About Me

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I previously worked on Virtual Reality and other hardware at Valve.  I currently work at Google[x].

Prior to starting at Valve, I built computer peripherals such as keyboards, mice, and joysticks that were designed to be used inside MRI machines.  My company, Mag Design and Engineering, sold these devices directly to researchers at academic institutions who used them to publish scientific papers in peer-reviewed journals.

After work, I spend time on many different types of projects that usually involve circuit design, machining, material selection, and general fabrication/hacking.  My favorite place to be is my home workshop.

ben dot krasnow at gmail




Sunday, July 26, 2015

Control light with magnets and olive oil?! (Faraday effect)

See how olive oil and magnets can control the brightness of light via the Faraday effect.
Get your iron-on Applied Science logo here: https://www.patreon.com/AppliedScience

Measure Verdet constant of olive oil: http://www.sestindia.org/wp-content/uploads/2013/12/Volume-2Number-3PP-362-368.pdf

Plastic film polarizers: http://www.apioptics.com/linear-polarizers-spec.html

Faraday effect: https://en.wikipedia.org/wiki/Faraday_effect

Monday, July 20, 2015

Liquid Nitrogen Generator - Overview

This liquid nitrogen generator uses a Stirling-cycle cryocooler that was pulled from a cellular phone tower.  It was used to cool a superconducting RF filter that aids cell communications.  The cryocooler is able to pump enough heat away from its cold end that air will liquify and drip into a vacuum flask for storage.

Jeri's video at Maker Faire 2010: https://www.youtube.com/watch?v=14B8LynojI4

Monday, June 29, 2015

Tools and Tips #2 from Applied Science

Check out the iron-on Applied Science logos and support the channel: https://www.patreon.com/AppliedScience

High-res CD, DVD, Blu-ray image: http://benkrasnow.blogspot.com/
Twitter: https://twitter.com/BenKrasnow

Digital angle gauge: http://www.amazon.com/Wixey-WR300-Digital-Angle-Gauge/dp/B001PTGBRQ

Pipe thread sealants: http://www.mcmaster.com/#pipe-thread-sealants/=xu9uy5

NPT vs NPTF: http://www.cutting-tool-supply.com/TechTips/Tapping/NPTvsNPTF/NPTVsNPTF.htm

Surebonder hot glue gun: http://www.amazon.com/Surebonder-PRO2-100-100-Watt-Temperature-Industrial/dp/B006IY359K/
Black hot glue: www.amazon.com/190mm-Length-Soldering-Black-Sticks/dp/B00OKDWWFY/

Magnetic viewer film - http://www.amazon.com/CMS-Magnetics%C2%AE-Green-Magnetic-Viewing/dp/B000UV6ZPS/

Electrical outlet tester: www.amazon.com/Sperry-Instruments-GFI6302-Outlet-Tester/dp/B000RUL2UU/

Tube cutter shears: http://www.mcmaster.com/#3095a16/=xu9sg0

Switch contact burnisher: http://pinballmagic.com/index.php?main_page=product_info&products_id=86

Pin vise for drill chuck: http://www.mcmaster.com/#30505a5/=xu9rna

Gray lab coat: http://www.justlabcoats.com/ProductShopping.aspx?scode=RE-KT30CH

Support Applied Science on Patron, and receive your own iron-on logo

I'd like to thank my Pateron supporters by offering a reward for those who donate at the $3/video level or higher.  I'll send you an iron-on Applied Science logo that you can apply to your own lab coat or other clothing.


Sunday, June 14, 2015

Electron microscope slow-motion video of vinyl LP

I describe how I made a stop motion animation of a phonograph needle in an LP groove using an electron microscope.  I also show electron micrographs of other recording media.
Support Applied Science: https://www.patreon.com/AppliedScience