French Start-Up Releases Bacteria-Powered Lights


In a world of increasingly scarce resources, viable power alternatives are at a premium. A Paris-based company called Glowee has seized this opportunity, creating a line of lights powered exclusively by bioluminescent bacteria.

“Our goal is to change the way we produce and use light,” Glowee founder Sandra Rey told New Scientist. “We want to offer a global solution that will reduce the 19 per cent of electricity consumption used to produce light.”

Glowee is not the first bioluminescent lamp producer on the market; Dino Pet is a dinosaur-shaped glass lamp filled with glowing dinoflagellates. But Dino Pet is a fun work of art, whereas Glowee inventors envision their product replacing traditional light bulbs in storefronts, parks, subways, and other public spaces.

Glowee’s “magic light,” as it’s called on the company website, is produced by the bacterium Aliivibrio fischeri. In the natural world, A. fischeri is best known for its relationship with the adorable, glowing bobtail squid.

Glowee scientists cultivate the bacteria in the lab in a nutrient-rich gel. The gel is then deposited in glass cases much like traditional lightbulbs, except these bulbs can be any shape at all.

Beautiful though it may be, the bacterium is not especially long-lived, which presents an obvious hurdle for the lamp maker. By manipulating the gel, Glowee team members have been able to increase the duration of the glow from a few seconds to three days. It’s a huge improvement, but Glowee’s got a long way to go to stack up against long-lasting electric bulbs.

They’re now experimenting with genetic engineering to breed hardier bacteria with a brighter glow. They’re also building in a molecular on/off switch, which could enable the bacteria to conserve energy during the day and glow only at night.

So is it practical to rely on live organisms to produce commercial levels of light? That remains to be seen. But it’s definitely cool.

All images courtesy of Glowee.

[h/t New Scientist]

The Secret World War II History Hidden in London's Fences

In South London, the remains of the UK’s World War II history are visible in an unlikely place—one that you might pass by regularly and never take a second look at. In a significant number of housing estates, the fences around the perimeter are actually upcycled medical stretchers from the war, as the design podcast 99% Invisible reports.

During the Blitz of 1940 and 1941, the UK’s Air Raid Precautions department worked to protect civilians from the bombings. The organization built 60,000 steel stretchers to carry injured people during attacks. The metal structures were designed to be easy to disinfect in case of a gas attack, but that design ended up making them perfect for reuse after the war.

Many London housing developments at the time had to remove their fences so that the metal could be used in the war effort, and once the war was over, they were looking to replace them. The London County Council came up with a solution that would benefit everyone: They repurposed the excess stretchers that the city no longer needed into residential railings.

You can tell a stretcher railing from a regular fence because of the curves in the poles at the top and bottom of the fence. They’re hand-holds, designed to make it easier to carry it.

Unfortunately, decades of being exposed to the elements have left some of these historic artifacts in poor shape, and some housing estates have removed them due to high levels of degradation. The Stretcher Railing Society is currently working to preserve these heritage pieces of London infrastructure.

As of right now, though, there are plenty of stretchers you can still find on the streets. If you're in the London area, this handy Google map shows where you can find the historic fencing.

[h/t 99% Invisible]

The Force Field Cloak
This Glowing Blanket Is Designed to Ease Kids' Fear of the Dark
The Force Field Cloak
The Force Field Cloak

Many kids have a security blanket they bring to bed with them every night, but sometimes, a regular blankie is no match for the monsters that invade their imaginations once the lights are off. Now there’s a glow-in-the-dark blanket designed to make children feel safer in bed, no night light required.

Dubbed the Force Field Cloak, the fleece blanket comes in several colorful, glowing patterns that remain invisible during the day. At night, you leave the blanket under a bright light for about 10 minutes, then the shining design will reveal itself in the dark. The glow lasts 8 to 10 hours, just long enough to get a child through the night.

Inventor Terry Sachetti was inspired to create the blanket by his own experiences struggling with scary nighttime thoughts as a kid. "I remember when I was young and afraid of the dark. I would lie in my bed at night, and my imagination would start getting the best of me," he writes on the product's Kickstarter page. "I would start thinking that someone or something was going to grab my foot that was hanging over the side of the bed. When that happened, I would put my foot back under my blanket where I knew I was safe. Nothing could get me under my blanket. No boogiemen, no aliens, no monsters under my bed, nothing. Sound familiar?"

The Force Field Cloak, which has already surpassed its funding goals on both Indiegogo and Kickstarter, takes the comfort of a blanket to the next level. The glowing, non-toxic ink decorating the material acts as a gentle night light that kids can wrap around their whole body. The result, the team claims, is a secure feeling that quiets those thoughts about bad guys hiding in the shadows.

To pre-order a Force Field Cloak, you can pledge $36 or more to the product’s Indiegogo campaign. It is expected to start shipping in January 2018.


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