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2. Positive and Negative Syndrome Scale - Wikipedia

   en.wikipedia.org/wiki/Positive_and_Negative...

   The scale is the "gold standard" for evaluating the effects of psychopharmacological treatments. [ 1 ] [ 2 ] The name refers to the two types of symptoms in schizophrenia, as defined by the American Psychiatric Association : positive symptoms, which refer to an excess or distortion of normal functions (e.g., hallucinations and delusions ), and ...

3. Weighing scale - Wikipedia

   en.wikipedia.org/wiki/Weighing_scale

   "Lady Justice" holding a 2-pan balance beam scale, and a sword: Statue of Justice, Central Criminal Court, London, UK. The scales (specifically, a two-pan, beam balance) are one of the traditional symbols of justice, as wielded by statues of Lady Justice. This corresponds to the use in a metaphor of matters being "held in the balance".

4. Roberval balance - Wikipedia

   en.wikipedia.org/wiki/Roberval_Balance

   The Roberval balance is a weighing scale presented to the French Academy of Sciences by the French mathematician Gilles Personne de Roberval in 1669. In this scale, two identical horizontal beams are attached, one directly above the other, to a vertical column, which is attached to a stable base.

5. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

6. Triple beam balance - Wikipedia

   en.wikipedia.org/wiki/Triple_beam_balance

   Before using triple beam balance, the scale pointer should be at zero. The zero adjustment knob can be used to adjust the scale pointer. The objects are placed on the pan and the riders are adjusted. The hundred rider should be initially adjusted and follow by the tens rider. The ones rider is adjusted until the scale pointer is at zero again.

7. Balance puzzle - Wikipedia

   en.wikipedia.org/wiki/Balance_puzzle

   1) Subdivide the coins in to 2 groups of 4 coins and a third group with the remaining 5 coins. 2) Test 1, Test the 2 groups of 4 coins against each other: a. If the coins balance, the odd coin is in the population of 5 and proceed to test 2a. b. The odd coin is among the population of 8 coins, proceed in the same way as in the 12 coins problem.