Retro

Relay computer two

Relay computer two

Jon writes – Why on earth build a relay computer when there are already computers over a hundred thousand times faster? Well, for two reasons: to prove that silicon is not magic and because I want to. The simple relay adder was built using free NOS relays sometime in 2005, but my goal was to […]

Huge lens: project or paperweight?

Huge lens: project or paperweight?

I like that MAKE contributor Steve Lodefink is suggesting you buy this “gargantuan lens” from American Science & Surplus (for $10.95) if for no other reason than it’s badasss and will look cool weighing down your desk. Or, you can kick it old school (optically-speaking) and build an opaque projector with it. What’s an opaque […]

Green steam

Green steam

Our pal I-Wei Huang, of Crabfu SteamWorks, sent us a link to this “green” steam engine, a super-efficient two- (or more) piston engine that is allegedly easy and economical to build. It has a very ingenious way of converting reciprocating movement into rotary movement, the action of which you can see in an animated GIF […]

Personal blimps

Thushan Amarasiriwardena sent MAKE this video that accompanied a piece he did in yesterday’s Boston Globe. In it, a dynamic duo from Amherst, MA talk about their efforts to build and perfect the personal blimp. Is this the next MAKE corporate vehicle? Personal blimp sails over fields of Amherst – Link