Community Ranking | Your Ranking
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1.
computer (1880)
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2.
Internet (1207)
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3.
Lightbulb (1000)
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4.
Wheel (948)
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5.
Automobile (880)
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6.
Telephone (675)
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7.
Electricity (649)
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8.
Television (618)
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9.
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10.
Cell Phone (256)
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11.
Toilet (214)
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12.
Antibiotics (178)
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13.
Airplane (167)
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14.
Microwave (140)
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15.
Microchip (138)
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16.
Radio (114)
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17.
Sliced Bread (111)
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18.
Condoms (108)
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19.
Refrigerator (103)
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20.
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21.
iPod (93)
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22.