE VIKINGS PODCASTS I HAVE BEEN DOING WITH HISTORY, HERE IS THE LINK BELOW - http://www.history.com/shows/vikings/pages/vikings-podcast This video is just let you know what s been going on behind the scenes in case you were worried about the lack of content

One of the more traditional ways to hunt rabbits in Britain is to use ferrets. Hunting with Ferrets has been done for many years. In this episode of Totally Awesome Outdoors, Graeme & Mike head to a small farm in Hampshire to film Rob Pearson, who owns two ferrets named Winston and Napoleon. The way ferreting works, is you net as many holes in a rabbit warren as you can, and then put the ferrets down one of the holes. The ferret then works its way through the warren and finds a rabbit. The rabbit then bolts out into the open, and into one of the nets. We hope you enjoy this episode and be sure to check out some of the links below: ------------------------------------------------------------------------------------------------------- Watch more HUNTING & SHOOTING Videos: https://www.youtube.com/playlist?list=PLxnadpeGdTxA9cLOiKzBvynPzRZYOaInN ------------------------------------------------------------------------------------------------------ FILMING & CAMERA GEAR I USE: Main Camera: https://amzn.to/2SG9unv Drone: https://amzn.to/2WSQ1za Standard Lens: https://amzn.to/2E5LFxs Wide Angle Lens: https://amzn.to/2E3U6t0 Zoom Lens: https://amzn.to/2tfb4yl 50mm fixed Lens: https://amzn.to/2BvUAGN Main Camera Microphone: https://amzn.to/2I9tVVQ Secondary Camera Mic: https://amzn.to/2WYP3RQ Radio Microphone: https://amzn.to/2Ifqaym Camera Light: https://amzn.to/2MYA4mn Powerbank: https://amzn.to/2WYQVdk Tripod: https://amzn.to/2DtumVm GoPro Action Cam: https://amzn.to/2UPS9Wx GoPro Chest Mount: https://amzn.to/2tfCkwu GoPro Head Mount: https://amzn.to/2WWBra3 Camera SD Cards: https://amzn.to/2WVWcT5 Editing Laptop: https://amzn.to/2BtRK4S BUSHCRAFT GEAR I USE: Bushcraft Pants/Trousers: https://amzn.to/2SFY8jf 3x3 Metre Tarp: https://amzn.to/2IjM4Az Hammock: https://amzn.to/2N0Vpvx Hammock underblanket: https://amzn.to/2GmeBmT Thermal Camping Air Mattress: https://amzn.to/2N0uQXs Awesome Affordable Bushcraft Knives: https://amzn.to/2SLhWle Medium Axe: https://amzn.to/2E5NBWK Gransfors Bruks Small Forest Axe: https://amzn.to/2E5FkC1 Small Hatchet: https://amzn.to/2I319Gb Affordable Firesteel: https://amzn.to/2N1D3L8 Folding Camp Grill: https://amzn.to/2BvF6lM Durable GPS Watch: https://amzn.to/2N1fQZl These are Amazon associate links and help to support my channel. -----------------------------------SOCIAL MEDIA------------------------------------------------ Facebook → https://www.facebook.com/totallyaweso... ------------------------------------------------------------------------------------------------------ Check out our other YouTube Channel: TOTALLY AWESOME FISHING: https://www.youtube.com/user/TAFishing

