视频库
由 What2Know 精选并审核的视频、频道和播放列表，按主题整理。
🔒 只有点击后才会加载 YouTube。🌐 视频及其说明目前为英文。
Beekeeping South Australia – Mating Nuc Inspection
An inspection of working mating nucs in South Australian conditions.
推荐理由
Useful for seeing how small mating units are assessed in practice, including colony strength, queen status and day-to-day handling.
Benny Beekeeper
Practical Australian beekeeping, including hands-on work with mating nucs and inventive small-hive solutions.
推荐理由
Clear, practical demonstrations that reward close watching, especially for mating nucs and resourceful equipment ideas.
Cell Builder Follow Up
A practical follow-up showing the development and assessment of a queen-cell builder.
推荐理由
The follow-up format is valuable because it shows outcomes rather than only setup, helping viewers connect management decisions with results.
Engineering Hydrology: Floods, Rainfall and Infrastructure
Practical Engineering explains how engineers understand rainfall, runoff, flooding and often-overlooked urban infrastructure.
推荐理由
A strong introduction to hydrology because it connects statistics and risk to physical infrastructure visible in everyday surroundings.
Grafting Experiment – Beekeeping South Australia
A hands-on grafting experiment focused on queen rearing in South Australia.
推荐理由
A detailed, experience-led look at grafting technique and the realities of evaluating a queen-rearing attempt.
Homemade Mating Nuc: Discussion and Measurements
Benny Beekeeper walks through a homemade mating nuc, its measurements and the practical choices behind the design.
推荐理由
A useful deep dive into dimensions, construction and practical trade-offs. It is especially valuable for viewers interested in small mating units and resourceful equipment design.
How To Ruin Your Electric Car’s Battery – NMC Edition
Engineering Explained examines the mechanisms behind NMC battery degradation and practical ways to slow it.
推荐理由
It connects charging habits, temperature and state of charge to the underlying battery chemistry, with research references rather than rules of thumb alone.
Is Fast Charging Bad for Your Electric Car’s Battery?
A practical and evidence-led examination of how rapid charging affects electric-car battery ageing.
推荐理由
It separates measurable degradation mechanisms from exaggerated claims and explains when frequent fast charging is most likely to matter.
Why I’m Pruning My Fruit Trees at the ‘Wrong’ Time
Epic Gardening demonstrates summer pruning on citrus and stone-fruit trees.
推荐理由
It shows that pruning advice depends on species, climate and objective, while providing clear examples of cuts to make and avoid.