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oobject: 'daily user-ranked gadget lists'
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.

mercury arc rectifiers

They don't make cheesy electronic board games like they used to. You might remember playing Clue with your friends in your adolescence, but these 12 retro electronic board games are under the radar and long forgotten. Whether it's racing against the clock to overcome the Omega Virus or shopping in the clearance section in Mall Madness, these games are sure to bring back some fond memories.

12 retro electronic board games

New York's retro futurism is particularly interesting becuase the city itself is an anachronistic view of modernism - an antique skyscraper city. Each one of these proposals is not just a past vision of the future, but a past vision of the future which is now in the past itself.The 15 items here, range from the purely conceptual work of Italian 60s architects, Superstudio, who designed a continuous monument around the earth, crashing through lower Manhattan to Lindenthal's serious proposal for an absolutely gargantuan bridge across the Hudson, with towers bigger than some of the tallest skyscrapers and where the keystone, still exists today.Along with Buckminster Fuller's well known idea for a geodesic dome over mid-town Manhattan, is his lesser known one for an array of huge, cooling tower like housing projects in Harlem, each holding 40,000 people. There are a couple of representative engineering projects showing plans to dam the Hudson or drain the East River and an array of transportation concepts, including Raymond Loewy's idea for a helicopter pad covering Bryant park, 10 storys above ground.Weirdest of all is the proposal for a spherical nuke proof 2nd city, below ground.

New York Retro Futurism

The original wireless network used pigeons. One of the worlds largest information firms, Reuters actually started out as a messaging service with carrier pigeons, they were used widely for messaging during the WW1 and even for aerial photography. The famous psychologist, Skinner worked on a guided missile which was to be controlled by live pigeons.

the pigeon net

This year the MIT class ring, the Brass Rat, hides a hackers' diagram of a subterranean campus wide tunnel network.Networks of secret passages and tunnels have been built on a giant scale, from components of the Maginot line to the Viet Cong Cu Chi Network. Others perform a peacetime function, such as the half mile tunnel network H.G. Dyar built under his Washington home, as a hobby, the passageways under Disney's Magic Kingdom or the unbelievable 5000 year old Lizard People tunnel network under Los Angeles that the L.A. Times published a diagram of during the depression.Here is a collection of our favorite tunnel network diagrams, drawings or models.

12 of the worlds most fascinating tunnel networks

The monorail perfectly exemplifies that nothing dates like the future, it is a piece of anachronistic technology that is today largely relegated to theme parks and inter terminal airport transit. Although the archetypal image of a monorail is the 1959 Disneyland version, as this list shows, its design history traces back to the middle of the 19th century, with steam driven versions that share none of the futuristic aesthetic of the streamlined post war versions. In this case, although the pioneering system from a technical point of view was the 1952 German Alweg, the 1911 Boyes monorail prototype shows the origins of the futuristic look.

9 Vintage Monorails

Giant centrifuges are used to test whether fighter pilots or astronauts can deal with extreme G forces, pilots having 3 chances to survive a 15 second 6G test to be able to qualify. Here are some videos of the results of the effects of these tests up to 10G and on a range of suspects from pilots to Iron Maiden's lead singer.

12 centrifuge gforce test videos

These days most cutaways are computer rendered. Here are some physical cutaways that fascinate us as much as when travel stores had elaborate cutaway models of passenger jets.The most amazing is a model of Chernobyl reactor core 4, accurately depicting its ruined state after the disaster.

13 physical cutaway models

Neutrinos are extremely small and fast, so much so that to detect them you have to build really amazing experiments, such as the ones shown here. Japans Super-K is a 50,000 ton tank of water, half a mile underground, so clear that divers get vertigo. The latest South Pole neutrino telescopes, which point into the earths core rather than at the sky, have arrays of detectors which are much larger than the Empire State building and are frozen deep in the Antarctic ice core.

Ghost Particle Detectors

When I was an architect, it was common for structural engineering books to have this image of two people effortlessly supporting a third to demonstrate the cantilever principal of the famous Forth Rail Bridge outside of Edinburgh. When I was looking for this picture, I noticed that the people were different. It turns out that this iconic image is not unique and here are the three variants I could find, making this the shortest (and one of the more obscure) oobject list to date.

