Tagged: engineering

Brave new world of nanotechnology

Manmade nanoparticles are being added to more and more foods, drugs, and other products and are ultimately finding their way into the environment. The name of these minuscule particles comes from the word “nanometer,”...

Enigma machine

Like all the best cryptography, the Enigma machine is simple to describe, but infuriating to break. Straddling the border between mechanical and electrical, Enigma looked from the outside like an oversize typewriter. Enter the...

Are GMOs good or bad?

In most cases, GMOs have been altered with DNA from another organism, be it a bacterium, plant, virus or animal; these organisms are sometimes referred to as “transgenic” organisms. A gene from a spider that...

How engines work

Did you know that your car will take in 566 cubic meter of air to burn 76 liters of fuel? That’s the equivalent of a 232 square meter house! If your only experience with a car engine’s...

NASA releases free software catalog

NASA has released its 2017-2018 software catalog, which offers an extensive portfolio of software products for a wide variety of technical applications, all free of charge to the public, without any royalty or copyright...

Introducing Handle

Handle is a research robot that stands 2 m tall, travels at 14 kmh and jumps 120 cm vertically. ​It uses electric power to operate both electric and hydraulic actuators, with a range of about 24...

Automatic vs manual transmission

Which is better: Manual or Automatic transmission? This debate has been present for the last seven decades. Manual and automatic transmissions are completely different technologies, which use different configurations and principles. One is based...

Aluminum can engineering

Bill Hammack details the engineering choices underlying the design of a beverage can. He explains why it is cylindrical, outlines the manufacturing steps needed to created the can, notes why the can narrows near...

Japanese wood joinery

Japanese wood joinery dates back to the seventh century and is a craftsmanship technique that involves complicated, interlocking wooden joints that form bonds without the use of nails, screws or adhesives. Even until recent...