melting, the best shape to make ice from water
is a sphere.
Does surface area
affect how architects design
Why are some pills crushed
before they are given to a patient?
Does a clove of garlic
have more flavor whole or chopped?
Why is a ring of ice used
in a punch bowl while cans of
soda are normally put in crushed
When people fall into cold
water, the risk of
lowered body temperature) is greater
than that of drowning. If you are alone and
wearing a life preserver, try the Heat
Escape Lessening Posture (HELP; see fig. 1)
Keep your arms close to the sides of your chest, cross
your legs and pull them up as far as you can.
If you are in the water with two
or more people, try the huddle
position shown in Figure 2. Stay close together
and keep still to
keep colder water out. The huddle can help small children