More pictures from Flo s Great Grandfather: https://imgur.com/a/R1T92 It s chair of wisdom time again and this week we talk about the Russian Navy in the Baltic Sea, submarine warfare and trench mortars. » HOW CAN I SUPPORT YOUR CHANNEL? You can support us by sharing our videos with your friends and spreading the word about our work.You can also support us financially on Patreon: https://www.patreon.com/thegreatwar You can also buy our merchandise in our online shop: https://shop.thegreatwar.tv Patreon is a platform for creators like us, that enables us to get monthly financial support from the community in exchange for cool perks. » WHERE CAN I GET MORE INFORMATION ABOUT WORLD WAR I AND WHERE ELSE CAN I FIND YOU? We’re offering background knowledge, news, a glimpse behind the scenes and much more on: reddit: http://bit.ly/TheGreatSubReddit Facebook: http://bit.ly/WW1FB Twitter: http://bit.ly/WW1Series Instagram: http://bit.ly/ZpMYPL » CAN I EMBED YOUR VIDEOS ON MY WEBSITE? Of course, you can embed our videos on your website. We are happy if you show our channel to your friends, fellow students, classmates, professors, teachers or neighbours. Or just share our videos on Facebook, Twitter, Reddit etc. We are also happy to get your feedback, criticism or ideas in the comments. If you have interesting historical questions, just post them and we will answer in our OUT OF THE TRENCHES videos. You can find a selection of answers to the most frequently asked questions here: http://bit.ly/OOtrenches » CAN I SHOW YOUR VIDEOS IN CLASS? Of course! Tell your teachers or professors about our channel and our videos. We’re happy if we can contribute with our videos. If you are a teacher and have questions about our show, you can get in contact with us on one of our social media presences. » WHAT ARE YOUR SOURCES? Videos: British Pathé Pictures: Mostly Picture Alliance Background Map: http://d-maps.com/carte.php?num_car=6030&lang=en Literature (excerpt): Gilbert, Martin. The First World War. A Complete History, Holt Paperbacks, 2004. Hart, Peter. The Great War. A Combat History of the First World War, Oxford University Press, 2013. Hart, Peter. The Great War. 1914-1918, Profile Books, 2013. Stone, Norman. World War One. A Short History, Penguin, 2008. Keegan, John. The First World War, Vintage, 2000. Hastings, Max. Catastrophe 1914. Europe Goes To War, Knopf, 2013. Hirschfeld, Gerhard. Enzyklopädie Erster Weltkrieg, Schöningh Paderborn, 2004 Michalka, Wolfgang. Der Erste Weltkrieg. Wirkung, Wahrnehmung, Analyse, Seehamer Verlag GmbH, 2000 Leonhard, Jörn. Die Büchse der Pandora: Geschichte des Ersten Weltkrieges, C.H. Beck, 2014 If you want to buy some of the books we use or recommend during our show, check out our Amazon Store: http://bit.ly/AmazonTGW NOTE: This store uses affiliate links which grant us a commission if you buy a product there. » WHAT IS “THE GREAT WAR” PROJECT? THE GREAT WAR covers the events exactly 100 years ago: The story of World War I in realtime. Featuring: The unique archive material of British Pathé. Indy Neidell takes you on a journey into the past to show you what really happened and how it all could spiral into more than four years of dire war. Subscribe to our channel and don’t miss our new episodes every Thursday. » WHO IS REPLYING TO MY COMMENTS? AND WHO IS BEHIND THIS PROJECT? Most of the comments are written by our social media manager Florian. He is posting links, facts and backstage material on our social media channels. But from time to time, Indy reads and answers comments with his personal account, too. The Team responsible for THE GREAT WAR is even bigger: - CREDITS - Presented by : Indiana Neidell Written by: Indiana Neidell Director: Toni Steller & Florian Wittig Director of Photography: Toni Steller Sound: Toni Steller Sound Design: Marc Glücks Editing: Steven Roberts Motion Design: Philipp Appelt Research by: Indiana Neidell Fact checking: Markus Linke A Mediakraft Networks Original Channel Based on a concept by Spartacus Olsson Author: Indiana Neidell Visual Concept: Astrid Deinhard-Olsson Executive Producer: Spartacus Olsson Producer: Toni Steller & Florian Wittig Social Media Manager: Florian Wittig Contains licenced Material by British Pathé All rights reserved - © Mediakraft Networks GmbH, 2016

What’s more exciting than a spaceship? A spaceship on Fiya! NASA plans on playing with fire. Caitlin Hofmeister explains in this episode of SciShow Space! Hosted by: Caitlin Hofmeister ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Linnea Boyev, Tomasz Jonarski, Chris Peters, Philippe von Bergen, Will and Sonja Marple, and Mark Terrio-Cameron. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.popsci.com/military-aviation-space/article/2003-01/iss-learns-mirs-flame http://www.sciencelet.com/2013/08/why-do-flames-burn-upwards.html http://www.space.com/13766-international-space-station-flex-fire-research.html http://quest.nasa.gov/space/teachers/microgravity/MGprim1.html http://www.airspacemag.com/daily-planet/nasa-plans-light-fire-inside-spacecraft-then-watch-what-happens-180958165/?no-ist http://www.smithsonianmag.com/science-nature/in-space-flames-behave-in-ways-nobody-thought-possible-132637810/?no-ist https://www.nasa.gov/feature/fire-in-the-hole-studying-how-flames-grow-in-space http://www.nasa.gov/mission_pages/station/research/experiments/1918.html http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20150022123.pdf http://www.cbsnews.com/news/nasa-to-test-lighting-fire-in-space/ http://www.nasa.gov/mission_pages/station/research/experiments/1761.html Images: https://en.wikipedia.org/wiki/Fire#/media/File:Space_Fire.jpg https://www.youtube.com/watch?v=0JkQ12JluJ0 https://en.wikipedia.org/wiki/Mir#/media/File:Mir_after_Fire.jpg https://en.wikipedia.org/wiki/Mir#/media/File:Mir_diagram.svg

