Eggshell Carvings

Bike-powered sewing machines, the secret iPhone tracker and eggshell carvings in this week's look at the web

Instructable user Bbstudio decided to discover the limitations of nature’s greatest design, the eggshell. After experimenting with how much shell could be carved away while still retaining the egg’s shape, the resulting visually stunning sculptures seem to defy gravity.

Ziiiro Watches

Bike-powered sewing machines, the secret iPhone tracker and eggshell carvings in this week's look at the web

With an inner swirl that tells the hour and an outer swirl to tell minutes, Ziiiro watches poetically tell time in either turquoise or fuschia.

Spiral Ballpoint Pen

Bike-powered sewing machines, the secret iPhone tracker and eggshell carvings in this week's look at the web

Designers Han Chi-hoon, Kim Yeon-soo, Park Byong-gon and Kim Sung-geun collaborated on a new ballpoint ink cartridge in a spiral form, an innovation that holds twice as much ink as a traditional pen.