World's Smallest

This tiny house is billed by designer Levi Kelly as the world's smallest – and since it measures just 19.46 sq ft, we're inclined to agree. Its interior is more capable than you might expect, thanks to an ingenious approach to space-saving design.

We’ve all accidentally tied knots that we can’t untangle – but we don’t expect to win any world records. Now scientists have done exactly that, accidentally tying the world’s smallest and tightest knot in a tiny structure made of just 54 atoms.

Australian scientists have created the world’s smallest moustache, tiny enough to be modeled by a single red blood cell. Measuring just 5 microns wide, the micro-mo was designed to raise awareness for men’s health.

Scientists have created the world’s smallest wine glass, narrower than a human hair. Made out of actual glass, the model is a test run of a new 3D-printing process that could help make nanoscale glass components for electronic and optical devices.

While bicycle repair stands certainly come in handy, they can be rather awkward to bring on road trips, or to set up in small apartments. The Hangar Connect offers a more compact alternative, as it simply gets clamped onto whatever's at hand.

Last year, scientists at the Technical University of Denmark (DTU) got in a festive mood and created "the world's thinnest Christmas tree." This time, they've produced what they claim is the world's smallest record, complete with a Christmas tune engraved into it.

The ongoing miniaturization of electronics calls for an ongoing reimagining of the devices that power them, and a new example from scientists at the Chemnitz University of Technology has taken this technology into tiny new territory.

By combining miniaturized electronics with some origami-inspired fabrication, scientists have developed what they say is the smallest microsupercapacitor in existence. It's smaller than a speck of a dust but boasts a similar voltage to a AAA battery.

A tiny new species of chameleon has been discovered, and it may be the smallest reptile in the world. Known as Brookesia nana, or the nano-chameleon, the petite species can perch on a fingertip and may have the smallest adult males of any vertebrate.

Photography social network Agora's latest contest tasked its community with taking portraits of small things, and the results run the gamut from a close up of a tiny damselfly to shots of humans eclipsed by the scale and majesty of Mother Nature.

Researchers at Leiden University in the Netherlands have created the world’s smallest boat. Measuring just 30 microns long, the tiny model was 3D printed as part of a project investigating how to make synthetic “microswimmers” in complex shapes.

Scientists have developed what they claim is the smallest particle sensor in the world, designed specifically to detect harmful pollutants and offer a highly localized picture of air quality by being integrated into wearables and mobile devices.