Here’s a MetaEfficient Keyring. It’s a collection of lightweight, mini-tools suitable for carrying on a keyring.
In this article I will describe how to build a high-fidelity, bass-intensive sound system for under $1000. The secret ingredient of the system is the use of tactile transducers. These transducers effectively eliminate the need for expensive woofers or subwoofers. It’s an efficient method of producing deep, high-fidelity bass for a fraction of the usual cost. Many… [Continue Reading]
This summer I’ve been working on food-related optimization projects, here are some updates: I now have subscriptions with two local farmers (through a CSA or Community Support Agriculture). One farmer provides me with raw milk, raw butter and eggs, the other farmer provides vegetables and fruit. They both happen to deliver to same street in my neighborhood,… [Continue Reading]
One of the simplest and most inexpensive ways to purify water is to bubble ozone through it. Ozone is a molecule made of three oxygen atoms ( O3). It disinfects water very effectively, through a process called oxidation. Ozone ruptures the cellular structure of organisms, killing them. It also oxides toxic organic chemicals, minerals and… [Continue Reading]