1
Very Insightful Person
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2
Very Insightful Person
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3
Very Insightful Person
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4
Alessandro Volta
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6
Very Insightful Person
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7
Forum Team (Retired)
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8
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9
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10
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12
Very Insightful Person
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13
On our wavelength
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15
Very Insightful Person
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16
Wise owl
Helpful Answer: 1
17
Up to speed
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18
On our wavelength
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19
Joining in
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20
Rising star
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21
On our wavelength
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