S2017 E1 • The Absurdity of Detecting Gravitational Waves

A head-vaporizing laser with a perfect wavelength detecting sub-proton space-time ripples.

Première diffusion : 5 janvier 2017

S2017 E2 • The Real Moral Dilemma of Self-Driving Cars

We 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.

Première diffusion : 19 janvier 2017

S2017 E3 • Electromagnetic Levitation Quadcopter

Spinning magnets near copper sheets create levitation!

Première diffusion : 30 janvier 2017

S2017 E4 • Water on the Moon?

For a long time we thought the Moon was completely dry, but it turns out there are actually three sources of lunar water.

Première diffusion : 8 février 2017

S2017 E5 • The Science of Thinking

How the brain works, how we learn, and why we sometimes make stupid mistakes.

Première diffusion : 2 mars 2017

S2017 E6 • Does Water Swirl the Other Way in the Southern Hemisphere?

The definitive answer about the direction water swirls in two hemispheres

Première diffusion : 20 mars 2017

S2017 E7 • The Bayesian Trap

I 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.

Première diffusion : 5 avril 2017

S2017 E8 • 4 Revolutionary Riddles

Can you solve these four rotation-related riddles?

Première diffusion : 12 avril 2017

S2017 E9 • 4 Revolutionary Riddles Resolved!

The solution to 4 rotation-related riddles, including the mystery cylinder, bike pedal pulling puzzle, track problem, and train part going backwards. Thank you to everyone who responded, liked, shared, or made a video response.

Première diffusion : 18 avril 2017

S2017 E10 • The Sun Sneeze Gene

I have the photic sneeze reflex so I sneeze when I look at bright light.

Première diffusion : 27 avril 2017

S2017 E11 • Fire in ZERO-G!!

In a zero-g plane I experimented with flames and slinkies with surprising results.

Première diffusion : 3 mai 2017

S2017 E12 • 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)_/¯

Première diffusion : 10 mai 2017

S2017 E13 • 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.

Première diffusion : 18 mai 2017

S2017 E14 • World's Heaviest Weight

How 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.

Première diffusion : 24 mai 2017

S2017 E15 • NEW 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).

Première diffusion : 1 juin 2017

S2017 E16 • Sandwich Bag Fire Starter

The 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.

Première diffusion : 8 juin 2017

S2017 E17 • Seeing the Invisible

This is what the world would look like if you could see invisible air currents, temperature gradients, and differences in pressure or composition of the air.

Première diffusion : 15 juin 2017

S2017 E18 • Hydrodynamic Levitation!

On a stream of water you can levitate light balls of all sizes and even disks and cylinders. The mechanism is not the Bernoulli effect...

Première diffusion : 26 juin 2017

S2017 E19 • How We're Redefining the kg

In 2018 the kg will be defined by Planck's constant, not a hunk of metal.

Première diffusion : 12 juillet 2017

S2017 E20 • ECLIPSE 2017

The total solar eclipse from Madras, Oregon on August 21, 2017. As the moon passed in front of the sun turning day to night and revealing the sun's corona, apparently all I could think to say was 'Oh my goodness!'

Première diffusion : 21 août 2017

S2017 E21 • Schlieren Imaging in Color!

How Schlieren imaging works in color, black and white and slow-mo.

Première diffusion : 30 septembre 2017

S2017 E22 • 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.

Première diffusion : 16 octobre 2017

S2017 E23 • Your Amazing Molecular Machines

These are the molecular machines inside your body that make cell division possible.

Première diffusion : 20 novembre 2017

S2017 E24 • World's First Car!

I got to drive the world's first car (replica), patented by Benz in 1886

Première diffusion : 23 novembre 2017

S2017 E25 • This Particle Breaks Time Symmetry

Increasing entropy is NOT the only process that's asymmetric in time.

Première diffusion : 12 décembre 2017