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Spacemen

Journeyman
1,672 观看 · 9 年前

Subscribe - http://goo.gl/wpc2Q1 The Real Star Trek discovers the challenges humankind will have to overcome to journey to distant stars. One day we may face no choice but to leave Earth, forced by an ice age, pollution or a meteorite to find a new home elsewhere in the galaxy. The difficulties are daunting, humans evolved to live on Earth, not in space. We meet the scientists who are making journeys to Mars and beyond possible. The first task is finding the right planet; humans need oxygen and water, so not any old planet will do. We meet David Miller, the MIT scientist who works on the Terrestrial Planet Finder project and thinks it will make the job of finding a new home a whole lot easier. The ‘TPF’ is a set of orbiting satellites which are able to spot Earth like planets and reveal whether they have a ‘human-friendly’ atmosphere. Once we’ve found a target there’s the small matter of getting there. Just travelling to Mars and back is likely to take years. Journeys to stars are likely to be decades if not centuries. We look at some of the concepts to come out of NASA’s propulsion labs, from solar sails to antimatter. But even the rocket scientists can’t make our ship break the speed of light; we have to accept that crews are going to have to be in this for the long haul. We meet scientists who are trying to ensure that they arrive at their destinations healthy and ready to start life on a new planet. At MIT we see centrifuges that mimic the effects of gravity, installed in a spaceship they might stop the crippling loss of muscle and bone mass that would threaten our astronauts. Dava Newman demonstrates her revolutionary design for a spacesuit on a climbing wall, made of flexible material it will work with the wearer unlike the bulky suits currently used. We also reveal the work being done to overcome the deadly effects of cosmic radiation that threatens to wreck our crew’s DNA. We also look at the work being done to keep our crew in sound mind. Sealed in a ship for years with only faint communications with Earth they may rely on the software being designed by David Dinges, which allows a computer to spot when humans are becoming stressed. Eventually though we may have to accept that more drastic changes are needed before we can leave for the stars. From hibernation pods, to methods to slow down aging, the world of science fiction may have to become fact before we can leave our solar system. And if we embrace genetic manipulation to redesign ourselves for space we may also have to change our ideas of what a human is.

Vlad the Impaler - the real DRACULA - IT S HISTORY

ridethroughhistory
3,399 观看 · 9 年前

Some of us know that Dracula actually existed, but hardly anyone knows his biography. Vlad Tepesz was the ruler of Wallachia and a fierce enemy of the Ottoman Empire. His nickname originated from his most favorite form of punishment - impaling his opponents, which to this day remains one of the most cruel and gory forms of death. » JOIN OUR COMMUNITY FOR MORE HISTORY KNOWLEDGE! Write us on Facebook: http://bit.ly/ITSHISTORYfb Follow us on Twitter: http://twitter.com/thehistoryshow Your photos on Instagram: https://instagram.com/itshistorychannel

Survival Skills Primitive: Technology Make A Comb Primitive

SurvivalSkills
1,652 观看 · 9 年前

This is our next video. We made a primitive comb. At first we used knives to cut the tree, take the bark for the lanyard, we took the sap as the adhesive. We use lanyards and resin to fix the comb. We used the primitive skill completely to perfect this comb. The comb is very useful for primitive women and long-haired men. Especially in this video we have taken my channel name instead of "primitive technology" so that some people say we coppy although people already know "primitive" is a commonly used term . We will continue to post next videos on primitive survival skills. I love you guys. Please subscribe to watch the latest videos Channel:

5 Strangest and Most Chilling Phone Calls Ever Made...

interestingsubjects
4,551 观看 · 9 年前

Some of the most chilling and also mysterious phone calls that have ever been made..... ____________________________________________________________________ The Top5s Magazine is now available! https://www.top5s.co.uk/magazine Don t forget to follow TOP5s on Social Media to keep up with upcoming videos, articles and new information! ►► https://www.instagram.com/thetop5sofficial/?hl=en ►► https://twitter.com/TheTop5s ►►https://www.facebook.com/TheOfficialTop5s/ Check out Top5s on Patreon! https://www.patreon.com/Top5ss Top5s Merch! https://www.top5s.co.uk/store/ Special Thank you to CO.AG for the music as usual! If you are looking for music for any video production, games, movies etc. He is the man to speak to so check out his channel or send him a personal message! https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA Thanks for watching! Top5s DISCLAIMER: All materials in these videos are used for entertainment purposes and fall within the guidelines of fair use. No copyright infringement is intended. If you are, or represent the copyright owner of materials used in this video, and have an issue with the use of said material, PLEASE email us before putting in a claim and we can resolve the issue immediately. We can be reach on this email: info@top5s.co.uk

Can You Trust Your Memories?

Welcome
1,189 观看 · 9 年前

Can You Trust Your Memories? – Second Thought SUBSCRIBE HERE: http://bit.ly/2nFsvTS This video is a collaboration with a channel called PolyMatter. They did the animation and wrote most of the script for this episode, so if you enjoyed it make sure to give them a visit here: https://www.youtube.com/channel/UCgNg3vwj3xt7QOrcIDaHdFg New video every Friday! Follow Second Thought on Social Media! Twitter: https://twitter.com/_SecondThought Facebook: https://www.facebook.com/secondthoughtchannel/ Reddit: https://www.reddit.com/r/SecondThought/ Support Second Thought on Patreon! https://www.patreon.com/secondthought Watch More Second Thought: Latest Uploads | Second Thought Popular Videos | Second Thought About Second Thought: Second Thought is a channel devoted to the things in life worth thinking about! Science, history, politics, religion...basically everything you re not supposed to talk about at the dinner table. Welcome! If you re tired of learning after watching all my videos, come unwind on my gaming channel: https://www.youtube.com/channel/UCMvcO_t4lfDr34Dmm3NA5nw Business Email: secondthoughtchannel@gmail.com