How can you tell the difference between aluminum and other non-magnetic metals, such as what I've heard called, pot-metal?
Well there's many ways to do this but I would think the easiest way would be to weigh the two metals and aluminum will be lighter.
Aluminum is very light. Pot metal, also known as white metal, die-cast zinc, or monkey metal,[1] is a slang term that refers to alloys that consist of inexpensive, low-melting point metals used to make fast, inexpensive castings. There is no scientific metallurgical standard for pot metal; common metals in pot metal include zinc, lead, copper, tin, magnesium, aluminium, iron, and cadmium. The primary advantage of pot metal is that it is quick and easy to cast. Due to its low melting temperature no sophisticated foundry equipment is needed and specialized molds are not necessary. It is sometimes used to experiment with molds and ideas before using metals of higher quality. Examples of items created from pot metal include toys, furniture fittings, tool parts, electronics components, and automotive parts.[citation needed] Pot metal can be prone to instability over time, as it has a tendency to bend, distort, crack, shatter, and pit with age.[1] The low boiling point of zinc and the fast cooling of the newly-cast part often allow air bubbles to remain within the cast part, weakening the metal.[1] Many of the components of pot metal are susceptible to corrosion from airborne acids and other contaminants, and the internal corrosion of the metal often causes the decorative plating to flake off.[citation needed] Pot metal is not easily glued, soldered or welded.[1] At one time, pot metal referred to a copper alloy that was primarily alloyed with lead. 67% Cu, 29% Pb 4% Sb and 80% Cu, 20% Pb were common formulations.[2] The primary component of pot metal is zinc, but often the caster adds other metals to the mix to strengthen the cast part, improve the flow of the molten metal, or to reduce cost.[dubious – discuss] With a low melting point of 419 °C (786 °F), zinc is often alloyed with other metals including lead, tin, aluminium and copper.
An aluminum bat hits a ball futher than a wooden bat since of the way the wooden bat bends when the ball makes contact, the wooden bat has a sweet spot while the metal one doesn't really have that spot but doesn't break like it's wooden counterpart so the metal bat gives the ball more pop.
