Tech facts

Military sonar technology causes beachings

Submarines have been using low and mid-frequency active sonar technology, a deafening soundwave that is dangerous even 300 miles from it's source. Some mid-frequency sonar systems can put out over 235 decibals, which is about as loud as a rocket launch.
Animals for hundreds of miles literally jump out of the ocean to try to avoid the sound. The damaging effects vary, bet are akin to decompression sickness causing internal bleeding and bursting organs including lungs and eardrums. When beached dolphins are reported this sonar technology is rarely mentioned in the news, although the link has been demonstrated.

What can you do? learn more here

(update: court blocks sonar 7/6/06)

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Investing facts, tip about hot stocks

The price of hot stocks like IPOs and tech stocks can rise and fall suddenly.

"In these fast markets when many investors want to trade at the same time and prices change quickly, delays can develop across the board. Executions and confirmations slow down, while reports of prices lag behind actual prices. In these markets, investors can suffer unexpected losses very quickly."

"To avoid buying or selling a stock at a price higher or lower than you wanted, you need to place a limit order rather than a market order. A limit order is an order to buy or sell a security at a specific price. "

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What are the different types of laptop batteries?

There are currently three types of batteries commonly used to run people's laptops:
1) Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but are now out of date.
2) Nickel Metal Hydride (Ni-MH) batteries are a cadmium-free replacement for Nickel Cadmium.
3) Lithium Ion (Li-ion) is the battery you want for your laptop and is the current standard for portable power.

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