主题： household
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堆肥温度记录法：固定测温点、固定深度、堆旁环境温度，并将每次翻堆记为一个事件
一种针对花园堆肥堆或堆肥箱的观测方案建议：按固定时间表，用长杆温度计在标记好的测温点、以规定深度读数，同时在同一时刻记录堆体旁的环境温度，并将每次加料、翻堆或浇水都作为一行事件记录下来，这样便能将堆体温度的上升、平台期和下降与对它做过的操作对照起来看；本文不主张任何目标温度或结果。
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记录家用温度计在冰水浴中的读数：按仪器建立偏差日志
这是一份仅用于记录的建议流程，依照 NIST 对冰的熔点的描述（用蒸馏水制成的碎冰、从上到下均为冰水混合物、规定的浸入深度）来记录家中每支温度计在名义 0 °C 时的读数，并附上日期、制备细节以及读数稳定所需的时间；它为每支仪器保留一份偏差历史记录，但不涉及如何校正仪器，也不涉及食品用途方面的指导。
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家庭发芽对比实验应如何设计，才能让两个家庭的结果具有可比性？
开放问题：实验室依照国际种子检验协会（ISTA）的《国际种子检验规程》检验种子，但家庭若想比较两批种子或两个窗台的发芽情况，却没有共通的方案可循；怎样的样本量、计数规则、持续时间和条件记录，才能让这类家庭对比既有参考价值，又能在不同家庭之间进行比较？
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Which household records fix the start and end of a power outage after the fact, and how far have they disagreed?
Open question: after a power cut a household has several clocks of the event, such as the utility's notice, a UPS log, a router's uptime, a home server's reboot records (the last(1) manual page states that last reboot produces a record of reboot times, and journalctl can list boots with the timestamps of each boot's first and last message), a battery clock that kept time and a mains clock that flashes; which of these have households actually used, how far did they disagree, and which gave the earliest and latest bounds?
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盘点家庭藏书或工具：标识符、位置及核查周期
以普通表格维护家庭藏书或工具清单：为每件物品设置稳定标识符（图书用 ISBN，工具用自编代码），使用带说明的位置代码，以固定词汇记录状态，设置借出字段，并定期巡查，将缺失物品标记出来而非删除；本文不提供估值或保险建议。
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A grocery price log with the unit price computed from the pack: barcode identity, pack quantity, shelf price and promotion flag per observation
A proposed record-only protocol for logging grocery prices in which each observation carries the product's barcode number as its identity, the pack quantity as printed, the shelf price and any promotion or loyalty condition, and a unit price computed by the household in a stated unit, following the definition in EU Directive 98/6/EC of the unit price as the final price per kilogramme, litre, metre, square metre or cubic metre; a changed pack size becomes a new product row, and no purchasing advice or inflation figure is given.
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Household log entries written from memory at the end of the day show more rounded values than entries written at the moment of reading
Hypothesis: when a meter, scale or thermometer reading is written down hours later from memory, the recorded value is more often a round number (ending in 0 or 5, or with fewer decimals) than when it is written at the instrument; a proposed within-household test with alternating days and photographs as the reference, with no claim about which value is closer to the truth.
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Checking a kitchen scale with coins of published mass: a repeatability, range and corner-load record
A proposed record-only protocol for a household scale: use new coins whose nominal mass the issuing mint publishes as reference masses, log readings for single coins and stacks across the scale's range, repeat placements, test the four corners and a timed hold, and keep the sheet per scale; no adjustment and no pass or fail judgement is part of it.
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A watering and growth log for houseplants: fixed measurement points and photographs
A proposed observation log for potted plants: measurement points defined once (height from the pot rim, leaf count above a stated size, largest leaf length), watering recorded by volume or mass, position and events, and a weekly photograph under the same conditions, so that growth can be compared over time and between plants; no care advice is given.
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Two consumer hygrometers in one room disagree less on dew point than on relative humidity
Hypothesis: two consumer temperature-humidity devices placed at different spots in one room report relative humidity values that differ mainly because their temperatures differ, so the dew points computed from each device's own pair agree more closely than the raw RH readings once the fixed inter-device offset is removed; no measurement is reported.
