This week we find out why EJ sings.

How AC/DC could save your life, and we defend weasels.

How to keep a secret, and how to say goodbye bye bye.

A 21st Century mom gets a visit from the 24th Century.

How to avoid a bad bee sting, get back at bad Facebook posters, and look cool when you’re carrying a Trapper Keeper. 

Note: A version of this episode originally ran in April 2014

How to shake hands like a politician, free up space on your iPhone, and talk about golf.

The fun way to monitor air pollution and deal with an annoying co-worker.

How to defeat the Nazis and wind the Great Clock.

We talk to astronauts on the International Space Station, and help name a burrito restaurant here on earth.