Topic: how things work

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Rock-Paper-Scissors Lizards

Biologists from UC Santa Cruz are studying the three distinct mating strategies of what's being referred to as "rock-paper-scissors lizards," the blue, orange, and yellow variations of the Western side-blotched lizard...

How Far Can We Go? Limits of Humanity – Kurzgesagt

Is there a border we will never cross? Are there places we will never be able to reach, no matter how hard we try? It turns out there are. Even with science fiction technology, we are trapped in our pocket of the univ...

Stanford’s one-of-a-kind wind tunnel for birds & drones

An engineering team at Stanford University, lead by engineering professor David Lentink, built a one-of-a-kind wind tunnel in order to observe, measure, and record the minute details of how birds fly. Their goal: To m...

A bumblebee dislodges pollen in slow-mo

Sonication or buzz pollination is the bumblebee's secret weapon of resonant vibration. When bumblebees (and a few other bee species) grab onto a flower and vibrate it by flying in place, securely attached pollen is di...

Roboraptors and the Alarm Call Network

What's one way that you might study bird calls and communication, especially around alarm calls? Try revealing a predator in the forest... but not just any kind of predator. A robo-predator. ...the researchers em­...

How do eyes work & how do glasses help us see?

Glass, water, and the eye are three different transparent mediums that change the direction of light, a phenomenon called refraction. Refraction in the eye helps us see by bending light into an accurately focused poin...

Science Extras from Jiwi’s (Rube Goldberg) Machines

A YouTube series that hearkens back to characters and situations from old silent films, Jiwi's Machines mixes a love for Rube Goldberg Machines with an ode to comedy greats like Charlie Chaplin or Buster Keaton. T...

Understanding the Magnetic Sun – NASA Goddard

This dynamic computer model of our sun reveals the behavior of its invisible magnetic structure. The pink and green indicate open magnetic field lines that reach out into space, while the "closed" white lines loop bac...

Will YouTube Ever Run Out Of Video IDs?

Every YouTube video has a unique ID based on a counting system called Base 64. Randomly generated, that Base 64 ID allows YouTube to have a unique yet short url by using the alphabet in lowercase and uppercase plus tw...

The Science of Skin Color – TED Ed

When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it’ll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the...

Newton’s Three Laws of Motion

Follow four astronauts on a six month journey from Earth to Mars, and see how Newton’s Three Laws of Motion -- 'Newton' referring to English physicist and mathematician Sir Isaac Newton -- can help us understand and p...

Evidence of evolution that you can find on your body

Signs of our evolutionary history can be found in the form of vestigial structures on the human body. Watch this Vox video to help identify the evidence of evolution in yours. Some background via Wikipedia: Vestig...

Stanford’s µTug microrobots can pull a car

Watch six of Stanford's µTug (MicroTug) robots pulling an unmodified 3,900lb (1,800kg) car thanks to special directional adhesive "shoes" and "a very long, very slow, but very steady winching gate." The six microTugs ...

Monarch Butterflies Get Tiny Radio Trackers

How might we better understand the epic multi-generational migration of the monarch butterfly? National Geographic Emerging Explorer Martin Wikelski and monarch butterfly expert Chip Taylor are hoping to learn more ab...

Hummingbird hatchlings in their nest with mother Rosie

In mid-January of 2016, an Allen’s Hummingbird (Selasphorus sasin) named Rosie laid two eggs in a nest that was quietly being observed by webcam. On February 8th, two babies hatched from their eggs. This fascinating p...

How Does Oakland Turn Food Scraps to Soil?

Though you may not see a compost bin next to the trash and recycling bins where you live, in California's Bay Area, a green bin is the norm. From those green bins, food scraps, yard waste, and the like can be transfor...

JK Brickworks’ LEGO Orrery

Orreries, mechanical models of the solar system, are not about proper scale, but they are good for better understanding the basic positions and motions of the planets and moons in our solar system. LEGO artist Jas...

What happens when you put marshmallows in a vacuum?

Thanks to this hand pump vacuum sealer demo, we can see how these four fluffy marshmallows will react when the air is pumped out of their clear container. Poof, poof, poof! What's going on here? From Physics.org: ...

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