Slashdot Mirror
World's Oldest Wooden Water Wells Discovered
An anonymous reader writes "Researchers have discovered four wooden water wells in the Greater Leipzig region, Germany, which are believed to be the oldest known timber constructions in the world. A team of experts led by Willy Tegel and Dr. Dietrich Hakelberg from the Institute of Forest Growth of the University of Freiburg, Germany, uncovered the wells built during the early Neolithic period between the years 5206 and 5098 B.C." The (quite short) paper itself, and some cool pictures of the artifacts, are freely available.
[sarcasm]
They can't be that old.
The world only began in the 4000's BC.
Oh and "Frist pots;" if I made it.
Why don't you guys have friends or journals?
Jack and Jill went up the hill to fetch a pail of water.
Jack fell down and broke his crown, and Jill sucked his brains out.
Damn Neolithic Zombies...
TEMPEST Attacks! LCD Monitor leaks system noise to FRS
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I don't operate any wireless equipment at my living location. This includes computers, computer equipment, routers, non-computer equipment, etc.
I'm having a problem with one of my LCD monitors.
It works without problems. That was until I picked up some heavy static noises from a hand held radio. I eliminated all sources of generating this type of noise until I came towards an LCD monitor. When the monitor is on and there is content on the screen the radio makes several types of garbage(static) sounds. As I manipulate contents on the screen, maximize and minimize windows, open different applications, the radio responds with scratchy(static) noises to match the activity on the screen. This includes typing and mouse movement.
When I switched the desktop background to a solid black color without wallpaper, the radio noise went down to almost nothing. But when I loaded any program with a white background, the noise from the radio exploded in volume.
When I passed the radio across different computer and non-computer electronic devices other than the LCD monitor, the wired mouse made a high pitched squeal sound within the static. None of the other computing devices such as the tower generated any noise.
I tried CRT monitors and separate computers attached to the CRT monitors but they did not generate any noise in the radio. On the computer connected to the net, I unplugged the cable leading to the router to rule this out but it made no difference, the LCD monitor is at fault.
While monitoring the radio noise, there were several instances where the noise on the channel being monitored stopped, and I switched to another channel and the same noise appeared. Why would the noise from the LCD switch channels during normal use of the LCD? Back and forth throughout the day the noise generated by the LCD would switch from one channel to the next and back to the first channel again.
The noise extends several steps within my living location. I'll test this another day to determine if it extends outside my living location and if so by how many feet.
The computer/monitor are grounded and attached to a surge protector. I'm not sure what I need to do to stop this, or if I should ignore it.
I assumed LCDs would be quieter than CRTs when it came to noise.
Unless I have a radio tuned to a specific channel, the LCD does not generate any noise which I can detect, unless it's above my hearing capacity.
The LCD monitor also functions as speakers, and while the sound cable is connected to the tower, I have disabled the onboard sound in my BIOS. The only other connection is the DVI cable to the tower.
How may I decrease this noise or eliminate it? It seems like the LCD is a mini radio station. When I turn it off the noise in the radio stops, if I blacken the screen the noise lessens. When I switch to a colorful background or load white screened applications like a web browser the noise jumps up loudly. I've tried grabbing and moving a browser window around the screen and the movement matches the noises in the radio.
Would any of this be considered normal?
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This certainly isn't unheard of, it's because some part of the monitor is unshielded. The more fix-it stuff is at the top of the following, with the technical backdrop that just might be good to know is at the bottom.
Unfortunately, the issue is most likely the panel charging the LCs. The only thing you can do is see if the manufacturer will replace it or upgrade you. Complain to the manufacturer, be sure to come up with some important thing it's interfering with(if I recall some medical devices use some sort of radio).
If the issue is actually internal wiring which is highly unlikely as detailed below, and it isn't in warranty, attempt to shield it yourself. To shield it yourself, you'll need thin foil(not kitchen foil) and electrical tape.
So, in any given monitor, there's 3 main parts. Input, logic, and output. Output, as prev