A gallery of products using radioactive materials.Because radiation was seen to be new and powerful, at the beginning of the 20th century radioactive material was used in products such as face creams, mineral water and medicine, by equating power with rejuvenation. For similar reasons it was even used in items from spark plugs to condoms. Although many of these items are from an age when the dangers of radiation were not known, radiation is obviously useful as a healing tool for cancer therapy, but it is still used in legal Chinese remedies, which are respected more because of their age rather than efficacy and quack homeopathic medicines which are tolerated while unproven, because they are harmless water.Vote on your fave examples.

Fingerprint scanners are a dime a dozen these days. But how about devices which can literally grant access by the way you walk, the way you talk, the way you type or write, bite or grip. Here is a chart of state of the art biometric applications, including futuristic devices like portable Game Boys which are ominously called HIIDE (handheld interagency identity detection).

As flat screen TVs become ubiquitous, vintage TVs look more and more interesting and unusual. From early mechanical TVs consisting of a spinning disk and lens (which look even better without an enclosure), to Sony's original transistor TV and portable LCD sets from as early as the 80s. Here are some of our favorites from collector sites around the web.

Bicycles are very efficient machines, more efficient than legs! Here are some of the more bizarre bicycle powered objects from a washing machine, to a bulldozer, a centrifuge at NASA and even a rollercoaster.

The hovercraft will be 50 years old next year. Like supersonic, interplanetary and deep sea travel, the demise of the world's largest hovercraft the SR-N4, joined Concorde, the Saturn V and the Trieste as examples of technological retreat.The SR-N4, which was operated by two companies, for many years, to transport people across the English Channel, could carry over 30 vehicles and 250 people. What made these hovercraft particularly unusual is that they represented an example of a design where the civilian versions were more extraordinary than those used by the military, which are still smaller, even today.

Last night our very, very ,very bad cat had diarrhea, then stepped in it, walked all around the house and trampled all over the bed. Here is a list of the best gadgets to deal with cat and dog feces, including a $7000 device for cleaning out paddocks, which I think we might have to buy.

Britain is probably the only country in the world where electric vehicle use is declining, due to the rapid disappearance of the electric milk delivery vehicle, or milk float.Until recently it was common place for milk to be delivered to almost every house in the UK, daily. Presumably in order to secure the national flow of tea. To achieve this a vast army of distinctive, cheap looking, sluggish, electric utility vehicles paraded suburban streets.Here are some different varieties, including new concept vehicles and milk floats from movies, all preserved for posterity.

The original yellow submarine may have been aqualung inventor Jacques Cousteaus. Since The Beatles song, all manner of weird and wonderful, quixotic submarines have to be bright yellow, from home made subs, floating human powered septic tanks and deep sea exploration vehicles. Vote for your faves.

Since the Psion III showed the way forward for a super small keyboard device, somewhere between a cellphone and a Laptop. Its a type of device that offers something that the iPhone or Blackberry will neverThese days this form factor is dominated by devices used to play videos and some of the designs are very good.

A gallery of incredible streamline design. No other period in product design is more important to American history than the Streamlined period. Here are our favorite gadgets and vehicles from the Sky Captain World of Tomorrow.Ironically the streamlined shape is less aerodynamic than it looks. It came from the high speed steam trains designed by people like Raymond Loewy or cars by Norman Bel Geddes (the father of the actress who played Miss Ellie in Dallas) and still exists in kitchen and bar-ware and the 40s style Airstream trailers which escorted the Astronauts off the Space Shuttle today and still look futuristic.

Pininfarina made their name as stylists of classic Ferraris. They continued their distinctive design tradition through other exotic sports car brands to ordinary sedans and, since the 80's, household product deign. Some of the latter products are hit-or-miss, but at their best there is no other company quite like them.Andrea Pininfarina, the grandson of Battista ‘Pinin' Farina, the auto design company's founder, and the current CEO was killed today. Trajically and ironically he was hit by a car while driving a Vespa scooter.

There is a saturation point where individual pieces of graffiti become a texture, when things are absolutely covered in graffiti. This tends to happen in places that are charged with emotional energy, such as the Berlin wall, however here are some less well known places. From the throne of England which is covered top to bottom in hundreds of years old carved graffiti and equally aristocratic Harrow School which features a wood paneled classroom where every inch is covered by pupils who have carved their names, including Winston Churchill to pop culture shrines such as U2's former recording studio and Elvis' Graceland and not so pop Oscar Wilde, whose grave is covered in kisses.

All of these car commercials are from 1973, the last time the economy tanked because of oil. The embargo started late in 1973, at the point when family sedan's did less than 10mpg, were the size of a boat and often sloshed around on suspension that felt like you were at sea. While the Detroit manufacturers were pitching speed, horsepower or comfort, one relatively obscure Japanese import, was already selling based on fuel economy. Can you spot the odd one out?

Spot the man made fakery from the bizarre but real. For April Fools Day Oobject becomes Zoobject and is all about animals rather than machines, with a cunning cryptozoology quiz. Vote for your faves and click to see which are real or fake.

In the niche world of extreme car hi-fi, which seems to straddle both red neck and hip hop, various measures of audio insanity are used: how much the roof flexes or the windshield warps, to the point of shattering; or how much water can be thrown into the air from containers on the roof.My personal favorite, however, is the drive up Seven-11 remote window shake.

Some of the most beautiful mechanisms ever produced, here is a gallery of old and new mechanical movements of planets and their moons, the entire solar system and tides and eclipses. Orreries, Planetaria and Tellurions, respectively.

Unintentional comedy is one of the consequences of Moores Law (that computer power doubles every two years) and almost any claim made in a computer ad more than a decade old. Included here are claims that compared to the Macbook Air that I am writing this on, a computer with 2 million times less RAM will "satisfy your lust for power"; that a computer a thousand times slower will give you "answers fast" for demanding applications and that a computer with several thousand times the volume is "compact and mobile".

Considering what guns are actually designed to do, its pretty amazing how many other products and gadgets are designed to look like them. Here are a few of our faves. Vote for yours.

If there was one cassette deck to own, it was a Nakamichi. With the release of the model 1000 (its number reflected its high price) in the early 70s, reel-to-reel tape recorders were rendered all but obsolete, for consumers. With the release of the 700 Nakamichi created a functional and design classic.Because cassette tapes are in the gap between vintage retro and mere obsolescence, Nakamichis can be picked up for a reasonable price on Ebay.

There is nothing more creepy than the charred remains of a moth eaten victorian doll with rolling eyes and moving limbs. That is the premise for the Oobject's Halloween list, videos of the most creepy automata in action.

The two cardboard box halloween outfit is a halloween icon. Why they are always funny, we're not sure, perhaps its the irony of the fact that they are cheap and low tech and without any organic curves. Here are some instruction of how to make your own: 1. Take 2 boxes. 2. Wear them.We not quite sure what to vote on here. Most iconic?