Movie Recipes is back! Thanks again to Dale Levitski and all the people at Sinema for the fantastic food in their gorgeous restaurant. Stay tuned for more Movie Recipes episodes coming soon! Make sure you check out Community Table, where you can see more on Dale and all the amazing dishes he prepared for us: https://youtu.be/ofQ37i7lc5Y If you find yourself hungry in Nashville, we highly recommend giving Sinema a try. http://www.sinemanashville.com Merch: https://teespring.com/stores/cinemasins-store

Please SUBSCRIBE NOW! http://bit.ly/BWchannel Watch More - http://bit.ly/BTgatorbite On this week’s Behind the Adventure, Coyote gives you a close look at the damage caused by his infamous ALLIGATOR BITE! In addition to showing you the fresh bite marks he will also discuss some of his first-aid practices for cleaning wounds while in the field. Let’s just start by saying…OUCH! Get ready for a behind the scenes look at another one of Coyote’s painful lessons! ...and if you haven t seen the full BITE episode yet click the following link to see the chomp everyone s talking about - http://bit.ly/BTgatorbite **NEVER ATTEMPT TO RECREATE WHAT YOU HAVE SEEN IN THIS VIDEO. PLEASE ALWAYS CONSULT A MEDICAL PROFESSIONAL BEFORE ADMINISTERING ANY KIND OF SELF TREATMENT** The Brave Wilderness Channel is your one stop connection to a wild world of adventure and amazing up close animal encounters! Follow along with adventurer and animal expert Coyote Peterson and his crew as they lead you on three exciting expedition series - Breaking Trail, Dragon Tails and Coyote’s Backyard - featuring everything from Grizzly Bears and Crocodiles to Rattlesnakes and Tarantulas…each episode offers an opportunity to learn something new! So SUBSCRIBE NOW and join the adventure that brings you closer to the most beloved, bizarre and misunderstood creatures known to man! GET READY...things are about to get WILD! New Episodes Every Tuesday at 9AM EST! Subscribe Now! https://www.youtube.com/BraveWilderness Find more info at: https://www.CoyotePeterson.com Coyote Peterson on Twitter: https://twitter.com/CoyotePeterson Coyote Peterson on Facebook: https://www.facebook.com/CoyotePeterson Coyote Peterson on Instagram: https://www.instagram.com/CoyotePeterson Coyote Peterson G+: https://plus.google.com/100310803754690323805/about

What if everyone became a vegetarian right now? Becoming Vegetarian for 21 Days: https://youtu.be/9iQKLSw15WM Subscribe for more: http://bit.ly/asapsci Written by Tyler Irving, Mitchell Moffit and Gregory Brown GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ FOLLOW US! Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube AsapINSTAGRAM: https://instagram.com/asapscience/ Facebook: http://facebook.com/AsapSCIENCE Twitter: http://twitter.com/AsapSCIENCE Tumblr: http://asapscience.tumblr.com Vine: Search "AsapSCIENCE" on vine! SNAPCHAT whalewatchmeplz and pixelmitch Created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz). Send us stuff! ASAPSCIENCE INC. P.O. Box 93, Toronto P Toronto, ON, M5S2S6 Further Reading / Sources: http://www.slate.com/articles/health_and_science/feed_the_world/2014/05/meat_eating_and_climate_change_vegetarians_impact_on_the_economy_antibiotics.html http://www.nationalgeographic.com/foodfeatures/feeding-9-billion/ https://en.wikipedia.org/wiki/Vegetarianism_by_country http://faostat3.fao.org/home/E http://www.fao.org/docrep/010/a0701e/a0701e00.HTM http://www.un.org/en/events/desertificationday/background.shtml http://www.fao.org/ag/againfo/resources/en/publications/tackling_climate_change/index.htm http://www3.epa.gov/climatechange/ghgemissions/global.html http://dels.nas.edu/resources/static-assets/banr/AnimalProductionMaterials/StehfestClimate.pdf http://www.unep.org/resourcepanel/Portals/24102/PDFs/PriorityProductsAndMaterials_Report.pdf http://waterfootprint.org/media/downloads/Report-48-WaterFootprint-AnimalProducts-Vol1.pdf http://www.pnas.org/cgi/doi/10.1073/pnas.1305827110 http://www.nature.com/news/humans-are-becoming-more-carnivorous-1.14282

