[permalink] [id link]
Most metals that are of similar or higher density than gold are similarly or more expensive, and were unknown in ancient times ( notably the platinum group ); only two relatively inexpensive substances are of similar density to gold: depleted uranium and tungsten.
Some Related Sentences
Most and metals
Most macroscopic inorganic solids are polycrystalline, including almost all metals, ceramics, ice, rocks, etc.
Most of the country's products are in engineering, especially in automobiles, machinery, metals, and chemical goods.
Most of the other metals, where the first-mentioned tendency dominates, are nonmagnetic ( e. g. sodium, aluminium, and magnesium ) or antiferromagnetic ( e. g. manganese ).
Most base metals ( copper, lead, zinc, nickel ) are traded internationally on the London Metal Exchange, with smaller stockpiles and metals exchanges monitored by the COMEX and NYMEX exchanges in the United States and the Shanghai Futures Exchange in China.
Most rackets are now made of composite materials including carbon fibre, fiberglass, metals such as titanium alloys or ceramics.
Most metals and ceramics, along with many other materials, are isotropic, and their mechanical properties are the same in all orientations.
Most usable metallic ores in the Earth's crust are oxides or sulfides, and as such do not manifest the properties of refined metals.
Most metals are crystalline in their solid state, which means they have a highly ordered arrangement of atoms.
Most of the industry here revolves around mining precious metals as well as the manufacture of drywall and masonry materials.
Most crystal scintillators require high-purity chemicals and sometimes rare-earth metals that are fairly expensive.
Most definitions of the term ' refractory metals ' list the extraordinarly high melting point as a key requirement for inclusion.
Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium, magnesium, lead, pewter and tin based alloys.
Most base metals in acidic solution precipitate in contact with free sulfide, e. g. from H < sub > 2 </ sub > S or NaHS.
Most commonly, allyl ligands bind to metals via all three carbon centers, the so-called η < sup > 3 </ sup >- binding mode.
Most and are
Most students of literature, whether they call themselves scholars or critics, are ready to argue that it is possible to understand literary works as well as to enjoy them.
Most Juniors who were entered in the Finals are seasoned campaigners and not only show and win in Junior Classes but score in the Breed Classes as well.
Most beakers are graduated in cubic centimeters ( cc. ), making it necessary to convert the result to cubic inches.
Most manufacturers also seem to be concentrating on formulating fire-resistant or self-extinguishing grades of urethane foam that are aimed specifically at the burgeoning building markets.
Most other desserts are fruit in some form, fresh fruits once daily at least, sometimes at snack time.
The general board declared: `` Most of the Protestant churches hold contraception and periodic continence to be morally right when the motives are right.
1 ) Most of the legends that are created to fan the fires of patriotism are essentially propagandistic and are not folk legends at all.
Most Jewish mothers are determined to exercise vigilance over the social and sexual lives of their daughters by keeping them home.
Most members of the U.S. Senate, because they are human, like to eat as high on the hog as they can.
Most of these former churches are now used as warehouses, but `` neither Anglicans nor Nonconformists object to selling churches to Roman Catholics '', and have done so.
Most references to " amoebas " or " amoebae " are to amoeboids in general rather than to the specific genus Amoeba.
Most modern character-encoding schemes are based on ASCII, though they support many additional characters.
Most have four limbs and live in fresh water or on land but the caecilians, though included in the group, live in burrows in damp soil and are limbless.