has the answers for ALL of your questions…
Ever wonder how do birds fly? What exactly is the funny bone? Why is candy bad for your teeth? Why is the sky blue? How does a fax machine work? Why the moon is sometimes out during the day? Well, you no longer need to ask Jeeves or text Cha Cha. We are excited to announce that Professor Noe Ital has joined our staff and he is available to answer ALL of your questions
What is a satellite?
A satellite is an object that travels through outer space and continually circles another, and much larger, object. The route that the satellite travels as it circles the larger object is called its orbit. For example, the moon is a satellite of the earth and orbits around it. Many planets have satellites, which are actually smaller planets and which orbit around the larger planets in a circle or an ellipse. Human beings have learned to construct satellites, which we call artificial satellites. These are objects that are shot into outer space with immense force and which orbit around the moon, the sun, or the earth. Their job is to carry out observations in outer space, to convey telephone conversations from one end of our planet to the other, and to do all sorts of other tasks.
What is “laughing gas”?
What we call “laughing gas” is nitrous oxide (N2O). When administered in small doses, laughing gas gives a feeling of mild intoxication and causes fits of hysterical laughter. It is used as an anesthetic and a pain killer. Dentists employ laughing gas because it makes it easier for them to fill cavities and carry out other forms of dental treatment, which people – especially children – generally do not like to go through. Laughing gas was discovered by an English scientist, Joseph Priestley, in the late 1700’s.
Why do people breathe heavily after running?
When we jog or run, we breathe more quickly than we do normally because our body requires a greater amount of oxygen in order to adjust its activities to the fast pace of our running.
When we stop running, our heart and lungs are still operating at a faster pace than normal, although the other parts of our body have already started to rest. That is why we then are more aware of our heavy breathing, to which we did not pay much attention when our entire body was moving quickly.
Try to imagine how we would feel if our breathing were quick all the time, as if we had just finished running. Thanks to Hashem’s mercy, the pace of our breathing becomes normal again after a few minutes have passed.
How does water extinguish fire?
Fire needs the oxygen in the air in order to continue to burn. That is the reason why, when you cover a burning candle with a glass or some other vessel, the candle will be extinguished very quickly – because the oxygen in the air will be used up in a matter of a few seconds, and without oxygen, the candle will be unable to burn.
When we pour water on a fire, the heat of the flames converts the water to steam (vapor). The hot steam, which has a greater volume than the water, is repelled from the object on which we poured the water, and drives the oxygen in the air from the burning object. Since the fire needs that oxygen in order to continue to burn, the fire is extinguished.
Question of the month:
This month’s question was submitted by Marilyn from Brooklyn, NY
How does a hot-air balloon rise in the air?
Hot-air balloons are able to rise into the air because they are filled with hot air, which is lighter than the cold air outside. When we warm the air inside the balloon, the balloon rises just like a ball filled with air will rise to the surface of the water in a swimming pool and will then float on the water’s surface.