What is melting point of naphthalene? 80.26 °C What happens to naphthalene at its melting point? Freezing Point is the Melting Point This would be the melting point of naphthalene. After melting is complete, the temperature will begin to rise again until it reaches 218o C. It will stay at that point until boiling is complete. […]
What is the oldest light in the universe?
What is the oldest light in the universe? Bottom line: New observations of the oldest light in the universe indicate that the cosmos is 13.77 billion years old, and help resolve inconsistencies with other previous estimates. Who created the darkness? God What is the source of all light in the universe? Visible light (often referred […]
What is the biggest box of Crayola crayons you can get?
What is the biggest box of Crayola crayons you can get? Crayola manufactures 120 different Crayola Crayon colors, not including specialty colors. The 120 count box includes all the standard colors. The 120 count box can generally be found at WalMart and Target, or for your convenience, it may be available for purchase online at […]
Can I store a fire extinguisher horizontally?
Can I store a fire extinguisher horizontally? While modern extinguishers can be stored horizontally (the contents are under pressure and the angle of storage will not cause the system to leak), proper fire extinguisher storage includes using the appropriate mounting brackets to keep the extinguisher within easy access. Can you store a fire extinguisher in […]
When can a hypothesis be elevated to the status of a theory?
When can a hypothesis be elevated to the status of a theory? If a refined hypothesis survives all attacks on it and is the best existing explanation for a particular phenomenon, it is then elevated to the status of a theory. A theory is subject to modification and even rejection if there is overwhelming evidence […]
What are the factors responsible for evolution?
What are the factors responsible for evolution? The four factors of evolution are: mutation, gene flow, genetic drift, and natural selection. Genetic drift has much more effect in small populations, which may have an allele drift to fixation, in which all members have that allele. Why do individuals not evolve? Individual organisms do not evolve, […]
What is an example of a phasic receptor?
What is an example of a phasic receptor? Examples of such tonic receptors are pain receptors, joint capsule, and muscle spindle. A phasic receptor is a sensory receptor that adapts rapidly to a stimulus. An example of a phasic receptor is the Pacinian corpuscle. What is a rapidly adapting receptor? Rapidly adapting receptors (RARs) occur […]
Why does a piece of tile or stone feel colder than a piece of wood even though both are at same temperature?
Which metal is used in clinical thermometer?
Which metal is used in clinical thermometer? Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it’s used in a thermometer. What are five sites for measuring body temperature? The most common ones […]
Does rubber shrink when heated?
Does rubber shrink when heated? Polymers like rubber shrink on heating as their molecular chains curl up, and water shrinks when warmed from its freezing point to around 4°C. After that, though, it behaves normally, and expands on warming. In contrast, so-called negative thermal expansion (NTE) materials never behave themselves. Why does rubber shrink when […]