Why are bones spongy? Spongy bone reduces the density of bone and allows the ends of long bones to compress as the result of stresses applied to the bone. Spongy bone is prominent in areas of bones that are not heavily stressed or where stresses arrive from many directions. Is spongy bone soft? Though spongy […]
Why Hall voltage is negative?
Why Hall voltage is negative? In metals, the Hall voltages are generally negative, indicating that the electric current is composed of moving negative charges, or electrons. What is the value of Hall coefficient? The average value of the Hall coefficient was measured to be 0.0113±0.0002m3C−1 and sign of the Hall coefficient was positive corresponding to […]
Can I check my iron levels at home?
Can I check my iron levels at home? The BIOSAFEAnemia Meter is the first FDA-approved, hand-held device that can be conveniently used at home to test hemoglobin levels (Figure 1). Low levels of hemoglobin may indicate anemia. Thus, the Anemia Meter may be used as an additional screening method. It is not recommended for use […]
What are the classes of dangerous goods?
What are the classes of dangerous goods? What are dangerous goods? Class 1: Explosives. Class 2: Gases. Class 3: Flammable liquids. Class 4: Flammable solids; substances liable to spontaneous combustion; substances which, on contact with water, emit flammable gases. Class 5: Oxidizing substances and organic peroxides. Class 6: Toxic and infectious substances. Class 7: Radioactive […]
How can extinction affect humans?
How can extinction affect humans? As species disappear, infectious diseases rise in humans and throughout the animal kingdom, so extinctions directly affect our health and chances for survival as a species. The rise in diseases and other pathogens seems to occur when so-called “buffer” species disappear. Is extinction good or bad? Nevertheless, extinctions can have […]
What does the radial velocity method measure?
What does the radial velocity method measure? The radial velocity technique is able to detect planets around low-mass stars, such as M-type (red dwarf) stars. This allows astronomers to determine the inclination of the planet’s orbit, which enables the measurement of the planet’s actual mass. Why is the radial velocity method biased towards high mass […]
What is killing the coral reefs?
What is killing the coral reefs? Despite their importance, warming waters, pollution, ocean acidification, overfishing, and physical destruction are killing coral reefs around the world. Genetics is also becoming a larger area of coral research, giving scientists hope they might one day restore reefs with more heat tolerant coral. How are humans killing coral reefs? […]
Where is a delta found?
Where is a delta found? Deltas are located at river mouths. They usually exist at the mouth of a river entering an ocean. However, deltas can also be found where rivers meet a lake. While less common, sometimes deltas occur inland. What is Delta short answer? A delta is a triangular piece of land which […]
What is the wavelength of 1 hertz?
What is a mass defect and why is it important?
What is a mass defect and why is it important? The nuclear mass defect is a fundamental property of a nucleus and is a fixed value corresponding to a certain amount of binding energy for that nucleus. Mass defect and binding energy are important factors in the energy involved in nuclear reactions. Is binding energy […]