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可重复地测量家庭互联网吞吐量：固定路径与固定时段的流程
一套建议的家庭吞吐量与延迟序列测量流程：固定设备、有线或无线连接路径、测试工具及服务器，连续两周每天在三个固定时段各做三次连续测试，每次记录连接数和家庭活动。RFC 6349 中的带宽时延积及单连接与多连接讨论，可解释工具设置为何会改变结果；本文不对任何运营商作出结论。
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An expense categorisation log as a method: frozen category list, numbered edge-case rules and a re-coding check
A proposed documentation method for household spending records: freeze a category list with definitions before coding, keep one row per transaction with amount, currency, payee as printed and a rule identifier, turn every edge-case decision into a numbered rule, and re-code a blind sample monthly to measure self-agreement; it produces interpretable category totals and gives no financial advice.
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A heating-season log: heating input, indoor temperature and degree days on one timeline
A proposed protocol for one heating season: read the household's heating input (a heat, gas or electricity meter or thermostat runtime) at a fixed time, log indoor temperature and setpoint changes beside it, derive heating degree days from logged daily highs and lows with a stated base, and keep a conditions column so that a month's consumption can be checked against weather and events; no target temperature or saving is asserted.
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按固定时间读取家用电表：一项观察规程
一项拟议规程：在固定时间记录家用电表显示的累计 kWh 读数，同时记录所跟踪的计量寄存器、显示分辨率及家庭情况，使不同日志的每日差值可以比较；只查看显示屏，不声称获得任何用电量数值。
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How comparable are phone light-meter app readings of indoor plant positions between phones and apps?
Open question: phone apps report illuminance in lux for a windowsill or shelf, reading either the ambient light sensor that Android documents most manufacturers use to control screen brightness, or an estimate from the camera; what is known about agreement between two phones at the same spot and time, the effect of orientation and screen glass, and which logging conventions would let two households compare plant positions?
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Logging a consumer PM2.5 sensor: what to record beside each reading and what the number cannot say
A consumer particulate sensor reports an estimate of the mass of particles 2.5 micrometres and smaller; the EPA states that such sensors come with lower accuracy and higher uncertainty than regulatory monitors, describes collocation with reference instruments as an effective way to assess them, and notes that an outdoor correction may not apply indoors and that changing temperature and humidity may affect some sensors. A household log therefore stores the raw value, the averaging interval, placement, indoor events and the nearest official monitor's value with its distance.
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A home weather diary: what a garden or balcony sensor records and why it differs from the official station
A home weather diary is only comparable with other records when the sensor's exposure is written down: the Met Office measures air temperature in a naturally ventilated Stevenson screen 1.25 m above the ground, while a sensor on a wall, under an eave or in sunlight measures its own surroundings; the article describes the diary columns, the exposure description and the home-minus-station difference series.
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A houseplant leaf-condition and pest-sighting log with tagged leaves and fixed photographs
A proposed observation protocol for houseplants: tag three leaves per plant, photograph upper and lower surfaces weekly against the same background, record spots, edge condition, residue, webbing and counted visible insects in a fixed vocabulary, count dropped leaves between visits, and keep identification attempts separate from the observations; no treatment is stated.
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Mass versus volume in cooking: which cup is meant, and how to record the conversion actually used
A cup, tablespoon or teaspoon is a volume whose definition differs between the US customary units listed by NIST and the rounded values used on US nutrition labels, and the mass it holds depends on the ingredient and how it was filled; a household that converts between mass and volume records the definition it used and its own weighed values so that a recipe can be reproduced.
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A parcel delivery time log: order, dispatch, tracking and door timestamps on one row, with the carrier's scan and the observed arrival kept apart
A proposed record-only protocol for logging each parcel's timeline as timestamps in the RFC 3339 Internet Date/Time Format with UTC offsets, taken from the order confirmation, the dispatch notice, the carrier's tracking events and the household's own note of the arrival, with the carrier, service, delivery place and each attempt recorded; the carrier's delivered scan and the observed arrival are separate columns, and no carrier comparison or delivery-time claim is made.
机器可读： JSON