Time travel stories are cool because both the past and future are somehow more interesting that the present and because everyone wants a redo. But so far it appears we’re doomed to live consumed by regret in the eternal, boring present....

Experiential artist Lucas Rizzotto was going through a tough breakup, so he did what anyone would do: he built a personal time machine. In a playful talk, he shares how his free-ranging experimentation led to various delightful,...

Squeaks is feeling nostalgic today, so he and Jessi are revisiting times in the past that he had tons of fun with all his friends at The Fort!

Squeaks and Jessi use their pretend time machine to go way back in time and meet a creature even older than dinosaurs, called Dimetrodon!



First Grade Next Generation Science
Standards
Crossc
utting...

While we like to imagine little green men, it's far more likely that life on other planets will be microbial. Planetary scientist Nathalie Cabrol takes us inside the search for microbes on Mars, a hunt which counterintuitively leads us...

Rituals for the dead span much of the natural world, seen in practices from humans and elephants to bees, dolphins and beyond. With charm and playful insight, animal behaviorist Kaeli Swift delves into the life (and death) habits of...

For ages I’ve been thinking about doing a video analyzing time travel in fiction and doing a comparison of different fictional time travels – some do use wormholes, some relativistic/faster than light travel with time dilation, some...

Enric Sala shares glorious images -- and surprising insights and data -- from some of the most pristine areas of the ocean. He shows how we can restore more of our oceans to this healthy, balanced state, and the powerful ecological and...

Climate change is real, case closed. But there's still a lot we don't understand about it, and the more we know the better chance we have to slow it down. One still-unknown factor: How might clouds play a part? There's a small hope that...

Vaccine-autism claims, "Frankenfood" bans, the herbal cure craze: All point to the public's growing fear (and, often, outright denial) of science and reason, says Michael Specter. He warns the trend spells disaster for human progress.

Squeaks built a pretend time machine, and he and Mister Brown use their imaginations to travel back in time to learn all about the very first living thing!



Second Grade Next Generation Science
Standards
Disciplin
ary...

We're always learning more about far away galaxies and exoplanets, but we still have some pretty big mysteries hanging out here in the solar system, like why Venus spins the way it does.

Theo has a day of naughtiness being unkind to people in real life and online, will he learn to be kind?

Traveling forward in time is not a problem. You're doing that now. Can we travel backward in time? There is a theoretically possible way to do it using wormholes.



One solution to general relativity...

Time travel is nothing special. You’re time traveling right now into the future. Relativity theory shows higher gravity and higher speed can slow time down enough to allow you to potentially travel far into the...

Is time travel possible? Of course it is…into the future. You and I are travelling in time right now. And travelling into the far future also is also a reality using Einstein’s principle of time...

Pupil outcome: I can effectively choose and use evidence to develop my comments in a discussion. Key learning points: - Discussions can be elevated with the inclusion of evidence. - Written responses, textual evidence can also be used in...

Dr. McWheelie discovers a time machine and travels to the 18th century! Join her to repair a steam car and learn about steam engines.

Dive into the story of how the iconic DeLorean inspired a novel and transformed into a reality, merging 80s nostalgia with a touch of magic.<br/>

Grandpus installs an unknown device at Fixie School. As a joke, Fire convinces Toola that it’s a time machine. Toola is very nervous about an upcoming exam at school and so her Fixie classmates offer to use the time machine to send her...

The grandfather paradox is considered the biggest, most popular objection to the logical possibility of backwards time travel. It characterizes a hypothetical situation in which a time traveller goes to their past and ends up causing an...

This film explores how the world's climate has changed over time and how human activities have accelerated this natural process.
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People and places -Environmental awareness and care - Environ
m

ental changes...

Backing up data in Linux and macOS follows the same best practices as Windows, with a few different tools.
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This clip is from the chapter "Maintaining and Optimizing Operating Systems" of the series "CompTIA A+ Certification...

In this video, we will discuss the concept of walk-forward validation.
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This clip is from the chapter "Time Series Basics" of the series "Data Science - Time Series Forecasting with Facebook Prophet in Python".In this section,...