The mattress laid on it will not be in level. It will be uneven with depressions or may sag to one part of the mattress.Often the weak spring will be soft to press while the other springs will keep the mattress straight and a little strong when pressed.
US coins were never made of pure silver, it's too soft. They had at least 10% copper in them so they wouldn't wear out right away. Please see the Related Question for more.
Half dollars were never made of solid silver. It's far too soft to use in a circulating coin. US halves were made of 90% silver up till 1964, and 40% silver from 1965 to 1970. Please post a new question with the coin's date for more specific information.
See other post The US never made circulating $1 coins from pure silver, it's far too soft so the metal was alloyed with 10% copper. The closest things to a pure silver "dollar" are the so-called Eagle coins minted since 1986 for sale to collectors and investors, but these aren't intended to circulate. Please determine the date on your coin and post a more specific question.
What you are seeing is the letters/numbers SS 92.5, this means the ring is Sterling Silver 92.5 percent pure silver. Fine silver (99.9% pure) is generally too soft for producing functional objects; therefore, the silver is usually alloyed with copper to give it strength while preserving the ductility and beauty of the precious metal. Other metals can replace the copper, usually with the intent to improve various properties of the basic sterling alloy such as reducing casting porosity, eliminating fire scale, and increasing resistance to tarnish.
The difference is in the name; soft corals are soft have body ; with no bony or hard Parts
well is that one is hard and the other one is soft.
Soft data is stored on a data disk or hard drive. Where as hard data is printed.
a soft floor usually has carpet and a hard floor has wood or other things that are hard.
It is a difference between the hardness, generally expressed in the Mohs scale.
hard cheese is hardend by FAT! and i like soft cheese better than hard cheese. =]
The difference is in the name; soft corals have a soft body, with no bony or hard parts. In contrast, hard corals have a hard endoskeleton made of calcium carbonate.
soft money is given in unlimited amounts
soft wood is easy to cut but not good to make stuff and hard wood is hard to cut but good to make with
A soft market has more suppliers than buyers and hard market is the total opposite.
frequency for hard xray value
The innate soft texture of the soft rubber tires differentiates the soft rubber tires from their closely-related hard rubber tires.