The Russians want to relieve the pressure of their French allies at Verdun by starting a huge spring offensive near Lake Narroch. But this is not the only reason: The spring thaws are coming and the Germans on the Eastern Front have the high ground. At the same time, the epic struggle at Verdun is continuing: Neither the French nor the German Army can gain a decisive advantage at Fort Vaux. At sea, the British use the depth charge successfully for the first time and the German ship Greif tries to run the British Blockade. » HOW CAN I SUPPORT YOUR CHANNEL? You can support us by sharing our videos with your friends and spreading the word about our work.You can also support us financially on Patreon: https://www.patreon.com/thegreatwar You can also buy our merchandise in our online shop: https://shop.thegreatwar.tv Patreon is a platform for creators like us, that enables us to get monthly financial support from the community in exchange for cool perks. » WHERE CAN I GET MORE INFORMATION ABOUT WORLD WAR I AND WHERE ELSE CAN I FIND YOU? We’re offering background knowledge, news, a glimpse behind the scenes and much more on: reddit: http://bit.ly/TheGreatSubReddit Facebook: http://bit.ly/WW1FB Twitter: http://bit.ly/WW1Series Instagram: http://bit.ly/ZpMYPL » CAN I EMBED YOUR VIDEOS ON MY WEBSITE? Of course, you can embed our videos on your website. We are happy if you show our channel to your friends, fellow students, classmates, professors, teachers or neighbours. Or just share our videos on Facebook, Twitter, Reddit etc. We are also happy to get your feedback, criticism or ideas in the comments. If you have interesting historical questions, just post them and we will answer in our OUT OF THE TRENCHES videos. You can find a selection of answers to the most frequently asked questions here: http://bit.ly/OOtrenches » CAN I SHOW YOUR VIDEOS IN CLASS? Of course! Tell your teachers or professors about our channel and our videos. We’re happy if we can contribute with our videos. If you are a teacher and have questions about our show, you can get in contact with us on one of our social media presences. » WHAT ARE YOUR SOURCES? Videos: British Pathé Pictures: Mostly Picture Alliance Background Map: http://d-maps.com/carte.php?num_car=6... Literature (excerpt): Gilbert, Martin. The First World War. A Complete History, Holt Paperbacks, 2004. Hart, Peter. The Great War. A Combat History of the First World War, Oxford University Press, 2013. Hart, Peter. The Great War. 1914-1918, Profile Books, 2013. Stone, Norman. World War One. A Short History, Penguin, 2008. Keegan, John. The First World War, Vintage, 2000. Hastings, Max. Catastrophe 1914. Europe Goes To War, Knopf, 2013. Hirschfeld, Gerhard. Enzyklopädie Erster Weltkrieg, Schöningh Paderborn, 2004 Michalka, Wolfgang. Der Erste Weltkrieg. Wirkung, Wahrnehmung, Analyse, Seehamer Verlag GmbH, 2000 Leonhard, Jörn. Die Büchse der Pandora: Geschichte des Ersten Weltkrieges, C.H. Beck, 2014 If you want to buy some of the books we use or recommend during our show, check out our Amazon Store: http://bit.ly/AmazonTGW NOTE: This store uses affiliate links which grant us a commission if you buy a product there. » WHAT IS “THE GREAT WAR” PROJECT? THE GREAT WAR covers the events exactly 100 years ago: The story of World War I in realtime. Featuring: The unique archive material of British Pathé. Indy Neidell takes you on a journey into the past to show you what really happened and how it all could spiral into more than four years of dire war. Subscribe to our channel and don’t miss our new episodes every Thursday. » WHO IS REPLYING TO MY COMMENTS? AND WHO IS BEHIND THIS PROJECT? Most of the comments are written by our social media manager Florian. He is posting links, facts and backstage material on our social media channels. But from time to time, Indy reads and answers comments with his personal account, too. The Team responsible for THE GREAT WAR is even bigger: - CREDITS - Presented by : Indiana Neidell Written by: Indiana Neidell Director: Toni Steller & Florian Wittig Director of Photography: Toni Steller Sound: Toni Steller Sound Design: Marc Glücks Editing: Ole-Sten Hauffe, Toni Steller Motion Design: Philipp Appelt Research by: Indiana Neidell Fact checking: Markus Linke A Mediakraft Networks Original Channel Based on a concept by Spartacus Olsson Author: Indiana Neidell Visual Concept: Astrid Deinhard-Olsson Executive Producer: Spartacus Olsson Producer: Toni Steller & Florian Wittig Social Media Manager: Florian Wittig Contains licenced Material by British Pathé All rights reserved - © Mediakraft Networks GmbH, 2016