3 forth bridge demos

At first sight these buses may look horrifying, like miniature cattle wagons full of children. But they are a feature of a type of culture that is different from America where yellow school buses shuttle children often over large distances. This culture, common throughout the world is one that has grown organically, where distances are short enough to be cycled (where litigation is minimal!) and where homebrew transportation is common.In some ways these buses are a marvel of practicality and an interesting Oobject.

12 tiny Indian school buses

In case there were any doubt about just how unpleasantly weird Kim Jong Il’s tyrannical grip over North Korea, here are 12 examples of his propaganda posters. They range from imagery of attacks on the US in a bizarre blend of Soviet art and 50s American comic books to perhaps the most macabre of all, pictures of copious abundance of produce in a place where people are starving to death.

12 North Korean Propaganda Posters

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.

12 bizarre pedal powered things

Burning man, which currently rages in the Nevada desert, is Mecca for art cars. America is the capital of modified cars, since rules about what you can do to your car and it still be street legal are less stringent than most other developed nations. Custom vehicles are a cultural expression of individuality.There are many categories of art cars, but our favorites are where a mundane, ordinary vehicle is completely covered in a single material or item. Here are some of our faves.

12 object covered cars

Switzerland may not have been the place where the symbolically mundane cuckoo clock was invented (it was actually Germany), but it was where Hofmann invented LSD. And although the CERN lab is mainly in Switzerland, where the plaque commemorating the web’s invention sits, the room where Tim Berners Lee wrote the proposal for the web is literally a few feet across the border into neighboring France. Here are some some labs where famous inventors worked.

inventors laboratories

Glove boxes are a staple of apocalyptic movies - chambers where scientists can manipulate dangerous substances through pockets with integral gloves.These are gadgets that everyone can recognize yet few can name. Here are our favorite picks, from radiation shielded plutonium glove boxes at Los Alamos to those aboard the Space Station, a version for welding exotic materials and a Class III device for handling biological or chemical Weapons of Mass Destruction.

12 real life glove boxes

Bang and Olufsen are famous for their superior design in electronics in the period prior to the 80s, yet there are no designers employed by the company. Instead, all design is traditionally outsourced and the Bang and Olufsen heyday, when their products were must have items for the homes of architects and designers is largely due to one man Jacob Jensen who designed a range of classic products between the late 60s and 80s.Like Apple today, Jensen obsessed with build quality and finish, and eschewed visible buttons wherever possible, using below glass illuminated controls and even proposing gesture based interfaces.Most satisfyingly, unlike current trends in design from double curved car shells to rounded corner boxes on web pages, Jensens trademark was ruthlessly squared off edges.

10 classic jacob jensen gadgets

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Category: 'aquatic'

Obvious the very word submarine implies something below sea level, so submarines on dry land are particularly weird. Here are some of our favorites, ranging from abandoned washed up submarines, like beached whales, to those which have been specially buried in the ground as museum exhibits.

Although there are many ironic underwater technologies that got there by accident, such as planes and trains or by design, underwater escape training helicopters, there are also mail boxes, telephone systems, cars, motorcycles, kayaks (yes underwater kayaks) and air conditioning units that are there just to mess with us. Here are the most surreal we could find, vote for your faves.

There is something intensely creepy about submarines, not least because, as we found out from the two that had crashed into each other recently, they carry a thousand times the explosive power of the Hiroshima bomb in a claustrophobic metal sarcophagus powered by the same stuff as the bombs. Because of this, and because of their featureless exteriors which hide immense complexity they provide the same kind of kick that a complicated gadget in a smooth case provides. Just like gadgets its interesting to see how they work when they are being assembled or taken apart. Here are our favorite views from the science fiction like decommissioning of Soviet attack subs to rotting reactor cores to components being wheeled through English roads.

Hyperbaric chambers are used either as compression/decompression chambers for divers or for medical treatment, to speed up the healing of wounds, amongst other things. They come in a variety of interesting forms, from hyperbaric lifeboats to miniature portable fold-up or telescopic versions for helicopter rescue of divers.

Heavy lift ships can carry loads of tens of thousands of tons, including oil platforms, other ships and even dry docks. The are often semi-submersible so that they can sink below the water line to let their cargo slide off. The sheer size of their cargo often looks impossible, as these items suggest.

This is a bit of an obscure list, we admit, however there is something very impressive about the sheer size of ships which can only be appreciated when they are out of water. The ships themselves are often in unusual objects which are equally impressive, such as dry docks or floating docks or ship carriers.

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.