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SCIENCE & TECHNOLOGY

SUBSTANCES

RAREST ELEMENT:-
bullet  RADON
bullet  THERE ARE ONLY 2.45 KG OF RADON ON EARTH AND IN THE ATMOSPHERE
SMELLIEST SUBSTANCE:-
bullet  ETHYL MARCAPTAN (C2H5SH)
bullet  ITS SMELL RESEMBLES A COMBINATION OF ROTTING CABBAGE, GARLIC, ONIONS, BURNT TOAST AND SEWER GAS
STRONGEST ACID:-
bullet  FLUOROANTIMONIC ACID
bullet  ACIDITY = 10,000,000,000,000,000,000 x SULPHURIC ACID
SWEETEST SUBSTANCE:-
bullet  KATEMFE PLANT (THAUMATOCOCCUS DANIELLII
bullet  FOUND IN WEST AFRICA
bullet  6150 TIMES AS SWEET AS 1% OF SUCROSE (SUGAR) SOLUTION
MOST MAGNETIC SUBSTANCE:-
bullet  NEODYMIUM IRON BORIDE (Nd2Fe14B1)
bullet  280kJ/m(cubed)
bullet  IT CAN ATTRACT AN OBJECT WHICH WEIGHS 1000KG AND 280M AWAY!
EXTREMES

TEMPERATURES:-
bullet  HIGHEST= 400 MILLION DEGREES CELSIUS
bullet  ACHIEVED USING A HYDROGEN BOMB
bullet  LOWEST = -273.15000000000028 DEGREES CELSIUS
bullet  ACHIEVED USING NUCLEAR DEMAGNETIZATION
bullet  NOTE: SCIENTIST BELIEVE THAT -273.15 IS THE LOWEST POSSIBLE TEMPERATURE
LOWEST FRICTION:-
bullet  POLYTETRAFLUOROETHYLENE
bullet  EQUIVALENT TO WET ICE ON WET ICE
HIGHEST SPEED:-
bullet  150KM/SEC
bullet  ACHIEVED USING A PLASTIC DISC IN WASHINGTON, 1980
MOST POWERFUL MICROSCOPE:-
 
bullet SCANNING TUNNELLING ELECTRON MICROSCOPE
bullet  INVENTED BY IBM, SWITZERLAND
bullet  CAN VIEW ONE HUNDREDTH OF THE DIAMETER OF AN ATOM
MOST POWERFUL LASER:-
bullet  "NOVA"
bullet  MANUFACTURED IN CALIFORNIA
bullet  1 (FOLLOWED BY 14 ZEROS) WATTS
bullet  POWER OUTPUT IS EQUIVALENT TO ALL ELECTRICAL POWER STATIONS IN BRITAIN PUT TOGETHER
MATHEMATICS

HIGHEST NUMBERS:-
 
bullet HIGHEST ACCEPTABLE = CENTILLION, 1 FOLLOWED BY 600 ZEROS, ONLY USED IN BRITAIN AND GERMANY
bullet  10 FOLLOWED BY 100 ZEROS IS CALLED A GOOGOL, A NAME SUGGESTED BY DR. EDWARD'S 9-YEAR-OLD NEPHEW
bullet  10 TO THE POWER OF GOOGOL IS CALLED A GOOGOLPLEX
bullet  HIGHEST NUMBER EVER USED IS 10 TO THE POWER OF 140, CALLED ASANKHYEYA. MENTIONED IN A BUDDHIST BOOK IN 100 BC
PERFECT NUMBER:-
bullet  A PERFECT NUMBER IS A NUMBER WHICH IS EQUIVALENT TO ALL OF ITS FACTORS ADDED TOGETHER
bullet  SMALLEST : 6=1+2+3
bullet  LARGEST :[(2 TO THE POWER OF 756,839)-1 X 2 TO THE POWER OF 756.838]
LONGEST MEASURE OF TIME:-
bullet  KALPA IN HINDU CHRONOLOGY
bullet  EQUIVALENT TO 4320 MILLION YEARS
TECHNOLOGY

FASTEST COMPUTER:-
bullet  BELONGS TO AN AMERICAN POWER STATION
bullet  MANUFACTURE BY IBM
bullet  THE CALCULATIONS MADE IN ONE SECOND BY THE COMPUTER COULD BE MADE IN 1 MILLION YEARS BY A MATHEMATICIAN
FASTEST PC:-
bullet  2.5 GegaHertz
bullet  2500 MH
bullet  INVENTED BY SEVERAL COMPANIES
LARGEST BATTERY:-
bullet  10MW LEAD ACID
bullet  CALIFORNIA, USA
bullet  COSTS 13 MILLION US DOLLARS
bullet  USED AS A SUB-STATION FOR LEVELLING PEAK DEMAND LOADS
bullet  MORE POWERFUL THAN MANY TYPES OF POWER STATIONS
OLDEST MACHINERY:-
bullet  DALU
bullet  WATER RAISING INSTRUMENT
bullet  USED IN IRAQ
bullet  3500 BC
COMMUNICATIONS

GREATEST NUMBER OF TELEPHONE CALLS:-
bullet  AMERICA
bullet  436,220 MILLION CALLS PER YEAR
BUSIEST ROUTES:-
bullet  BETWEEN AMERICA AND CANADA
bullet  3.3 BILLION MINUTES OF TWO-WAY TRAFFIC BETWEEN THE 2 COUNTRIES IN 1991
LARGEST TELEPHONE:-
bullet  2.47M HIGH, 6.06M LONG
bullet  WEIGHED 3.5 TONNES
bullet  HANDSET= 7.14M LONG.
bullet  COUNTRY: HOLLAND
bullet  NOTE: THE HANDSET HAD TO BE LIFTED WITH A CRANE!