An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature.

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

An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature. Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

BrainStuff

An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature.

What is an autograph worth?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/08232067-99e1-47a2-aa81-ae32009d5032/transcript

Mudlarking means sifting through riverbank muck in hopes of finding lost or discarded historical artefacts. Learn how it works, especially in the River Thames, in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/archaeology/mudlarking.htm

Mudlarking means sifting through riverbank muck in hopes of finding lost or discarded historical artefacts. Learn how it works, especially in the River Thames, in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/earth/archaeology/mudlarking.htm

How Can Mudlarking Turn Trash Into Treasure?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/17a0d839-3926-40af-8a13-b3b701724153/transcript

These arctic animals have complex social structures and may eat 6,000 clams in a single meal. Learn more walruses in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/walrus.htm/printable

These arctic animals have complex social structures and may eat 6,000 clams in a single meal. Learn more walruses in this episode of BrainStuff, based on this article: https://animals.howstuffworks.com/mammals/walrus.htm/printable

How Do Walruses Work?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/64fbb0f3-db1f-4363-abd6-b3b701721346/transcript

Your adaptive immune system remembers specific germs and fights them really effectively -- but it can sometimes make mistakes and attack your own healthy cells. Learn how the adaptive immune system works (and how it can go wrong) in this episode of BrainStuff.

Your adaptive immune system remembers specific germs and fights them really effectively -- but it can sometimes make mistakes and attack your own healthy cells. Learn how the adaptive immune system works (and how it can go wrong) in this episode of BrainStuff.

What Happens When Your Immune System Turns on You?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/4f5b5911-1c5d-4c61-a2d8-b3aa0141fe1c/transcript

What is an autograph worth?

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