In this video Paul Andersen shows conceptual thinking in a mini-lesson on thinking in scale.


TERMS
Phenomena - observable events in the natural world (require exp
lanations)
Time - an irreversible s
eries of...

A puzzle involving colliding blocks where the number pi, vey unexpectedly, shows up.

A puzzle involving colliding blocks where the number pi, vey unexpectedly, shows up.

It's time to look at some of the most under-sung heroes of the film world, Grip and Electric. Doing everything from setting up dollies and tripods, to helping the cinematographer shape the light with flags and silks, the Grips are there...

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time,...

How to implement Hamming Codes with xors

Venice is sinking. To save it, Rachel Armstrong says we need to outgrow architecture made of inert materials and, well, make architecture that grows itself. She proposes a not-quite-alive material that does its own repairs and sequesters...

Today on SciShow news, dead person wisdom is helping enrich our understanding of the natural world - how did Vikings manage to be such awesome navigators? And is heart disease inherent in human beings? Scientists think mummies may have...

Keeping our data safe and secure is necessary in today's world, but a lot of the encryption we depend on has been in development for thousands of years!

Our universe is not a very diverse place when it comes to shapes. Large celestial bodies become spheres, galaxies become discs, and there is little room for variation. Why is this? Well it turns out physics has some pretty strict rules...

There's something amazing growing in the city of Detroit: healthy, accessible, delicious, fresh food. In a spirited talk, fearless farmer Devita Davison explains how features of Detroit's decay actually make it an ideal spot for urban...

So as you may have noticed from last episode, computers keep getting faster and faster, and by the start of the 1950s they had gotten so fast that it often took longer to manually load programs via punch cards than to actually run them!...

SciShow Space News shares the latest developments from around the universe, including NASA’s plan to build the world’s most powerful rocket, and the fate of Russian geckos sent to have sex in space.

It will probably be at least a year before we have a vaccine for COVID-19. But in March, the WHO launched a megatrial tolook at four treatment options for the virus.

Devastating vulnerabilities are hiding in the technology in programs, protocols, and hardware all around us. Most of the time, you can find ways to protect yourself.

After months of travel, you've arrived at Duonia, home to the famous temple that's the destination of your pilgrimage. The walk from the welcome center to the temple isn't a long one ... but there's a problem. Can you outsmart the city's...

More than 40 million people worldwide suffer from Alzheimer's disease, and that number is expected to increase drastically in the coming years. But no real progress has been made in the fight against the disease since its classification...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on orders of magnitude.

Scale models - a representation that has been reduced or enlarged to a specific
scale
Orders of magnitude - is an approximation...

The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you.

Robot design commonly mimics the abilities of their human creators, but some researchers have been inspired by a possibly unexpected creature: an ant.

Sunscreen comes in different levels of SPF, or sun protection factor, but what does that mean for your skin and the ultraviolet radiation hitting it? Olivia explains the science of SPF.

The housing market can be vexing: while some neighborhoods get ridiculously expensive and price out longtime residents, others have historic homes sitting vacant without demand. Equitable housing developer and TED Fellow Bree Jones...

In James Howard Kunstler's view, public spaces should be inspired centers of civic life and the physical manifestation of the common good. Instead, he argues, what we have in America is a nation of places not worth caring about.

When you think of antihistamines, you're probably only thinking about getting rid of a runny nose, but we're learning that antihistamines can be used for nausea, insomnia, and even depression!