Twelve thefts of exotic fish and pond equipment have been reported over a three-week period across Hull, East Yorks.

Humberside Police Community Support Officer Sam Gregory said all the evidence suggests the culprits are using the Internet to seek out their targets.

A picture of a kohaku Koi carp in a pond Copyright www.jjphoto.dk

“Google shows what is in your garden and you can see people’s ponds“, Gregory explained.

“One of the properties targeted has an eight foot fence and is set back from the road. The pond is in the corner and can’t be seen. Unless you were standing right next to the wall, you wouldn’t be able to hear the running water.”

In association with one of the thefts, where four small koi carps and some expensive lilies were taken, a neighbour report seeing two young men with a bike with a box on it and a big black net.

“Criminals could use maps, phones and getaway cars but no one would argue that these technologies are responsible for the crime itself, that responsibility lies with the perpetrator”, a Google spokesperson said, adding that Google is just one of several providers of detailed satellite images.

North Carolina State University engineers have created a non-toxic ship hull coating that resists the build up of barnacles.

Barnacles that colonize the hull of a ship augment the vessel’s drag which in turn increases fuel consumption. After no more than six months in salt water, the fuel consumption of a ship has normally swelled substantially, forcing the ship owner to either spend more money on fuel or to remove the ship from the water and place it in a dry dock where it can be cleaned. Both alternatives are naturally costly, and for many years ship owners fought barnacles by regularly coating ship hulls with substances toxic to barnacles. Unsurprisingly, these substances turned out to be toxic to a wide range of other marine life as well, including fish, which caused most countries to ban their use.

Ships are not the only ones colonized by barnacles. In the wild, it is common to see barnacles attached to a wide range of marine species, such as whales and sea turtles. One type of animal is however usually free of barnacles: the sharks. Unlike the smooth-skinned whales, sharks tend to have rough and uneven skin, and this might prove to be the salutation for ships as well.

The new hull coating created by Dr. Kirill Efimenko, research assistant professor in the Department of Chemical and Biomolecular Engineering, and Dr. Jan Genzer, professor in the same department, contains nests of different-sized “wrinkles” which makes the surface rough and uneven, just like the skin of a shark.

The wrinkly material was tested in Wilmington, N.C and remained free of barnacles after 18 months of exposure to seawater. Flat coatings made of the same material were on the other hand colonized by barnacles within a month.

“The results are very promising,” says Efimenko. “We

are dealing with a very complex phenomenon. Living

organisms are very adaptable to the environment, so

we need to find their weakness. And this hierarchical

wrinkled topography seems to do the trick.”

Efimenko and Genzer created the wrinkles by stretching a rubber sheet, exposing it to ultra-violet ozone, and then relieving the tension, causing five generations of “wrinkles” to form concurrently. After that, the coating was covered in an ultra-thin layer of semifluorinated material.