Despite the uninteresting name, these rectifiers are one of the most beautiful gadgets ever made. As a result they are often seen if films and are quintessential elements of mad scientist labs, yet few people could name them or know what they were used for. Invented at the beginning of the 20th Century, Mercury Arc Rectifiers were like spectacularly large versions of the Tubes in pre-transistor era electronics. They were used to convert electricity from alternating to direct current.

The earliest remotes were neither wireless or used to control TVs. Since the 30s devices were available to control radios, Philcos 1939 wood and Bakelite model was actually wireless and predates any TV remote. TV remotes started with gadgets such as the Zenith Lazy Bones and it was Zenith who introduced the first cable free TV remote, with the Flash-matic.

This may seem like an overly esoteric oobject, but there is something interesting about the shape of a hairdryer - an item designed largely as a female beauty product that is often shaped like a gun or looks like sticking your head in a jet engine. One of these is actually shaped like a gun. The most interesting ones I could find were the machine age chrome ones or some of the more bizarre soft bonnet versions.

Most of these are either clearly dangerous, such as the shoe fitting x ray machines that were popular until the 50s or show a bizarre Alien-like (as in H.R. Geiger) aesthetic that is a world apart from current medical equipment. Bug-like metal castings in place of ubiquitous white plastic.

In some sense these are steampunk iPods, a ridiculously old fashioned and quixotic category of technology, because there is nothing portable about a record, particularly the brittle shellac versions of the gramophone era. Overcoming this lack of portability is precisely what makes these devices so beautiful and intricate, however, from the later versions which were installed in cars and music systems to the fantastic Peter Pan picnic player, where everything folds out including the platter and the telescopic trumpet. The Peter Pan style came from Europe, when they were called Kamerphones since they looked like the box cameras of the time. They were imported by the Jehovah's Witnesses to take on their rounds and play bible discourses outside people's doors.

Like fossils for creationists, these medical dinosaurs are concrete evidence of the tragic fallacy of anti-vaccinationism. During the 1940s and 50s entire hospital wards were filled with these terrifying looking submarine-like devices, to help polio victims whose paralysis rendered them unable to breath.Although modern day respirators tend to work with positive rather than negative pressure, polio itself has been almost entirely eradicated due to the successful widespread use of vaccines, saving countless lives.

Being slightly anally retentive about this list, I’ve limited it to pictures of the actual typewriters that were used by 9 famous writers, not just examples of the same model. Included are James Bond creator Ian Flemming’s gold plated portable that would have been worthy of Goldfinger himself, and the typewriter used by Apple Mac user, Douglas Adams, to write the Hitchhikers Guide, before there were such things as Apple Macs.

Heart rate monitors connected to an ink plotted graph are a staple of movies and TV and they usually come in beautiful portable versions by companies such as Lafayette Systems, making them a classic spy suitcase gadget.Polygraph lie detectors are widely believed to be useless quackery, no more effective than a Scientology Dianetics machine, but they are commonly used by law enforcement and government agencies, usually in the US and are an anachronistic cultural legacy of the cold war.Today, the classic analog polygraph is being replaced by much less interesting computer versions.

Aside from the fact that vintage massage devices look less like smooth sensual objects than giant, terrifying dental machinery they are possibly the worlds best source of laugh-out-loud, euphemistic advertising copy.Here are a range of our favorite Frankenstein devices with some classic product names, such as the Handy Hannah Vitalator; Niagara Cycloid-Action Cyclo-Massage; Stim-U-Lax Junior; Bonger Body Massager, Magic Fingers Motel Bed Massager or our personal favorite the Chic [sic] Glorifier.

These days, with chip based cellular devices and cameras, thing like spy radios and cameras are often toys, since the miniaturization of what used to be the realm of clandestine devices can now be made for a few bucks. As a result, modern spy radios are not that interesting, however these vintage versions from WWII right up to the Gulf War are.

Its strange to think that the now obsolete VCR or VTR has a half century history, from the giant Ampex and RCA machines used in TV stations to the multiple, competing format, consumer cassette players that culminated in the dominant VHS standard.Today you can by a DVD player for the same price as a DVD itself, due to the small number of moving parts and emerging market labor. However, VCRs were always relatively expensive because of their complex mechanisms, latterly involving gimballed rotating heads.In terms of design, aside from the robust utilitarian looking professional models, VCRs were ugly devices from the outside, but complex marvels inside.There are several great sites dealing with VTR history, including the excellent: http://www.totalrewind.org

The Zapruder film of the JFK assassination was shot on a Bell and Howell double 8 camera, at about the time of the introduction of Super 8, which created a ubiquitous format for affordable home movies. The difference in design between the Super 8 cameras and other 8mm cameras from as early as the 30s is clearly visible in this collection. The look changed from rounded shapes dictated by the film canister on early news reel devices, to a counter fashion for extremely orthogonal forms as exemplified here by the Star Trek like designs of the superb Bolex 150 from 1967.

Why would you buy a horrible plastic fan this summer, when Ebay is full of better alternatives at reasonable prices? Vintage fans are a perfect piece of machine age Americana with streamlined Moderne or Art Deco styling. Here are some of our favorite picks, available on Ebay at the time of writing.

Magic Lanterns are essentially pre-electric slide projectors. They hold a unique position in the history of gadgets, being popular at the end of the nineteenth century when cheap mass produced decoration became available. They represent one of the last machines to be designed like furniture rather than gadgets.The dirty little secret of design is that good taste equals expensive - when everybody could afford decoration, minimalist design with expensive materials became a way to display wealth (the early modernist, Barcelona pavilion had stainless steel columns, onyx walls and travertine floors) contrary to legend, modernism was originally product for the elite, not the masses.Magic Lanterns are pre-modernist, richly decorated items that are very different from the design of todays gadgets, which look like their design is dictated by function, but in reality (like an expensive Porsche designed to travel at speeds which it is illegal to do so) is dictated by a fetishized culture of the machine.

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.

Here is a roundup of collectible boomboxes, currently being auctioned on ebay. The mannerist nature of 80s ghetto blasters could not be more different from today's minimalist trends in consumer audio gear, lead by Sony and Apple. Because of this, these devices now look obviously obsolete and different and are starting to become collectors items. Ugly, but interesting, and representative of their time, some are perfect examples of pointless feature driven design, something which still plagues software.

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.

Before electricity, lighthouses relied on lamps that would almost be considered mood lighting by today's standards. Mechanisms were clockwork and had to be wound as often as every two hours. In the 19th century, Fresnel designed a lens that could focus this light into parallel rays and project it horizontally, dramatically improving lighthouses. By the end of the century, all lighthouses had Fresnel lenses classified into orders, with first order being the largest and most impressive.These days lighthouses use less elaborate lamps such as the beacons found at airfields, or even powerful, but unremarkable to look at, LEDs. Here is a list of some of the most beautiful and important lights ever made, including some 1st order beauties that stand 20 feet tall, and were floated on a mercury bed. There are no descriptions of each item, for this chart, as the images speak for themselves, however, the sites linked to have information about the lighthouses where they came from.