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The femtometre (American spelling femtometer), symbol fm, [1] [2] (derived from the Danish and Norwegian word femten 'fifteen', Ancient Greek: μέτρον, romanized: metron, lit. 'unit of measurement') is a unit of length in the International System of Units (SI) equal to 10 −15 metres , which means a quadrillionth of one metre.
Simple back-of-the-envelope test takes the sample maximum and minimum and computes their z-score, or more properly t-statistic (number of sample standard deviations that a sample is above or below the sample mean), and compares it to the 68–95–99.7 rule: if one has a 3σ event (properly, a 3s event) and substantially fewer than 300 samples, or a 4s event and substantially fewer than 15,000 ...
A blue whale has been measured as 33 m (108 ft) long; this drawing compares its length to that of a human diver and a dolphin. The decametre (SI symbol: dam) is a unit of length in the metric system equal to 10 meters (10 1 m). To help compare different orders of magnitude, this section lists lengths between 10 and 100 meters.
My musculoskeletal and my heart were the youngest – 27.13 and 29.27, respectively – which Dawson said made sense based on my six-day-per-week running and exercise routines.My other organ ...
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The house has central heating and air conditioning, a natural gas fireplace and ample closet space. And yet, modern amenities aside, this is no normal home.
Femtotechnology is a term used in reference to the hypothetical manipulation of matter on the scale of a femtometer, or 10 −15 m. This is three orders of magnitude lower than picotechnology, at the scale of 10 −12 m, and six orders of magnitude lower than nanotechnology, at the scale of 10 −9 m.
Of course, it's very normal to lose a few strands every day, but how much is enough to cause concern and prompt a dermatologist visit? Ahead, two experts give us a breakdown.