Net run rate tables from the ICC add up only when overs are counted in balls
Net run rate is a cricket side's runs per over minus the runs per over scored against it, across every match with a resu...
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Humidity adds close to 400 feet to density altitude at Changi
Water vapour is lighter than dry air, so humid air raises density altitude even at a sea-level airport. At Changi's Apri...
One study's medium Cohen's d is compatible with effects from below small to large
Cohen's d, Hedges' g and Glass's Δ all divide a difference between two means by a standard deviation, and differ in whic...
Looking up a MAC address by its first three bytes misses the holders of smaller IEEE blocks
A MAC address carries two flag bits and, for a factory address, the organisation that bought its block from the IEEE. In...
Calculated LDL reads lower on Friedewald's formula than on Martin-Hopkins at high triglycerides
A calculated LDL is total cholesterol minus HDL minus an estimate of the cholesterol in VLDL, and the Friedewald, Martin...
A cat's age in human years is read off a chart printed with no stated basis
The usual cat-years chart gives 15 human years for a cat's first year, 24 by its second birthday and 4 for each year aft...
Readability formulas fitted to the same readers still disagree by about a grade and a half
Flesch-Kincaid, SMOG and other readability formulas give one text different grade levels because each counts a different...
Homebrew ABV formulas part ways once original gravity reaches 1.070
Homebrewers turn original and final gravity readings into alcohol by volume with one of two formulas, which agree closel...
The same wind speed can mean twice the pressure, depending on its averaging time
Wind pressure follows the square of the speed, so whether a figure is a 3-second gust or a 10-minute mean can more than...
Dropping the sex point from the AF stroke score moved no combination between bands
In 2024 the European Society of Cardiology replaced the CHA2DS2-VASc stroke score for atrial fibrillation with CHA2DS2-V...
Revised Romanization and McCune-Reischauer agree on 15.8% of a Korean learner's dictionary
Revised Romanization and McCune-Reischauer both spell Korean as it is pronounced, yet they spell only 15.8% of the 44,03...
Thunder covers a kilometre in under three seconds in Singapore air
Dividing the seconds between a lightning flash and its thunder by three gives kilometres, but in Singapore's air sound c...
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