As the average person’s stomach will hold less than two quarts, it only stays in this stage of the digestive process for three to five hours. The stomach slowly releases this semi-digested food to the intestines where it completes the digestive process. Roughly 15-17 hours after you take the first bite, the food is excreted [...]
You might think the animal with the longest gestation period would be one of the larger mammals, but in fact it is the Alpine black salamander. It is a viviparous amphibian which lives in the high altitude Swiss Alps. At altitudes above 4,600 feet, it’s gestation period can be up to 38 months. It bears [...]
In short, a liquid’s boiling temperature is dependent on its composition and the atmospheric pressure on the boundary between the liquid and the air above it. For water, the boiling point at sea level is 100 degrees Celsius (212 degrees Fahrenheit). The atmospheric pressure is roughly 29 mmHg at sea level, but this number is [...]
What does Doppler radar mean and how is it different from other radar? RADAR, an acronym for Radio Detection and Ranging, operates by transmitting a wave and recording the time it takes that wave to bounce off of an object and return to the source. Since we know the speed the transmitted wave is traveling, [...]
I saw a couple of good posts on this from astronomycafe.net on their ask the astronomer page. The general consensus of all the answers out there seems to be that we do not know exactly, but there are at least a hundred billion, and possibly several hundred billion. The following is quoted from Astronomy Cafe: [...]
Another interesting question to first consider is: is a zebra a light animal with dark stripes, or a dark animal with light stripes? It’s generally believed that a zebra is a dark animal with light stripes. Most scientists believe that the zebra evolved from a horse-like animal with no stripes. One theory of where the [...]
Actually, the intensity of the stars themselves doesn’t fluctuate, rather it is the light they emit that appears to brighten and dim as it passes through the air in our earthly environment. Were you to look at the stars from an airless environment, say the moon, you would see them as solid luminous points of [...]