logo
episode-header-image
Sep 2023
33m 14s

Where does all our energy come from?

American Public Media
About this episode
Everything in our world is powered by energy. We need it to drive our cars, bake cupcakes and even jump up and down on the bed! All of this energy comes from different sources, like gasoline and wind power. Even the food that powers our bodies is a source of energy. But almost all of the energy on Earth first came from the same place: the sun! In this episod ... Show More
Up next
Jul 28
How do walkie talkies work?
Walkie talkies are cool tech with a cool name. In today's episode we find out how can one little box let you talk to somebody miles away. Even though we have cell phones that can connect to places around the world, walkie talkies are still quite useful. You can also test your wal ... Show More
29m 49s
Jul 21
Hoax Hunters take on the Fresno Nightcrawler
Marc and Sanden are back as the Hoax Hunters! This time they look at the case of the Fresno Nightcrawler. In 2007 a man’s security camera recorded something strange outside his house. It looked like sweatpants out for a walk by themselves, with no humans around. Creepy? Kind of. ... Show More
29m 53s
Jul 14
Why are brains so squishy?
Our brains are amazing machines, but they are also very delicate. We have to wear helmets when we bike, skate, or do other activities where we might bang our skulls. Why is the brain so sensitive? Turns out, it’s a soft blob a lot like tofu, but that softness lets it do some pret ... Show More
34 m
Recommended Episodes
Apr 2016
E is for Energy
Episode 05: Energy is amazing – it powers everything and is around us all of the time! Most gadgets in your home use electricity as their source of energy. This includes your television, radio, fridge, kettle, cooker, washing machine and your games console! How does it work thoug ... Show More
5m 19s
Aug 2023
Things You Thought You Knew – What is Energy?
<p>How is energy different from matter? Neil deGrasse Tyson and comedian Chuck Nice break down what energy is and where it comes from, ancient theories about sight, and how wheels keep us moving. Explore physics, thermodynamics, and more!</p><p>NOTE: StarTalk+ Patrons can listen ... Show More
38m 13s
Mar 2023
Abundant energy
This week’s programme is a thought experiment: What would the world be like if energy became superabundant and very cheap?Energy is vital for every aspect of our society, and the energy cost of extraction, processing, manufacture and transport is priced into every product we buy. ... Show More
28 m
Jun 2022
Solar Energy
First up in our energy series: solar! How do we harness the energy from the sun to produce electricity? Why should we? What are the environmental impacts? Resources for this episode: National Renewable Energy Laboratory How Does Solar Work (energy.gov) End of Life Solar Panels: R ... Show More
1h 3m
Mar 2021
Everything Is Energy
The energy that we put out is more than just our actions and words, but also the intentions we carry in our minds. Want more Andy? Try Headspace today. Learn more about your ad choices. Visit podcastchoices.com/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoi ... Show More
6m 2s
Aug 2024
Work and Energy
In this episode, we cover the topic of work and energy. We’ll start off by talking about work, which includes the mathematical and conceptual definitions and the sign convention of work. We’ll also talk a little bit about mechanical advantage and also path dependency. Moving on t ... Show More
33m 13s
May 2022
How can sunlight turn into electricity?
<p><strong>#021 Rebroadcast</strong></p> <p>This week, Melissa and Jam explore the chemistry of solar energy. How do we capture energy from the sun and turn it into electricity? Is it as super insanely cool as it seems? Are we living in the future already?</p> <p><a href="https:/ ... Show More
31m 18s
Nov 2022
Holding on to power
A mountain, a tower, a thermos full of molten salt: These are the batteries that could power our renewable future. For more, go to http://vox.com/unexplainable It’s a great place to view show transcripts and read more about the topics on our show. Also, email us! unexplainable@vo ... Show More
30m 34s
Apr 2022
Workout: Manage Your Energy
Whether it be in our relationships with ourselves, with others, or with our goals and passions — there is one key element that we must have to achieve what we want; energy. In this episode, discover the importance of energy and how to manage it so that every day is filled with vi ... Show More
7m 31s