The skyline of Hong Kong... Recorded November 2015 in 4K (Ultra HD) with Sony AX100. Music: Mystic Crock - Nomad - 02 - Dhajala (part) http://mysticcrock.bandcamp.com Licensed via ilicensemusic.com -------------------------------------- Immerse yourself in Amazing Places on Our Planet without the distraction of words. New 4K video every Friday or every second Friday. Filmed and Edited by Milosh Kitchovitch (business inquiries: https://www.milosh9k.com/contact). YouTube: https://youtube.com/milosh9k Website: https://milosh9k.com Facebook: https://facebook.com/milosh9k Instagram: https://instagram.com/milosh9k Twitter: https://twitter.com/milosh9k More Amazing Places in 4K: https://www.youtube.com/playlist?list=PLwJH-XOKXh0g2FJ-6J5JuAowQd7R9M1lP

Rloop are currently just under 50% of the way to their funding goal with just 2 weeks left. If you would like to contribute to their cause you can follow this link: https://www.indiegogo.com/projects/help-build-rloop-s-pod-for-spacex-hyperloop-comp#/ Follow Real Engineering on facebook at: http://facebook.com/realengineering1 My Instagram: https://www.instagram.com/brianjamesmcmanus Once again thanks to Bensound.com for the amazing royalty free music. This time I used Bensound - New Dawn Stock Footage courtesy of Videoblocks.com Thank you to the Rloop team for allowing me to use their footage. For business and licensing contact me at: mcmanusbrian15@gmail.com

地震不僅無法預測，其足以讓各種建築坍塌的摧毀力更是令人擔憂。但說真的，你知道地震背後的成因、其致命性高的原因嗎？我們又該怎麼做才能把地震造成的傷害降到最低？

Subscribe - http://goo.gl/wpc2Q1 The differing sexual orientation of identical twins is an opportunity to investigate one of science’s most controversial questions, are people born gay? Two brothers are identical twins, they were raised together, and as they grew up they remained physically similar, but their tastes and interests began to diverge. One became interested in dance and academia, while the other preferred sports. The most surprising difference between the brothers is that one is gay. They were raised by the same parents in the same household, sharing the same environment at a crucial time in their personal development. In the general population the chance of someone being gay is less than 5%, unless you have a gay twin, here the chances are much higher. If you’re fraternal sharing half your genes, there’s nearly a 25% chance that you will also be gay. If you’re identical sharing all your genes, there’s roughly a 50% chance that you will also be gay. This suggests that there must be some genetic component to our sexuality. However, it can’t be all down to genes, otherwise all identicals would be either both be gay, or both straight. Some other factor must be at play. In their first few weeks all foetuses develop along similar lines, if nothing changed we would all be born female. Foetuses with the male Y chromosome will form testes at about week 6, then begin to produce the hormone testosterone, but at about the 8th week testosterone is released and may affect early brain development. This hormone masculinises the body, testosterone also masculinises the brain, including a part called the hypothalamus, part of the network which controls who we find sexually attractive. Some scientists believe that the more the hypothalamus is exposed to testosterone, the more it sets the stage for a sexual inclination towards women. Occasionally a male fetus may not produce sufficient testosterone or its brain does not absorb enough to shape it along heterosexual lines, if this theory is right , then it may be that the gay brother absorbed enough testosterone to masculinise his body, but not enough to fully differentiate his brain. As a result he was left with a desire for men. Although there are still many mysteries twins like these are playing a crucial role in informing scientists about how and when we all develop our sexuality Clip from the documentary “In the Womb: Identical Twins”. Watch it here - http://youtu.be/7-dVvo7zbAU After the success of In the Womb, which followed the development of a single foetus from conception to birth, comes In the Womb Multiples. This film series opens up the incredible foetal world of twins, triplets and quads in the womb. Using revolutionary 4D scans, we witness unique footage of multiple foetuses interacting with each other before birth. Multiples tells us not only about the extremes of human reproduction but the limits of human design.

