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Professional ice carvers use ice specifically made for carving. It is made in a tank with constantly flowing water to produce very clear, hard ice. If you attempt to make a carving block with still frozen water, it will shatter when you try to carve.
a sharp hard rock
Technology is the use of applied science. So when you use a rock hammer you are applying science to it.
Those rock layers are quite colorful.
Rock salt should NOT be used in your Neti Pot. It has several minerals which otherwise good for health, may have an irritating effect on the sinuses.
they used fat acids by chicken
The Olmecs used spears, atlatls (spear thowers), and clubs.
The Olmecs used 3 calendars.
40 year calender
granite
there hands
Professional ice carvers use ice specifically made for carving. It is made in a tank with constantly flowing water to produce very clear, hard ice. If you attempt to make a carving block with still frozen water, it will shatter when you try to carve.
a rock knif
Scientists think they made Mirrors out of Hematite.
they buit things with it lived in it ,and ate from it
stone and granite
Rock and Metal. LINKIN PARK!!