logo
episode-header-image
Feb 2014
3m 55s

Could I see a flashlight beam from Earth...

iHeartPodcasts
About this episode

If you shone a flashlight beam from Earth, would you be able to see it from the moon? It depends. Find out why -- and get a lesson in how light works -- in this episode of BrainStuff.

Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

See omnystudio.com/listener for privacy information.

Up next
Yesterday
How Did Jerry Lawson Change the Course of Video Gaming?
In the 1970s, Jerry Lawson was instrumental in creating the first cartridge-based video game console and the first digital joystick -- and he did it as one of the only Black engineers in Silicon Valley at that time. Learn about Lawson and the Fairchild Channel F in this episode o ... Show More
10m 19s
Aug 25
Why Is Glass Transparent?
Glass windows are as solid as the materials that surround them, yet they let light through. Learn the physics of why glass can be so transparent -- and why it took humans thousands of years to create totally clear glass -- in this episode of BrainStuff, based on this article: htt ... Show More
9m 1s
Aug 23
BrainStuff Classics: Should We Retest Licensed Drivers Periodically?
Although some driving skills can deteriorate with age, experienced drivers tend to be the safest drivers. To an extent. Learn when and how experts think drivers should be retested in this classic episode of BrainStuff, based on this article: https://auto.howstuffworks.com/car-dri ... Show More
7m 3s
Recommended Episodes
Nov 2018
Can We Travel Faster Than Light?
Why can't we travel faster than light? Can we ever reach the stars? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
34m 46s
Oct 2019
How many stars can you see in the night sky with the naked eye?
How many stars can we see in the sky? Thousands? Billions? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
27m 46s
Jun 2016
How the Kepler Telescope Works
The Kepler Telescope has detected hundreds of exoplanets in our galaxy. What's the story behind it and how does it work? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
39m 39s
Jul 2021
How many moons does the Earth have?
Daniel and guest host Kelly Weinersmith count the number of moons orbiting the Earth! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
54m 25s
Dec 2021
Will starlink spoil astronomy?
Daniel and Jorge talk about how megaconstellations of satellites might spoil our view of the Universe. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
45m 37s
Feb 2019
Is Anti-Gravity Technology Possible?
Is it possible to negate gravity without using energy? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
37m 35s
Jun 2019
How can we see Dark Matter?
We know it exists but what is it and how can we see it? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
44m 25s
Jan 2021
How do we know the mass of stars?
Daniel talks about how astronomers can measure or deduce the mass of a star, and why it controls its fate. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 
47m 16s
May 2024
What’s Up With These Crazy Northern Lights?
Solar winds at a million miles an hour and freaky magnetic turbulence are sparking some of the best light shows in centuries. 
8m 36s
Nov 2021
Pourquoi la terre brille moins qu'avant ?
Depuis quelques années, la Terre perd de sa luminosité. Je vais vous expliquer pourquoi la terre brille moins ? Voir Acast.com/privacy pour les informations sur la vie privée et l'opt-out. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations. 
1m 42s