I made this bow and arrow using only primitive tools and materials.The bow is 1.25 m (55 inches) long and shoots 60 cm (2 feet) long arrows. I don t know the draw weight - safe to say greater than 15 kg (35 pounds) perhaps? The stave was made from a tree ,Northern Olive (Chionanthus ramiflora), that was cut with a stone axe and split in half with a stone chisel. One half was used for the bow and was cut to a length of 1.25 m (50 inches). The limbs of the bow were carved with various stone blades so that the limbs tapered in width, and to a lesser extent depth, towards the tips. The middle of the bow was narrowed in width to form a handle about 12.5 cm (5 inches) long. The string was made from the inner bark of a fibrous tree. It was separated into thin strips and left to dry. Then it was twisted into cordage. Arrows were made of the same wood as the bow and were 60 cm (2 feet) long. A notch was carved into the back to accept the bow string. They were fletched with bush turkey feathers picked up from the ground (no turkeys were harmed in the making of this video). A feather was split in half and cut into 3 lengths then resin and bark fiber attached the fletching on to the arrows. The tip of the arrow was fire hardened and sharpened to a point. The fletching was trimmed using a hot coal. Each arrow took about an hour to make. A quiver was made of bark to hold the arrows. Importantly, the quiver was worn on the back in the historically accurate style of native American and African archers- not on the hip like medieval European archers (see back quiver: https://en.wikipedia.org/wiki/Quiver ). I cleared a shooting range with a semi rotten log as a target instead of a hay bale. At 10 meters the accuracy was better than 50 % for this narrow target and the arrows stuck into the wood enough so that they were difficult to pull out. The bow was durable, shooting about 200-300 times with the string breaking only 3 times. I made a back up string and repaired them by splicing the ends back together. In conclusion this was an easy bow to make. The short design makes it easy to find a straight piece of wood for the stave. A short string is also easy to make and short arrow shafts are easy to find. Short bows shoot fast and are easy to carry in thick forest. The dimensions of the bow were based on those given in the SAS Survival Handbook by john Lofty Wiseman. but instead of carving it from a stave from the start, I split the stave and then carved it. I think this requires less time, effort and skill. It also gives a flat bow design that s unlikely to break. It does require wood that doesn t twist much when split though. Wordpress: https://primitivetechnology.wordpress.com/ Patreon page: https://www.patreon.com/user?u=2945881&ty=h I have no face book page. Beware of fake pages.

Let PBS know what type of digital series you d like to see by taking this survey: https://www.surveymonkey.com/r/pbsds2016 How does Inflation solve the Big Bang’s problems? Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g Although much of the Big Bang Theory is widely accepted to be true, it only gets us part of the way there. Observable truths such as the CMB and the flatness of our universe reveal that there is no way the universe has been expanding at a constant rate since its beginning. It turns out Cosmic Inflation solves the Big Bang s major problems quite well. So well in fact, that we might not even need a Big Bang at all! FURTHER READING: Inflation (cosmology) http://bit.ly/1Meeff1 Cosmological constant http://bit.ly/25nlp7Z _____________________ COMMENTS: Frank Schneider https://www.youtube.com/watch?v=Aj6Kc... DBlanding23 https://www.youtube.com/watch?v=Aj6Kc... jodokastslo https://www.youtube.com/watch?v=Aj6Kc... Omicron Vega https://www.youtube.com/watch?v=Aj6Kc... ______________________ Written and hosted by Matt O’Dowd Made by Kornhaber Brown (www.kornhaberbrown.com)