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2. Radar beacon - Wikipedia

   en.wikipedia.org/wiki/Radar_beacon

   In the United States a longer duty cycle is used, 50% for battery-powered buoys (20 seconds on, 20 seconds off) and 75% for on-shore beacons. Ramarks are wide-band beacons which transmit continuously on the radar bands without having to be triggered by an incoming radar signal. The transmission forms a line of Morse characters on the display ...

3. Discount card - Wikipedia

   en.wikipedia.org/wiki/Discount_card

   Cards may be issued as part of a loyalty program, offering discounts to existing customers to ensure their continuing custom; they may be offered free of charge, offering a modest discount with the intention of persuading purchasers to patronise participating shops; or they may be sold to members, offering larger discounts—for example, the tastecard offers 50% discounts at many restaurants ...

4. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_Code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

5. Obama vs. Romney Electoral Map - elections.huffingtonpost.com

   elections.huffingtonpost.com/2012/romney-vs...

   Maps and electoral vote counts for the 2012 presidential election. Our latest estimate has Obama at 323 electoral votes and Romney at 191.

6. Radioisotope thermoelectric generator - Wikipedia

   en.wikipedia.org/wiki/Radioisotope...

   A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect. This type of generator has no moving parts and is ...

7. Raccoon - Wikipedia

   en.wikipedia.org/wiki/Raccoon

   The raccoon (/ rəˈkuːn / or US: / ræˈkuːn / ⓘ, Procyon lotor), also spelled racoon[ 3 ] and sometimes called the common raccoon or northern raccoon to distinguish it from the other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of 40 to 70 cm (16 to 28 in), and a body weight ...