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Wed, Feb 28, 2024 17:48
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[adv.] OpTest's OpTiSurf


OpTest's "OpTiSurf" is indeed a new way to measure surface roughness. According to OpTest, "The OpTiSurf revolutionizes the measurement of surface roughness of paper. Using advanced optics and algorithims, it quickly quantifies the optical roughness of entire sheets. OpTiSurf correlates with traditional air leak tests but has greater precision and speed, with less maintenance." And I would emphasize that no air is required. I suggest you look at it today--just click on "More" below.

And when you talk to OpTest, please say hello for us here at Nip Impressions.



The riddle last week asked: The mass of the earth is approximately 6 and a bunch of zeroes metric tons. How many zeroes?

Answer to last week's riddle: The estimated mass of the earth is 5,940,000,000,000,000,000,000 metric tons, so the answer is 21 zeroes. Source:


This week's riddle: Where were the four "super-volcanic" eruptions of the last two million years – that is eruptions with a minimum of 750 cubic kilometers of magma?
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