Save your life with a cell phone. Don't leave it in the car -- mobile phones are the latest essential rescue gear. Most digital cell phones automatically fix your location when you make a distress call (called E911 capability). But on a backcountry trip, ringing up a rescue isn't always automatic. Follow these tips to make sure your call gets answered.
Preparation
Activate your phone's automatic "location" settings, which enables the cell network to calculate your position for all phone calls, not just 911 calls. To turn this feature on, look for the "location" option under your phone's Tools or Settings menu.
Preserve battery life; Keep your phone turned off (especially when you lose reception; dead zones rapidly drain the battery), but power up for five minutes each day. When turned on, cell phones "check in" with nearby towers every few minutes, leaving an electronic trail of "pings" for rescuers to follow. Phones do this even if the signal is too weak to make or receive calls.
Make sure your emergency contact person knows your phone number and your carrier, which saves precious time if rescuers need to check you last recorded transmissions and pings.
Rescue
To make an emergency call, improve reception by heading to the highest ground available. hold the phone at arm's length (to keep your body from blocking any signals) and rotate around to find the strongest reception. Return to the same place to make follow-up calls. Your phone will remember where the nearest tower is and find it faster.
If your battery is low, send a text message to your emergency contact, which requires less power and can transmit over a weaker connection than a voice call. Conserve juice by keeping your phone off between calls. Note: You cannot text 911.
Know what method your carrier uses to fix location, GSM phones (AT&T, T-Mobile) use radio signals to triangulate your position; climb to high ground to reach more towers. CDMA phones (Verizon, Sprint-Nextel) use internal GPS receivers; find an unobstructed view of the sky and wait a few minutes for the phone to lock on to satellites. Smartphones (BlackBerry, iPhone) combine both methods for the most accurate position.
When you connect with help, stay calm and double-check all your location details -- such as elevation, UTM coordinates, and which side of a ridge you're on. Panicked hikers have delayed search efforts by accidentally giving rescuers the wrong information.
Icebergs in the Antarctic area sometimes have stripes, formed by layers of snow that react to different conditions.
Blue stripes are often created when a crevice in the ice sheet fills up with meltwater and freezes so quickly that no bub bles form.
When an iceberg falls into the sea, a layer of salty seawater can freeze to the underside. If this is rich in algae, it can form a
green stripe.
Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea.
... Is this amazing??
Antarctica Frozen Wave Pixs - Nature is amazing!
The water froze the instant the wave broke through the ice. That's what it is like in Antarctica where it is the coldest weather in decades. Water freezes the instant it comes in contact with the air. The temperature of the water is already some degrees below freezing.
Just look at how the wave froze in mid-air!!!
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