Which UK National Park has the most visitors? South Downs National Park What is the newest national park in the UK? South east: New Forest | South Downs The New Forest National Park is celebrated for its ancient woodland and heathland, first given protection by William the Conqueror nearly 1,000 years ago. Which National Park […]
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What do all the physical properties of minerals result from?
What do all the physical properties of minerals result from? The physical properties of minerals are related to their chemical composition and bonding. Some characteristics, such as a mineral’s hardness, are more useful for mineral identification. Color is readily observable and certainly obvious, but it is usually less reliable than other physical properties. What are […]
What is the relationship between absorbance and concentration?
What is the relationship between absorbance and concentration? One factor that influences the absorbance of a sample is the concentration (c). The expectation would be that, as the concentration goes up, more radiation is absorbed and the absorbance goes up. Therefore, the absorbance is directly proportional to the concentration. How do you calculate absorbance from […]
What will be the magnetic field outside and inside a long current carrying solenoid?
What will be the magnetic field outside and inside a long current carrying solenoid? Outside the solenoid the magnetic field will be weak and the field lines will curl up to form closed loops. Hence, the magnetic field inside a solenoid carrying current will be the same at all the points. What is the value […]
What can exposure to high noise levels cause?
What can exposure to high noise levels cause? Exposure to high levels of noise can cause permanent hearing loss. Neither surgery nor a hearing aid can help correct this type of hearing loss. Short term exposure to loud noise can also cause a temporary change in hearing (your ears may feel stuffed up) or a […]
What does miasma mean in Greek?
What does miasma mean in Greek? In Greek mythology, a miasma is “a contagious power that has an independent life of its own. Until purged by the sacrificial death of the wrongdoer, society would be chronically infected by catastrophe.” An example is Atreus who invited his brother Thyestes to a delicious stew containing the bodies […]
When was heliocentric accepted?
When was heliocentric accepted? Jan What was Ptolemy theory? The Ptolemaic system was a geocentric system that postulated that the apparently irregular paths of the Sun, Moon, and planets were actually a combination of several regular circular motions seen in perspective from a stationary Earth. Who was the first White Pharaoh? Ptolemy I Soter, (born […]
Can electrons travel through air?
Can electrons travel through air? In order to create an electrical current, electrons must be ripped off of the air molecules so that they are free to move and form a current. Rather, air displays a complex relationship between the applied voltage and the resulting electrical current traveling through the air. Can current flow in […]
What proves light is a particle?
What proves light is a particle? Light behaves mainly like a wave but it can also be considered to consist of tiny packages of energy called photons. Then Max Planck and others were studying the photoelectric effect and they found that certain types of metal and other materials will eject electrons when light shines on […]