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?

Get into a car anywhere in the world and you are pretty much guaranteed that you will understand how to drive it. Cars have the ultimate user interface and Formula 1 cars perhaps represent the pinnacle of this UI, with the most demanding requirements.As recently as 1992, F1 steering wheels were round with 3 buttons (neutral, drinking water supply, radio), but since the advent of paddle gear changes there has been a sudden explosion of electronics and feature driven complexity.The complexity is ubiquitous, all 11 Formula 1 teams produce cars with more or less the same multi button design allowing adjustment and tweaks of traction and aerodynamics from the wheel itself. Unlike a road car, space and focus constraints mean that the entire dashboard is on the steering wheel. This is something that will no doubt be copied, unnecessarily, in consumer cars in future, but would that be a UI improvement?Given that all 11 F1 teams have converged on a remarkably similar UI, independently, you would think that dashboard steering wheel style was a rational design, however its complexity possibly caused Lewis Hamilton the 2007 F1 championship, when he accidentally pressed the neutral button (top left of the 2007 McLaren Mercedes wheel).We have gathered together as many of the modern style wheel designs that we could find and put a date to, to demonstrate the UI pattern. What is clear is that there is no clear accentuation of features (color, size) by how often the are used, merely by position. Even if drivers like Hamilton are experts and fully familiar with the UI, there is a tiny percentage chance of error. Our guess is that this trend in car UI would be a mistake if it filters through to everyday cars, and that F1 cars will revert to a more simple UI over time.

Jet engines undergo a variety of tests shown here, from chucking water, sand and flocks of dead birds into their gaping intakes. They are also tested to see what happens when a fan blade is destroyed while the turbine is spinning, with an explosive charge, not something to try at home. But the best tests of all are those involving jet engine afterburners and the best of the best has to be those with vector nozzles.These are real oobjects, objects that make you go ooh. Vote for your faves.

I've picked the most interesting selection I could find from the worlds largest gatherings. The largest anti war protest was in Rome in 2003, against the Iraq war, where more people gathered than for the annual pilgrimage to Mecca, the Haj. In fact, Sao Paulo's Gay Pride festival is roughly the same size as the Haj, with 2.5 million attending in 2006 and the Haj isn't even necessarily the largest gathering in Islam, with 14 million people attending the Shiite Arab'een in Iraq. Religious ceremonies dominate, with a Papal mass in Ireland in 1979 resulting in a third of the population (1.25M) gathering in a single field, but paling in comparison with religious gatherings in India, including the Kumbh Mela which drew an unbelievable 60-70 million people over 45 days in 2007, making it the largest gathering in history.

Nothing limits the design of interfaces like the QUERTY keyboard, however, that doesn't necessarily mean you can't try.Our personal favorite here is the Ergodex panel which can be configured to mimic the cockpit controls of many aircraft, including an F16.