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  • 04:49 Why Haven’t Hydrogen Vehicles Taken Over the World Yet?

    Why Haven’t Hydrogen Vehicles Taken Over the World Yet?

    168 views / 0 likes - added

    Hydrogen fuel cells are promoted as efficient and carbon free, but what happened to hydrogen cars? Why a Half Degree Rise in Global Temperature Would Be Catastrophic - https://youtu.be/teZk3NLU_7M Read More: Gas guzzlers reborn: Why your next car could ru

  • 15:33 Designing a 7-segment hex decoder

    Designing a 7-segment hex decoder

    305 views / 0 likes - added

    Building a combinational logic circuit to decode 8 bits and display a 3-digit decimal number on 7-segment displays is complex. In this video, I build something much simpler—a circuit that decodes 4 bits to a one-digit hexadecimal display—and even that's p

  • 04:49 This Fluoride Battery Could Mean Phone Batteries That Last a Week

    This Fluoride Battery Could Mean Phone Batteries That Last a Week

    197 views / 0 likes - added

    Scientists have been working on this alternative battery design since the 1970s, and now they’ve made a breakthrough. Is this the end of the lithium-ion battery? Batteries! - https://www.youtube.com/watch?v=YAg_8iCLIIw&list=PL6uC-XGZC7X5nglarE119ScPQ_MEyJ

  • 03:48 How Voltage Fade Prevents Us From Creating the Perfect Battery

    How Voltage Fade Prevents Us From Creating the Perfect Battery

    194 views / 0 likes - added

    Scientist may have just figured out how to reverse the voltage fade in lithium-ion batteries, here’s how How Supercapacitors Could Make Batteries a Thing of the Past - https://youtu.be/GeSvErqdmIM Read More: What’s Causing the Voltage Fade in Lithium-rich

  • 02:27 Could Kangaroo Farts Curb Global Warming?

    Could Kangaroo Farts Curb Global Warming?

    31 views / 0 likes - added

    Cows burps release a ton of methane into the atmosphere. Can other animals, like kangaroos, teach us how to make cow gas more eco-friendly?Subscribe! http://bit.ly/1FkxVLb Twitter! https://twitter.com/gross_science Tumblr! http://grossscience.tumblr.com/W

  • 10:27 Why It's So Hard To Make Better Batteries: Crash Course Engineering #32

    Why It's So Hard To Make Better Batteries: Crash Course Engineering #32

    81 views / 0 likes - added

    There are batteries powering so many parts of our everyday lives, so today were going to talk about how they work and how we can make them better. Well explain how they provide power by discharging ions between a cathode and an anode, and how reversing th


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