Amelia Wong is a RECATOOLS editorial persona focused on consumer technology, digital wellness, health-related tools, calculators, and practical lifestyle explainers. Articles under this byline help readers understand everyday data, online tools, and wellness-related information without replacing professional advice.

About this byline

Amelia Wong is a RECATOOLS editorial persona for consumer technology and wellness-related tool coverage. Articles are produced and reviewed under RECATOOLS editorial supervision.

Editorial responsibility for this byline rests with Jeffrey Tan (Tan Seng Fei), RECASYS, Singapore. Our Editorial Policy sets out how sources are reviewed, how AI-assisted workflows are used, and how editorial desks and personas are defined.

189
Articles
Health & Wellness
Primary beat
Jun 2026
Writing since
~1269 min
Total reading
All 189 Health & Wellness 90 Consumer Tech 55 Home & Living 30 Personality 9 Chinese Culture 4 AI & ML 1

Articles · Home & Living Showing 1–10 of 30

Rain running off the edge of a roof gutter in a heavy shower
Home & Living

How hard design rain falls on a roof gutter in Singapore and Malaysia

The water a roof gutter must carry is the design rainfall intensity multiplied by the roof's catchment area, and codes in England, the US, Australia, Singapore and Malaysia assume very different intensities. On our reading of PUB's rainfall chart, a 100 m² roof at a 30° pitch sends about 7.7 litres a second into its gutter in Singapore's ten-year, five-minute rain.

19 Oct 2026 · 6 min read
Two hands pressing out a round of pizza dough on a floured counter
Home & Living

Neapolitan pizza dough in baker's percentages, from the AVPN and EU rules

Neapolitan pizza dough has two written specifications, the AVPN's and the EU's, and both measure every ingredient against one litre of water. Converted to baker's percentages, the AVPN's 2024 table gives 55.6–62.5% hydration, while the EU text's flour total can be read more than one way.

18 Oct 2026 · 6 min read
A baked cake still in a round springform tin, resting on a striped cloth
Home & Living

Cake tin size charts hold up on area swaps and vary on cups

Scaling a recipe to another cake tin by base area keeps the batter as deep as the recipe intended, while the tin's capacity decides whether it fits. We checked published round-to-square swaps and cups-per-tin charts against geometry and against each other.

15 Oct 2026 · 6 min read
A golden dog lying on gravel while her puppies feed
Home & Living

Dog pregnancy length and why counting from mating widens the due date

A dog's pregnancy averages about 63 days counted from ovulation, but how wide the window is depends on which event starts the count. In one Beagle colony, births fell on 16 different days counted from the first mating and on 3 counted from the luteinising hormone peak.

15 Oct 2026 · 6 min read
A long flight of wide grey stone steps rising evenly away from the viewer
Home & Living

Singapore, Malaysia and Hong Kong codes set stair risers lower than a US layout assumes

Singapore's Fire Code and Hong Kong's Fire Safety Code limit risers in their escape stairs to 175 mm, and Malaysia's building by-laws set 180 mm for any staircase. A stair laid out to a 7½-inch riser, just inside the US model code's limit, came out taller than the Singapore and Hong Kong figure at every floor height we tried.

14 Oct 2026 · 6 min read
Close portrait of a calico cat with green eyes
Home & Living

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 after, and the 2010 veterinary guidelines that carry it state no basis for those numbers. Set against UK life tables, it puts the average cat's lifespan 17 to 19 human years short of a person's.

12 Oct 2026 · 6 min read
A red Chinese knot with a long tassel hanging from a flowering branch
Home & Living

Chinese knots are far older than the name a 1981 Taipei book made common in Taiwan

The name Chinese knot (中國結) became common in Taiwan after a 1981 Taipei book, according to the Taipei City Government, while the knots themselves go back far further. The book's editions by catalogue record, the thirteen basic knots, what museum pieces show, where the craft is a registered heritage item, and whose meanings are whose.

3 Oct 2026 · 6 min read
An ink brush resting on an inkstone beside freshly brushed characters
Home & Living

South Korea's limit on hanja in names is an exact sum of three lists

South Korea's schools have a list of 1,800 basic hanja, and its name rules allow 9,389 entries (인명용 한자), which is those 1,800 plus two Supreme Court tables. How each list has changed, why a hanja's spelling moves within a word, and why a Traditional or Japanese form can miss the Korean one.

3 Oct 2026 · 6 min read
Three generations of a family sharing a meal around a cone of yellow rice
Home & Living

Kakak is an older sister in Malaysia and any older sibling in Indonesia

Malaysia's Kamus Dewan Perdana defines kakak as an older sister; Indonesia's KBBI defines it as an older sibling. Malay and Indonesian family words compared in the two dictionaries: bibi, buyut, cousins, in-laws, and the birth-order titles from Long to Su.

3 Oct 2026 · 6 min read
A person writing large kanji with an ink brush on white paper
Home & Living

Japan's 2020 school kanji table moved more characters than it added

Japanese elementary schools teach 1,026 kanji. The 2020 table added 20 prefecture kanji and moved 37 others between years. The full diff, how the Jōyō list accepts 叱 and 頬, the name-kanji list, why JLPT kanji lists are unofficial, and how many of the 1,026 Chinese readers already write the same way.

3 Oct 2026 · 5 min read
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