Did You Know…? …that a streak of lightning (a lightning channel) is only 1/2 to 1 inch thick when it short-circuits to the ground? …that the length of a cloud-to-ground lightning channel may be as much as 10 miles long? …that the Empire State building, a favorite attraction for lightning, is struck on average 8 … [Read more…]
Did You Know…? …that the surface temperature of the earth can range 250 degrees? …that the earth’s inner core temperature is over 7,000° F? …that at one level in the atmosphere it is a searing 3600° F. …that a volcano can erupt in places where none are expected or have ever been? …that much of … [Read more…]
Definitions Chemistry: The branch of science concerned with matter, its structures, properties and composition, the changes that matter undergoes. Almost everything in our world relates in some way to the science of chemistry. Everything that we see or touch is composed of elements, which are the basis of the science of chemistry. Chemical change: Any … [Read more…]
Do we ever stop to think about the wonderment of God’s creation and the complexity of the life God has given us—and offer heartfelt thanks to our Creator? We work and eat and sleep with scarcely a thought of the intricate processes that are happening every second in our bodies just to keep us alive! … [Read more…]
Did You Know…? …the heart beats 2 1/2 billion times during a person’s life? …arteries, vessels & capillaries would reach 100 thousand miles if stretched out end to end? …on average, the heart pumps 75 gallons of blood an hour for a lifetime of 70 plus years? …one person’s red blood cells, if stacked, would … [Read more…]
Did You Know…? our skin is the largest and most versatile organ of our body. the skin is an acute sensory organ, constantly reporting current external conditions to the brain, to which the body responds by making internal adjustments. our skin is a large elastic-like garment that stretches as we stretch and moves as we … [Read more…]
Did You Know That…? every second, the retina in our eye performs billions of computer-like calculations, as it measures distances, intensities, focal lengths, colors and hues, and tones of dark and light on all the objects we see. we are aware of our surroundings because our eyes pick up light rays, and the cones and … [Read more…]
Did You Know…? our brain analyzes the pattern of sound waves picked up by our ears, so that we can know whether we have heard a foghorn or a birdcall. our hearing equipment is so sensitive that our nerves respond to vibrations of the ear membrane no greater than 0.0000001 millimeter in width! we identify … [Read more…]
Did You Know That…? perching plants are designed to live without soil. orchids grow two kinds of roots—one which anchors the plant to its host, and another which is designed like a sponge and collects water from rain and the humid air of the rain forest. vanilla extract comes from the pods produced by the … [Read more…]
The Stenocara beetle harvests water from fog Imagine that you are in the desert. It hasn’t rained for hundreds of years and you are desperate for water. What do you do? The Stenocara beetle manages this situation all the time! The Namib desert in Africa is about the driest, hottest place on earth. So hot … [Read more…]