VeritasiumŘada 2017
An element of truth - videos about science, education, and anything else I find interesting.
Kde se dívat na Veritasium • Řada 2017
25 dílů
- The Real Moral Dilemma of Self-Driving CarsD2
The Real Moral Dilemma of Self-Driving CarsWe talk about all the potentially challenging situations autonomous cars could get into but not about how human drivers are not very good. Tens of thousands die on the roads every year in collisions, most of which could be prevented by autonomous vehicles. Sponsored by BMW I wanted to make a video about autonomous cars for some time but I hadn't had the opportunity. The self-driving technology is already at a state where it can save lives if only it were more widely implemented. - How To Update Your Beliefs Systematically - Bayes’ TheoremD7
How To Update Your Beliefs Systematically - Bayes’ TheoremI didn't say it explicitly in the video, but in my view the Bayesian trap is interpreting events that happen repeatedly as events that happen inevitably. They may be inevitable OR they may simply be the outcome of a series of steps, which likely depend on our behaviour. Yet our expectation of a certain outcome often leads us to behave just as we always have which only ensures that outcome. To escape the Bayesian trap, we must be willing to experiment. - Is America Actually Metric?
D12Is America Actually Metric?Original Title: The American Kilogram The US signed the metre convention and bases all customary units on SI standards. As an aside, the Utah constitution from 1895 required the metric system to be taught in schools. This requirement was repealed in 1987. ¯\_(ツ)_/¯ - Mars 2020: Nasa's Next Mission To Mars
D13Mars 2020: Nasa's Next Mission To MarsOriginal Title: The Next Mission to Mars: Mars 2020 In 2020, NASA will send a new rover to the Martian surface with one of its objectives to search for evidence of ancient life on the planet. I made this clip as a correspondent for Bill Nye Saves the World on Netflix. - World's Heaviest WeightD14
World's Heaviest WeightHow do you measure big forces accurately? By calibrating your force transducer on the world's biggest weight - 1,000,000 pounds of force. This machine ensures planes don't break apart, jets provide required thrust, and rockets make it to their destination. - NEW Gravitational Wave Discovery!
D15NEW Gravitational Wave Discovery!Scientists have JUST published this new observation. On January 4th, 2017 they detected the merger of two black holes 3 billion light-years away. This marks the furthest detection they've been able to make and increases confidence that these events will be seen with increasing frequency as the LIGO interferometers become more sensitive to low amplitude gravitational waves (as sources of noise are eliminated). - Sandwich Bag Fire Starter
D16Sandwich Bag Fire StarterThe intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun's rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fold. This increases the temperature of wood to its autoignition point starting the reaction with oxygen in the atmosphere. By protecting the hot embers and adding more energy and fuel, you can get these hot coals to start a roaring fire. - Neutron Star Merger Gravitational Waves and Gamma Rays
D22Neutron Star Merger Gravitational Waves and Gamma RaysOriginal Title: First Ever Light & Gravitational Wave Cosmic Event! The merging of two neutron stars was detected by gravitational waves and then by telescopes in all parts of the electromagnetic spectrum. This is a historic detection as it demonstrates: - the first gravitational waves detected from inspiraling neutron stars - the first joint observation by gravitational wave and electromagnetic wave astronomy - identification of a gamma ray burst in conjunction with merging neutron stars - how gravitational waves and gamma rays can be used together to locate their source All evidence so far indicates that the data support General Relativity.
