Famous personalities - Presidents of the United States. Crosswordist's Handbook

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Famous people / History / Presidents of the United States

(3)

BUSH George Herbert Walker Sr. (1924) - 41st

BUSH George Walker Jr. (1946) - 43rd

(4)

Pierce Franklin (1804-1869) - 14th

POLK James Knox (1795-1849) - 11th

TAFT William Howard (1857-1930) - 27th

FORD Gerald Rudolph (1913) - 38th

HAYS Rutherford Burchard (1822-1893) - 19th

(5)

ADAMS John (1735-1826) - 2nd

ADAMS John Quincy (1767-1848) - 6th

ARTHUR Chester Alan (1830-1886) - 21st

GRANT Ulysses Simpson (1822-1885) - 18th

MONROE James (1758-1831) - 5th

OBAMA Barack (1961) - 44th

TRUMP Donald (1946) - 45th

(6)

BIDEN Joe (1942) - 46th

CARTER James Earle (1924) - 39th

COOLIDGE Calvin (1872-1933) - 30th

NIXON Richard Milhouse (1913-1994) - 37th

REAGAN Ronald Wilson (1911-2004) - 40th

TYLER John (1790-1862) - 10th

TAYLOR Zachary (1784-1850) - 12th

TRUMAN Harry (1884-1972) - 33rd

FILMORE Millard (1800-1874) - 13th

(7)

WILSON Thomas Woodrow (1856-1924) - 28th

HARDING Warren (Harding), (1865-1923) - 29th

GARFIELD James Abram (1831-1881) - 20th

JOHNSON Lyndon (1908-1973) - 36th

JACKSON Andrew (1767-1845) - 7th

KENNEDY John Fitzgerald (1917-1963) - 35th

CLINTON William Jefferson (1946) - 42nd

(8)

BUCHANAN James (1791-1868) - 15th

HARRISON Benjamin (1833-1901) - 23rd

HARRISON William Henry (1773-1841) - 9th

CLEVELAND Stephen Grover (1837-1908) - 22nd - 24th

LINCOLN Abraham (1809-1865) - 16th

ROOSEVELT Theodore (1858-1919) - 26th

ROOSEVELT Franklin Delano (1882-1945) - 32nd

(9)

WASHINGTON George (1732-1799) - 1st

(10)

JEFFERSON Thomas (1743-1826) - 3rd

Eisenhower Dwight David (1890-1969) - 34th

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In the science fiction film "Predator" the hero of Arnold Schwarzenegger was hiding from the "thermal vision" of the alien, smeared with a layer of wet and cold mud. But if he had used a new "thermal camouflage" material developed by a group of scientists from the University of Manchester, then Arnold Schwarzenegger would have been much easier and more effective in hiding from a predator.

The new thin, flexible and lightweight material consists of three even thinner layers. The top layer is several sub-layers of graphene, a form of carbon whose crystal is one atom thick. The bottom layer is made of fire-resistant nylon coated with a layer of gold. The two layers are electrodes separated by a membrane impregnated with ionic liquid, an aqueous solution of several types of salts that contains both positively charged and negatively charged ions.

When a small electric current is passed through this material in a certain direction, ions begin to move from the membrane towards the graphene electrode. In a few seconds, the concentration of ions increases so much that the amount of infrared radiation from the graphene surface is drastically reduced. And since almost all night cameras register exactly infrared light, this method of blocking this radiation will make an object hidden under a layer of camouflage material invisible to cameras.

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“We have implemented a completely new principle for electrically controlling the amount of infrared light emitted,” the researchers wrote. “In addition to adaptive thermal camouflage systems, this technology can be used in many other areas, ranging from adaptive infrared optics to space technology.”

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