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 […]
What would happen if Earth had a tilt of only 5?
What would happen if Earth had a tilt of only 5? An axial tilt of only 5 degrees, however, would mean that seasonal variations would be minimal below about 80 degrees of latitude. Without these seasonal variations, the global climate would be much more uniform, but this would also cause devastation to most of the […]
What is air pressure and what causes it?
What is air pressure and what causes it? Air pressure is caused by the weight of the air molecules above. Even tiny air molecules have some weight, and the huge numbers of air molecules that make up the layers of our atmosphere collectively have a great deal of weight, which presses down on whatever is […]
Who said that a force is not needed to keep an object moving?
Who said that a force is not needed to keep an object moving? Newton What is natural state of an object? Objects do not change motion without unbalanced force. Objects in motion do not always require a force to keep them moving. Objects have two “natural” states of motion, at rest (static equilibrium) and moving […]
Which metal is used for cathodic protection?
Which metal is used for cathodic protection? The simplest method to apply cathodic protection is by connecting the metal to be protected with another more easily corroded metal to act as the anode. Zinc, aluminium and magnesium are the metals commonly used as anodes. What is the difference between sacrificial anode and impressed current? The […]
How do you calculate ploidy?
How do you calculate ploidy? Ploidy can be assessed either by chromosome number or by flow cytometry using the DNA index (DI), the ratio of fluorescence in leukemic blasts compared to normal cells. Normal diploid cells have 46 chromosomes and a DI of 1.0, hyperdiploid cells have higher values, and hypodiploid cells lower. What does […]
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 […]
How do you appreciate in one word?
How do you appreciate in one word? Sometimes short is sweet. Thanks. Thank you. I am indebted to you. Dinner was delicious. I appreciate you. You are an inspiration. I am grateful. You are a blessing. What is a good sentence for gratitude? We would like to express our deep gratitude for your generous support. […]
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. […]