Why is phone restricted?

Why is phone restricted? When you see “Restricted” appear on your caller ID, you are receiving a phone call from a restricted or blocked number. This is used when an individual does not want the person whom he or she is calling to be able to trace the call back to him or her. Should […]

How do neutron guns work?

How do neutron guns work? A modulated neutron initiator is a neutron source capable of producing a burst of neutrons on activation. It is a crucial part of some nuclear weapons, as its role is to “kick-start” the chain reaction at the optimal moment when the configuration is prompt critical. It is also known as […]

How do you calculate orbital radius?

How do you calculate orbital radius? Kepler’s Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (R3=T2−Mstar/Msun, the radius is in AU and the period is in earth years). What is the orbital radius of the moon? Radius of the moon: 1.7 […]

Who named the electron?

Who named the electron? G. Johnstone Stoney How did they discover the electron? In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas. What did E Goldstein discover? Eugen Goldstein […]

What causes a cell to become cancerous?

What causes a cell to become cancerous? Cancer cells have gene mutations that turn the cell from a normal cell into a cancer cell. These gene mutations may be inherited, develop over time as we get older and genes wear out, or develop if we are around something that damages our genes, like cigarette smoke, […]

Does HCN have a dipole moment?

Does HCN have a dipole moment? (d) HCN is a linear molecule; it does have a permanent dipole moment; it does contain N, however the nitrogen is not directly bonded to a hydrogen. Therefore dispersion forces and dipole-dipole forces act between pairs of HCN molecules. Is HCN a strong acid? Strong acids are 100% ionized […]

What constellation is the sun in on March 21?

What constellation is the sun in on March 21? “Why is the vernal equinox called the “First Point of Aries” when the Sun is actually in Pisces on this date?” The Sun used to be “in” the constellation Aries on the first day of spring, otherwise known as the vernal equinox. Has NASA changed the […]

What is meant by order of magnitude?

What is meant by order of magnitude? Orders of magnitude are used to make approximate comparisons. If numbers differ by one order of magnitude, x is about ten times different in quantity than y. If values differ by two orders of magnitude, they differ by a factor of about 100. How many seconds are present […]

What is the most important contribution in biology today?

What is the most important contribution in biology today? Some of the most important discoveries, which have occurred in the past 50 years, are bacterial insulin synthesis, gene therapy, stem cell technology, somatic cell nuclear transfer, transgenic organisms and organ transplant technology. Who is the greatest biologist in history? Top ten biological discoveries Charles Darwin […]

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