US company takes technology to new depths
A US company is taking armchair adventuring and learning to a new level by letting anyone on the internet take command of a remotely operated underwater vehicle.
The LiveDiver device from Reach-In is now installed at the Aquarium of Boise, Idaho. By logging into the aquarium's website, users can control a small mini-submarine in the shark and fish tank to get a diver's perspective of the marine life.
Visitors can even snap pictures of the finned critters - if Letterman the puffer fish will let them. But more on him later.
Reach-In's first public-access venture was iPet Companion, which let users play with cats in 13 animal shelters across the US by controlling robotic toys over the internet.
The iPet Companion helps increase cat adoptions and shelter donations, and provides an opportunity for disabled or sick people to interact with playful felines, said Reach-In owner Scott Harris.
Kittens are fun, but Harris wanted to find other ways people could use the real-time interactive technology.
Reach-In's web-controlled submarine is the first of its kind, he said.
"Many zoos and aquariums have submarines that are controlled locally, but controlling devices over the web is an entirely different ballgame," said Harris.
While the Aquarium of Boise thinks the public will get a kick out of the device, its primary target is students, said aquarium biologist Nate Hall.
"This is another hands-on, interactive-learning way to promote science education," said Hall.
"We can go into classrooms anywhere in Idaho or the country, and the students can do a live session with me as well as drive the submarine."
Students learn about aquatic animals as well as the science behind the technology: Just how, exactly, does someone sitting in a classroom control a submarine hundreds of kilometres away in a fish tank? Hall envisions the program connecting with students throughout the state - especially in rural areas - who can experience the aquarium without a costly field trip to the city.
When the submarine is not being used for educational purposes, the public can log on for two-minute sessions piloting the little vessel.
The submarine requires a tether, since it is difficult to transmit wireless image and video signals through water. As technology improves, untethered remote devices could roam the ocean or other remote places, said Mark Bolander, LiveDive commander-in-chief.
The aquarium's leopard, bonnethead and blacktip reef sharks pay the submarine no attention. Instead, the sub's nemesis is a 76-centimetre-long gap-toothed mappa puffer named Letterman, who has developed a penchant for biting the mini-sub's cable.
"We were doing so well. Four weeks of flawless operation," Bolander said. Then Letterman decided to start chomping the mini-sub's tether, interrupting its video feed several times.
Crews tried wrapping the cable in Kevlar and stainless steel mesh. The persistent puffer keeps prevailing.
"He has got a set of jaws," Bolander said while repairing Letterman's damage yet again.
The puffer is armed with four protruding teeth, which it uses to crush its prey - and cables.
The curious puffer not only likes tormenting the mini-sub, but also hamming it up before the camera.
"He is not bashful, he comes right up to the camera," Bolander said. "You can really get some good images of him."
