The Earth has a magnetic field and two magnetic poles. Polarity is used to describe the location of the magnetic north pole and where it is presently located geographically. Normal polarity is when the magnetic north pole is located at the geographic south pole.
The Earth's magnetic poles have reversed multiple times, and predicting a reversal is highly difficult, as the reversals have no specific length or time frame. These reversals can be seen by studying rock layers, particularly those found mid-ocean, which show minerals that display normal and reversed polarity, depending on which side of the ridge the samples are taken from.Learn More
The left-hand rule of magnetic polarity is a method of either determining the direction of charged particles after they enter a magnetic field or the way a simple motor works. The left-hand rule is also known as Fleming's left-hand rule, after John Fleming, the electronics innovator who created the rule.Full Answer >
The normal phase of phosphorus at room temperature is that of a solid. Phosphorus is a nonmetallic chemical that has an atomic number of 15 and the chemical symbol P on the periodic table. While its melting point is 317.3 degrees Kelvin, its boiling point is 553.7 degrees Kelvin.Full Answer >
The normal phase of neon is a gas. Neon is a rare element that constitutes about one part out of 65,000 parts of air. The main use of neon is as a constituent of neon advertisement signs.Full Answer >
At normal room temperature, about 70 degrees Fahrenheit, gold exists in a solid phase. It is classified as a metal and must be heated to extreme temperatures to transform into a gas or liquid. It is a soft metal and is extremely malleable and ductile. Because it is so malleable, it is often added to other metals like silver or platinum to create an alloy that is more durable.Full Answer >