AM transmitter for antique radios and other project updates

If you restore antique AM radios, you may have noticed that there is little or no decent music available on AM broadcast. In this video, I how how to build a very simple AM transmitter that lets you play MP3 through an antique radio.

Matching transformer: http://www.digikey.com/product-search/en?keywords=MT4153-ND

Xtal oscillator: http://www.digikey.com/product-detail/en/cts-frequency-controls/MXO45-3C-1M0000/CTX775-ND/1801890

MP3 player: http://www.ebay.com/itm/New-Black-Mini-Remote-Control-USB-SD-FM-MP3-Audio-Player-Module-DC5V-12V-DIY-/162193192705

A refrigerator that works by stretching rubber bands

Handheld CNC router: https://shapertools.com/

Rubber band thermodynamics: https://en.wikipedia.org/wiki/Rubber_band#Thermodynamics
Rubber band bicycle wheel:  https://www.youtube.com/watch?v=dBXL93984cQ


Thermal camera in this video:  Opgal Therm-App 25Hz: http://www.therm-app.com/ Let me know if you're interested in seeing more detail about this device in a future video.

Support the creation of Applied Science videos: https://www.patreon.com/AppliedScience

Heat-sensitive 3D paper (swell paper)

This paper has an unusual coating that swells up when heat is applied. It's normally used by printing on it with a standard inkjet or laser printer, then exposing it to a very bright light.  The dark areas absorb more energy, and become raised.  I also experiment with the material in a laser cutter.

http://www.americanthermoform.com/  - Source of the paper used in this video
https://www.youtube.com/watch?v=0fIg4rI4cDw - Video about the U Michigan group

Handheld CNC router repairs old CNC machine

I show how to use a handheld CNC router, the Shaper Origin, to make aluminum parts for my CNC mill.

http://www.shapertools.com

Piezoelectric motor

Quick demonstration of a piezoelectric motor.
www.pcbmotor.com  (not sponsored or solicited --  just interesting tech)


https://www.patreon.com/AppliedScience