What is another term for position of an object? orientation. noun. the position of an object, or the direction in which it is pointing. What is the symbol of second? s Why is it called a second? Historical origin Originally, the second was known as a “second minute”, meaning the second minute (i.e. small) division […]
Is Earth losing its atmosphere?
Is Earth losing its atmosphere? A pair of researchers from Toho University and NASA Nexus for Exoplanet System Science has found evidence, via simulation, that Earth will lose its oxygen-rich atmosphere in approximately 1 billion years. What would happen if we lost gravity? If the Earth’s gravity did just suddenly disappear we would no longer […]
How did Newton figure out gravity?
How did Newton figure out gravity? The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest. Did Newton really discover […]
Are astrology predictions true?
Are astrology predictions true? Is it possible that all astrology predictions come true? You might be wondering how all astrology predictions can be right. The answer is “no”. Astrologers are our fellow human beings and not Gods. Does horoscope match really matter? There is one thing that the study didn’t account for—how horoscopes might in […]
Did Einstein say we Cannot solve our problems with the same thinking we used to create them?
Does your weight change in an elevator?
Does your weight change in an elevator? When the elevator is moving, we will weigh our normal weight. Since we are already moving at the same speed as the elevator (up or down), nothing is affecting us to change our weight. However, when the elevator starts to go or stops, our body resists it. The […]
What is the most common way for a virus to kill a cell?
What is the most common way for a virus to kill a cell? Most viral infections eventually result in the death of the host cell. The causes of death include cell lysis, alterations to the cell’s surface membrane and various modes of programmed cell death. Some viruses cause no apparent changes to the infected cell. […]
How do you add two vectors using their components?
How do you add two vectors using their components? Again, the component method of addition can be summarized this way: Using trigonometry, find the x-component and the y-component for each vector. Add up both x-components, (one from each vector), to get the x-component of the total. Add up both y-components, (one from each vector), to […]
Is iron rusting in the presence of moist air a physical change?
Is iron rusting in the presence of moist air a physical change? Rust is a reddish-brown substance formed on iron when it has been exposed to fresh air and moisture for a long time. This process is a chemical change called rusting. What is the chemical reaction of rusting? Rusting is an oxidation reaction. The […]