#1387: Skinfriction

if it’s true that wiping one’s hands after washing provides the most effective approach to hygiene, then a lot of those air dryers could be improved upon. One obvious upgrade would be simply to introduce a barrier between the hands so they can’t be rubbed against each other when being dried.

Today’s invention is however an integral washing/drying machine made up of an airblade-like hand dryer suspended above a sink. This would have a single aperture big enough to accommodate the forearms, not just the hands.

People wanting to clean their hands thoroughly would insert them through the dryer’s aperture on the way to the sink below. The skin of the hands would be rubbed by the intense downwards airstream, forcing bacteria to the surface so that they could be washed off more effectively when they reached the sink. People could be encouraged to scrub one hand against the other within the airflow by having the fan activated by this specific movement. Waterflow from the taps could be arranged to occur only after a period of this dry scrubbing.

The hands could then be dried as they are withdrawn, in the usual way.

#1384: Flightframe

Helicopters obviously have limited load-lifting capability.

Today’s invention is a frame (red) to which individual helicopters can be bolted in order to allow truly massive weights to be transported easily, with the load shared between n rotary-wing aircraft.

Given that no pilot is keen to have their craft attached to others, the frame would also contain circuitry which allows n-1 uncrewed machines to be controlled in synchrony from a master helicopter.

#1382: Supermarine

Today’s invention is an alternative to the usual submarine’s conning tower -an underwater crow’s nest.

To reduce drag and provide a higher observation platform, a minisub is located on a pair of streamlined arms as shown. The minisub has an airlock connection to the rear of the hull so that crew can enter and leave freely when in transit.

The minisub could detach from the hull, using the arms, and rise close to or high above the surface.

It might even be possible to have this vehicle detach completely and act as a lifeboat in an emergency.

#1381: ShoalShaper

It seems that shoals of fish are subject to a tension between the tendencies to swim closely to avoid predators and to spread out to get enough oxygen.

(There are examples of eg dolphins blowing bubbles in order somehow to direct a shoal, so maybe the injection of some extra oxygen allows the fish to bunch up more, making them easier to eat).

Today’s invention is an air line from a fishing boat. When a shoal is detected on the sonar, this line would descend into the shoal, aerate it and allow the fish to form a tighter than usual ball…resulting in a higher than normal percentage caught in the vessel’s net.

#1380: Scalepaint

If you are into building scale model construction kits (and I used to be obsessed by the whole process), there is a problem with the paints you need to complete the job.

Essentially, a perfectly accurate duck egg blue or an olive drab coating, when applied to some model in 1/72nd scale, looks way too intense.

I’m not sure about the neurophysiology of why this is, but professional modellers know it’s true and dilute accordingly (otherwise that feldgrau Tiger tank looks black -even in 1/35th).

Today’s invention is model paints which are matched more correctly to the scale of model for which they are intended. Manufacturers could supply a separate range of paints for every scale, but more usefully a kit could be sold which would allow makers to dilute their own precisely (according to the measured perceptions of psychophysical test subjects as to which of a range of eg tanks looked the correct shade when set against images of the real thing).

#1371: SayScan

People who spend their working lives scrutinising images from baggage scanning machines, need all the help they can get (as well as a doubling of their pay rate).

It seems that if you are prompted by hearing words, you tend to be more effective at detecting related items.

Today’s invention is therefore an MP3 recording which randomly says words like “wires”,”blade”,”drugs” etc to a person engaged in this task, so that they will maintain vigilance and improve the chances of discovering illicit baggage contents.

#1369: Jettisonion

Military robots are a) very scary and b) absurdly complex.

Bomb disposal robots can however save lives but their cost and technical sophistication makes it increasingly unattractive to leave damaged machines in the hands of an enemy force.

Today’s invention is a bomb disposal robot containing a UAV that ejects itself and flies home if the armoured, but technically rudimentary, outer vehicle is disabled.

The UAV ‘brain’ contains all the costly, classified control technology etc and thus avoids this being destroyed or captured.

This approach limits the need to apply huge amounts of armour, since the sensor unit can continuously assess the likelihood of forthcoming terminal damage to the outer vehicle.

#1368: InGassing

Lots of high-value liquid products, like paint or wine, require their packaging to be effectively resealed in-between usages, to stop their volatile gaseous components from escaping.

Today’s invention is an alternative to the established technique of ensuring good seals and possibly reducing internal air pressure, so that a vapour-rich, stable atmosphere is maintained inside.

It consists of a small cannister, like a ‘soda bomb’, which contains extra, pressurised vapour of the type given off by the contained liquid.

A valve on this is briefly opened each time the container is sealed, so that less volatile material is lost from the liquid into the headspace above. Opening the can also results in an enhanced scent of the product being given off (which for wine is good thing).

#1364: Railbroad

Never mind Chinese superbuses, today’s invention is a way to make more effective use of the rail networks.

A double-width train (black outline) could be built to run astride two adjacent railtracks (most tracks are laid in pairs; an up line and a down line). This would necessitate that all oncoming traffic be halted for a while of course but would allow very heavy loads to be transported (and with the extra width, potentially also at higher speeds).

Intermediate sized trains (blue) straddling three rails might also be used, as well as a small central design (red) which could be passed over by a black design running on the two outermost rails only.

#1361: WarmWiper

There has been a fair amount of hype about touchscreen smudge attacks (ie potential attacks). I’m pretty sure this has been made up by a journalist but in any case the problem is easily fixed by routinely changing the spatial order of the symbols to be touched.

A more serious problem occurs with existing, fixed key pads in very high security applications.

If eg a bank employee is under surveillance, by criminals using a super-sensitive thermal camera, his or her entry sequence will leave traces on the pad, with the residual temperature pattern varying according to the order in which these have been pressed.

Today’s invention is to supply each such installed pad with an automatically-activated hot air gun which can instantly eliminate any such thermal distribution.