To make sure that all phones are off, use a jammer

marzo 16, 2010 Technology No Commenti


The room of a cinema, a conference hall or a meeting, a church or a concert: these are all places or situations in which one may be requested to turn his mobile phone off, for different possible reasons which may range from the simple rule of keeping the place silent during a movie or a musical performance out of other people’s respect, to the need to avoid that any sensitive data or conversations may be leaked or transmitted outside.

Of course though, it may happen that someone accidentally keeps his cellphone on and it rings exactly when it shouldn’t, or that others do not turn it off on purpose, to allow a third party listener to remotely grab secrets in real time.

To avoid such kind of trouble, it may be useful to use a jammer, that is, a mobile phone breaker which prevents cellphones from working, making it impossible to communicate with the outside world, thus saving others from having to hear that annoying ring in the middle of an important scene, or preventing prying ears from listening to confidential conversations.

This is possible thanks to a jammer which would flood the area to protect with invisible signals (absolutely harmless for human health), preventing radio waves, which carry mobile phone signals, from reaching the area by making them illegible; so if someone keeps his phone on, he would have no signal and would not be able to place or receive calls, with no trouble for others and no unauthorized listeners.

The different types of jammers available on the market can block not only cellphone transmission, but also WiFi networks and Bluetooth connections.

For more info on jammers, protection devices and a wide range of solutions for your security and privacy, you can visit the Endoacustica website.

How to blow up an underground bunker? Easy, with a robot!

marzo 16, 2010 Technology No Commenti


The US Department of Defense seems to be busy with planning weapons capable of penetrating the earth and blow themselves up near underground bunkers, in order to strike their enemies even when they hide in places deemed inaccessible.

In fact, on its official site, the DoD has launched a request for information, aimed at the supply of single use vehicles (that is, vehicles which blow themselves up along with their payload), with high mobility characteristics that make them similar to an UGV (Unmanned Ground Vehicle).

This underground robot, called RUM (Robotic Underground Munition) would be launched from an airplane with a parachute, and once it reaches the programmed coordinates, it would start softening the ground and then digging, thanks to a powerful auger or rig mounted on the vehicle, until it reaches the bunker wall.

Once the wall is reached, it would keep on perforating until it penetrates the inside of its target. Only at that point, the explosive contained inside would explode, destroying the vehicle along with the bunker and the people inside.
Aside from being useful to reach enemies hiding underground, this sort of kamikaze mole would be a great way to destroy ammunition or ordnance storage sites, effectively cutting enemy supplies to the war zones.

The required technology would include robot sensors, communication systems capable of staying connected even underground, and of course a drilling system which can dig holes not only through the most resistant rocks, but most of all through manmade constructions which should theoretically be attack proof.

If any of you fellow readers of this humble blog thinks that they have what it takes, all they have to do is contact the DoD website and send their details by April 9…

A robot fish, powered by a fuel cell

marzo 16, 2010 Biotechnology No Commenti

Readers of these pages may already have noticed that we mentioned robotic fish a few times, both small and medium sized, so this new item coming (of course) from Japan, and more specifically from Osaka City University, may not look exactly as something new.

In this case though, what makes this robot fish, with its 10 centimeters in size, different from others and standing out from the crowd, is the source of power it uses.

Generally in fact, this kind of miniature devices is powered with a rechargeable Li-ion battery, which can provide an operating time of a few hours. This new robot fish from the land of the Rising Sun, instead, is powered by a fuel cell, nicknamed “Power Tube”.

The energy consumption of the small magnetic engine powered by this fuel cell is approximately 100 times lower than those which use a normal lithium battery, and the final target of this research is creating robotic fish that can swim for up to three consecutive days, not only on the water surface, but that are also capable of diving and rising, thanks to a small joint placed on the front of the fish, which makes it easier to head downward or upward.

In a near future, such robotic fish might be used for a wide range of applications, for example starting with monitoring of the pollution level of waters by simply adding dedicated sensors, or checking the condition of water pipelines from the inside, or even, by simply some micro camera and a transmitter, for underwater surveillance in port areas that might be at risk of any kind of attacks.

At the current stage it is not more than a research program, but in the future a robot fish might help us in several fields and make our waters a safer and cleaner place.


marzo: 2010
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