Ben Franklin
Pythagoras was an advanced Greek mathematician for his time. His impact was his discovering the numerical ratios of intervals in the music scales along with his theorem that the square on the hypotenuse of a right angled triangle is equal to the sum of the squares of the other two sides. Amazing for ancient times.
They actually weren't stones, but cobblestones. Cobblestones are shaped stone in squares and put together in a set pattern and measured . The road was leveled and the stones set in sand.
Blackboards, also known as chalkboards, were originally made from sheets of slate, a fine grained metamorphic rock derived from clay. Slate had the double advantage of being easily split into fine sheets, and having a surface just rough enough for chalk to adhere to. Quarrymen would split the sheets of slate and dress them into squares or rectangles to be mounted in classrooms.Chalk originally was also a rock: a soft, white, porous limestone composed of calcium carbonate.Blackboards or chalkboards were used in schoolrooms from at least the early 19th Century right down to the present, but more recently have been largely supplanted by whiteboards or dry erase boards which do not suffer from the dust problem generated by chalk. Chalkboards themselves, where still used, have not been made from slate for a long time, nor has chalk been made from limestone. Both were replaced by manufactured substitutes.Despite the chalkboard being today pretty much obsolete, you will still hear the term "chalk talk" used when a speaker or teacher illustrates points by drawing or writing on a dry erase board or easel tablet.
Photographer and Cinematographer Rights1. You can make a photograph of anything and anyone on any public property, except where a specific law prohibits it.e.g. streets, sidewalks, town squares, parks, government buildings open to the public, and public libraries.2. You may shoot on private property if it is open to the public, but you are obligated to stop if the owner requests it.e.g. malls, retail stores, restaurants, banks, and office building lobbies.3. Private property owners can prevent photography ON their property, but not photography OFF their property from a public location.4. Anyone can be photographed without consent when they are in a public place unless there is a reasonable expectation of privacy.e.g. private homes, restrooms, dressing rooms, medical facilities, and phone booths.5. Despite common misconceptions, the following subjects are almost always permissible:* accidents, fire scenes, criminal activities* children, celebrities, law enforcement officers* bridges, infrastructure, transportation facilities* residential, commercial, and industrial buildings6. Security is rarely an acceptable reason for restricting photography. Photographing from a public place cannot infringe on trade secrets, nor is it terrorist activity.7. Private parties cannot detain you against your will unless a serious crime was committed in their presence. Those that do so may be subject to criminal and civil charges.8. It is a crime for someone to threaten injury, detention, confiscation, or arrest because you are making photographs.9. You are not obligated to provide your identity or reason for photographing unless questioned by a law enforcement officer and state law requires it.10. Private parties have no right to confiscate your equipment without a court order. Even law enforcement officers must obtain one unless making an arrest. No one can force you to delete photos you have made.These are general guidelines regarding the right to make photos and should not be interpreted as legal advice. If you need legal help, please contact a lawyer.
Benjamin Franklin would concoct magic squares when debates got rather tedious
Ben Franklin
Martha Miller has written: 'Circles, squares' -- subject(s): American Etching, Etching, American, Wood-engraving, American
Lemon squares are believed to have originated in the United States. The exact origins are unclear, but they are a popular dessert in American cuisine.
The average American uses 57 sheets of toilet paper a day.
The Hollywood Squares game show's host was Peter Marshall. He is the best-known Square-Master. Hollywood Squares is an American panel game show in which two contestants play tic-tac-toe to win prizes or money.
A jaguar is a American wild animal, a relative of the leopard family, only the marks are larger squares.
American Olean Satinglo 1x1 has black diamonds approximately a half inch on the sides.
There are 48 such squares.
There are 9 squares I can see 12 squares in an array of 2 * 4 squares
There are many different sized squares on a chessboard. The smallest squares are in an 8x8 grid, so we have 64 small squares. There are 7x7 2x2 squares, so we have 49 2x2 squares There are 6x6 3x3 squares, so we have 36 3x3 squares There are 5x5 4x4 squares, so we have 25 4x4 squares There are 4x4 5x5 squares, so we have 16 5x5 squares There are 3x3 6x6 squares, so we have 9 6x6 squares There are 2x2 7x7 squares, so we have 4 7x7 squares And there's the one big square that's the chessboard. All this adds up to 204 squares.
64 squares. EDIT There are 64 1x1 squares on a standard checkerboard, but there are also squares of other sizes. There are; 64 1x1 squares 49 2x2 squares 36 3x3 squares 25 4x4 squares 16 5x5 squares 9 6x6 squares 4 7x7 squares 1 8x8 square So in total there are 204 squares on a standard checkerboard.