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.

Thanks to an intrepid group of urban explorers, some of the most magnificent hidden engineering triumphs that lie, hidden, beneath the streets of the worlds cities are being recorded and posted on underground (no pun intended) websites.<p /><p />Here are some of our favorite sewers and drains, from Paris tourist attraction sewers to Londons Escher-like, arched, Victorian Gothic drains, to still working ancient Roman systems and the infamous giant storm drains beneath Tokyo. Vote for your faves.

There is something inherently fascinating about survival kits. Here are some of our favorites, including those below ejector seats, some nicely designed kits from Japan and at Target, and those that we thought had interesting components. We will add to this list over time, send us suggestions of genuinely interesting or unusual, non-gimmick kits.

Machines designed to smash large tough items into small bits, including a machine that eats trees whole, and yes, a real bone crusher, that makes fertilizer from animal bones.

This is a list of the worlds most beautiful airport terminals, based upon architectural merit rather than crude size, high tech bravado or structural gymnastics. For that reason the beautifully simple Dalaman terminal in Turkey makes the list, for example, but the design compromised Heathrow Terminal Five, does not. Vote for your faves.

In this kind of space, no one can hear you scream. Anechoic chambers use spiked walls to eliminate echoes, the end result might literally sound dull but the visual effect can be stunning, such as at the enormous anechoic hangar. Vote for your faves.

Climbing walls are both functionally and aesthetically fascinating. They often have beautiful abstract shapes reminiscent of Kurt Schwitters Merzbau or are just plain intricate and impressive.<p /><p />Included in our collection here are interactive musical climbing walls, enormous artificial ice towers, surreal climbing forms and a huge climbing wall inside a disused Texan grain silo. Vote for your faves.

Want to see some more impressive glass stairs than those at the Apple Stores? Despite the fact that Apple actually has a patent on the glass stairs at some of its stores, their glass staircases are actually not all that innovative. The glass stair at the Carre D art in Nimes is more adventurous and was designed 20 years ago, and Ove Arup have engineered a purely glass stair with no steel fixings.

The interior and exterior of wind tunnels have unusual design requirements that often make them accidental architectural masterpieces.<p /><p />Wind tunnels range from the miniature wooden box that the Wright brothers used, to the gigantic full scale tunnel at NASA Ames in Silicon Valley which drains the power supply for the entire Bay Area, and tests actual planes and space craft. Air speeds within them can reach tens of times the speed of sound, requiring super heated air.<p /><p />All in all, they are definitely object to go ooh about.

Just when people are talking about banning the incandescent light bulb, designers are noticing how beautiful they are and making lamps which show of rather than hide bulbs. Here is an eclectic list of items in honor of the humble light bulb, including a couple of takes on other types of lamp, for good measure

And you thought the matrix was fiction? Robots designed to access hostile areas such as radioactive areas are also used beneath the streets to clean or repair sewers or to lay cables. They were among the first things on the scene after 911 or Katrina and have a particular rugged beauty. Vote for your faves.

When you see something familiar that looks unfamiliar it creates an impression. Armor is so iconic that everyone has an image of what it looks like, from Roman to Samurai. Here are some examples that are a little bit different. Vote for your faves.<p />

Vote for your favorite Lego stop motion animation or time lapse construction video. Included are a 5 week 250,000 piece project and some great video recreations including a bizarre recreation of Bohemian Rhapsody.

Balloons formed the origins of what became the USAF, have been used for stratospheric parachute jumps, bungee jumps and even to test nuclear bombs. Vote for your faves.

A bunch of swimming pools have been doing the rounds on blogs lately. Here is the Oobject alternative list of cool pools. Including pools over fake pools, pools hanging off the edge of buildings, 1000 year old pools and spectacular underground pools. Vote for your faves.

iCandy - the best Apple concept mockups. Despite the huge number of 3d rendered mockups of Apple products on the web, few even come close to genuine Apple design. The exceptions seem to be Isamu Sanada and Yann Le Coroller, who between them account for the majority of well executed 3rd party concepts. Here are our favorites, and why we chose them. Vote for yours.

Although folding bicycles have seen somewhat of a renaissance, there has not been as much innovation compared to mountain bikes, because the market is smaller. <p /><p />This is a shame since although there are some great products such as Bromptons or the Birdy, there is, in our opinion, no ideal foldup. <p /><p />An ideal foldup would be one that folds so small and is so light, that you could take it in a backpack, just in case, like carrying an umbrella in case it rains. <p /><p />A couple of the concept designs here come close - vote for your fave.

Tensegrity structures are visually stunning and their combination with computer enhanced structures is creating renewed interest for architectural applications.<p /><p />Buckminster Fuller coined the term tensegrity when he saw sculptures by Kenneth Snelson and realized that rigid component geodesics were a special case of perfectly balanced compression and tension. Tensegrity refers to structures where compression members (rods) are only connected to each other by tension members (cables). The end result is that the structures appear to float in air.<p /><p />Despite the fact that tensegrity structures are fantastically efficient, few have been built since they tend to have a single point of failure and need adjustment. Recently however, schemes which combine the intelligence of computing and tensegrity structures have lead to proposals of very large scale structures including sky scrapers.<p /><p />Here are our favorite tensegrity links from around the web. Vote for yours

This is the real business end of $100 oil. An object that allowed Howard Hughes to become the richest man in the world by inheriting the patent. <p /><p />They are the world&#x2019;s most highly engineered pieces of metal. Steel, tungsten carbide or increasingly Polycrystalline Diamond Compact (PDC) toothed drill bits that, in their tri-cone, rotating head form, look like the monster spice eating Sandworms from Dune. Vote for your faves.

Atomic clocks are accurate to within one second since the period in time when humans and apes diverged. <p /><p />These clocks are literally what makes modern civilization tick, but few people ever see one. Their accuracy is necessary to overcome potential errors caused by relativistic effects in GPS satellites, for example. <p /><p />Here is a gallery of some of the more interesting atomic clocks. Vote for your faves.

From 3 megawatt offshore monsters to zero energy windmill skyscrapers, kite flown turbines and giant seabed anchored super-turbines, held aloft by blimps. Here is our list of the most futuristic and quixotic designs for wind turbines. By far the most beautiful way to harness energy. <p />

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).

Considering that super thin, flexible, touch-screens and large capacity solid-state storage are just around the corner we expected to find many more examples of interesting concept designs for laptops. Here are the best that we found, however this is one case where we think the realized products will outstrip the concept designs.<p />

Although Apple has recently released a beautifully designed keyboard which hints at what an Apple mini laptop may look like, it is the combination of tactile feedback and screen based keyboards which promises to make significant developments in keyboards in the near future. Here is our list of our favorite keyboards, vote for your faves.