Computers & Mobile

The latest DIY ideas, techniques and tools for digital gadgetry, open code, smart hacks, and more. Processing power to the people!

Smartphone-controlled NXT robot

Boris Smus, a student at Carnegie Mellon, built this elegantly simple robot that uses a smartphone to interpret commands from Twitter. A few projects around the internet use an Android phone to control the Lego Mindstorms NXT brick. Most involve an ugly hack in which the phone communicates with a computer over WiFi, and the […]

Massive printable “Tree of Life” graphic for free download

Massive printable “Tree of Life” graphic for free download

This tree is from an analysis of small subunit rRNA sequences sampled
from about 3,000 species from throughout the Tree of Life. The species were chosen based on their availability, but we attempted to include most of the major groups, sampled
very roughly in proportion to the number of known species in each group (although many
groups remain over- or under-represented). The number of species represented is approximately the square-root of the number of species thought to exist on Earth
(i.e., three thousand out of an estimated nine million species), or about 0.18% of the 1.7 million species that have been formally described and named.