Um...God.
An alien! (=
Matt taverna
It is unknown when the sand timer, also known as the hourglass, was invented. There are records of sand timers being used as early as the 1300s when they were a preferred timepiece for sailing, as other forms of keeping time were not reliable on the swaying ships.
The first recorded instance of sandpaper was in 13th century in China when crushed shells, seeds, and sand were bonded to parchment using natural gum. and beelieved to be made By Indians
Plastering sand is find sand screened to suit the plaster coarse i.e. base coat or finish coat. For finish coat very fine sand is used. Sand for concrete is not sived if pebles are not present. Both sand shall be sweet sand, if from sea it has to be washed before use.
the maker and the first sand clock is unknown
Sand bags where invented in the 1800's. The man/woman who invented them is unknown
An alien! (=
Matt taverna
Gene Sarazen invented the sand wedge and started using it in 1935.
The sand clock, also known as an hourglass, is believed to have been invented in the 8th century by the Arabs. The concept of measuring time using the flow of sand through a narrow opening has been used for centuries for various timekeeping purposes.
It is unknown when the sand timer, also known as the hourglass, was invented. There are records of sand timers being used as early as the 1300s when they were a preferred timepiece for sailing, as other forms of keeping time were not reliable on the swaying ships.
Flint stones.
In 1918, a Swiss watchmaker named sand slave
I think an very smart guy invented sand surfing! lol
SheiBie ? It was discovered; writing in sand can be "erased"
no body is sure in which year the sun clock was invented but we think it was invented by the greeks or roman or egyptians