The 3,500 commonest Chinese characters mostly have an exact Mandarin homophone
By Unicode's Unihan 17.0 readings, 89% of the 3,500 first-level characters on mainland China's 2013 standard list share...
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Rare blood-group variants allow most of the child blood types a chart forbids
The textbook ABO rule forbids at least one child blood type for every pairing of parent types except A with B. Rare inhe...
A bathroom scale's rounding can shift a sweat-rate test by a tenth of a litre an hour
Sweat rate is body weight before exercise minus weight after, plus fluid drunk, minus urine, divided by the hours. On a...
QT correction formulas agree at 60 beats a minute and drift apart either side
Bazett, Fridericia and Framingham correct the QT interval to a heart rate of 60 beats a minute, where all three give the...
Five years' service lifts Peninsular Malaysia's statutory severance pay for every year worked
In Peninsular Malaysia and Labuan, the Employment (Termination and Lay-Off Benefits) Regulations 1980 set severance pay...
Blood type explains almost none of the variation in large Japanese and US surveys
The belief that ABO blood type shapes temperament and compatibility has been popular in Japan since a 1971 book. In surv...
NParks allows about twice the time Naismith's rule gives on Singapore trails
Naismith's 1892 rule allows an hour for every three miles plus an hour for every 2,000 feet of climb, and the day he sai...
A baby's growth percentile depends on the chart behind it
A growth percentile ranks one measurement against a reference group of children, and the WHO 2006 standard, the US CDC 2...
Generation charts disagree on a third of post-war birth years
Pew, McCrindle, the US Census Bureau and Indonesia's statistics office give different generation labels, or none, for 27...
IFRS 16 puts leased equipment on a lessee's balance sheet
Under IFRS 16 and its Singapore and Malaysian equivalents, a lessee records most equipment leases as an asset and a debt...
Taiwan's marriage law extends to second cousins, and other ways cousins are counted
A cousin's degree and removal come from counting the generations from each person up to the ancestor they share. Counted...
IBAN check digits catch every wrong digit and nearly every letter typo
An IBAN's check digits caught every wrong digit we typed into SWIFT's 89 example IBANs, and missed a few errors that swa...
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