Tell us about yourself!
Apple released its own technology called Fusion Drive (2013) that require the use of a SSD or similar device (https://en.wikipedia.org/wiki/Fusion_Drive). Using a faster drive for caching purpose could theoretically improve read and write performance, using a USB thumb drive will not.
Portable Raspberry Pi Emulation Machine
How to Build an 8-Bit Computer
LCS-1M - A Full-Featured, Low-Cost Hobby Oscilloscope
Know Your IC: 555 Timers
The Prism: A Laser Synth-Guitar
Arbitrary waveform generator, for ~20$
ZAPpelin, or how to train your blimp with an Arduino and IR remote
ATtiny & IR remote control Wiebelbot
Arduino / Processing Audio Spectrum Analyzer
Low resolution display done right
Upgrade Your iPod Mini With Flash Memory - No More Hard Drive!
The secret server
How to make an Iris Diaphram watch
Convert a toy piano to work as a midi device and use it with Synthesia
Arduino Waveform Generator Shield
LED Cube 4x4x4