Innovation of the day: Rollerblades

Who: Louis Legrange (France)

Innovation: Inline skates aka roller blades

What does it do?

So there's some wheels arranged in a line on a boot. The wheels will help you get places faster. Or think of it as ice skating during warmer weather.

What problem does it solve?

Legrange designed his skates in 1849 for an opera where a character needed to look like they were skating on ice.

A success?

Rollerblades were one of those fads, cool for a while in the 90s, then not so cool two years later. In recent years, thanks to the popularity of roller derby, the rollerblade's more stable cousin, the roller skate (two wheels at the front, two wheels at the back) has seen a resurgence.

Do you have an innovation to share? Enter the Innovator Awards and you could be up in lights.

Idealog has been covering the most interesting people, businesses and issues from the fields of innovation, design, technology and urban development for over 12 years. And we're asking for your support so we can keep telling those stories, inspire more entrepreneurs to start their own businesses and keep pushing New Zealand forward. Give over $5 a month and you will not only be supporting New Zealand innovation, but you’ll also receive a print subscription and a copy of the new book by David Downs and Dr. Michelle Dickinson, No. 8 Recharged (while stocks last).