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Author: Jack

Mechanics: o-rings, gaskets and washers, part 1

By Jack Posted on July 4, 2025 Posted in mechanics

Self-tutoring about locations meant to be sealed: the tutor mentions o-rings, gaskets, and washers. While washers have numerous potential uses, such as spreading the force of a tight fastener across more material or absorbing vibration, some do work to provide …

Mechanics: o-rings, gaskets and washers, part 1 Read more »

Health: can caffeine promote DNA repair?

By Jack Posted on July 2, 2025 Posted in health Tagged with AMPK, caffeine, DNA

Self-tutoring about health: the tutor mentions a discovery about caffeine. My readers likely know that I’m a coffee drinker. Therefore, it was with pleasure that I read this article from the Jerusalem Post suggesting that caffeine can promote DNA repair …

Health: can caffeine promote DNA repair? Read more »

Bird watching: the junco without tail feathers, part 2

By Jack Posted on July 1, 2025 Posted in bird watching Tagged with Oregon dark-eyed junco, tail feathers

Self-tutoring about birds: the tutor continues about a junco he saw about a month ago. In my post on June 3, I mention noticing a junco lacking noticeable tail feathers. Said bird was with another, apparently similarly able. To be …

Bird watching: the junco without tail feathers, part 2 Read more »

Email: gmail: search, part1

By Jack Posted on June 30, 2025 Posted in email Tagged with gmail, searching email

Self-tutoring about gmail: the tutor mentions some techniques to find emails. In gmail, some simple yet powerful search techniques are available. For instance, imagine a person wants to find all emails from given_sender between October 21, 2022 and October 24, …

Email: gmail: search, part1 Read more »

Food: homemade hummus

By Jack Posted on June 29, 2025 Posted in food Tagged with low-fat vegan

Self-tutoring about homemade food: the tutor mentions hummus. Yesterday I made hummus for a low-fat vegan diet. Therefore, I couldn’t use olive oil or tahini. I started mashing up chick peas with a potato masher, then added some lemon juice, …

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Botany: stonecrop

By Jack Posted on June 28, 2025 Posted in botany Tagged with plant identification

Self-tutoring about plant identification: the tutor mentions stonecrop. Due to unusual (yet pleasant enough) circumstances, I’ve been walking around town lately. Not that I mind walking; I just usually don’t venture through those places. Yet, I used to, around 25-30 …

Botany: stonecrop Read more »

Email: reindexing

By Jack Posted on June 27, 2025 Posted in email, email programs Tagged with finding lost emails

Self-tutoring about email: the tutor mentions a solution he found. Like (one might assume) many people, I have numerous email accounts that use numerous email clients. About a year ago, one started not being able to find certain emails in …

Email: reindexing Read more »

UK: Reform’s Britannia Card idea, part 1

By Jack Posted on June 26, 2025 Posted in UK Tagged with foreign taxes, taxes

Self-tutoring about politics in the UK: the tutor mentions an interesting idea from Reform UK. The following is my understanding, in plain terms, of the Britannia Card and the situation behind it. The UK attracts many high earners who, for …

UK: Reform’s Britannia Card idea, part 1 Read more »

Diet: caloric density, part 1

By Jack Posted on June 25, 2025 Posted in diet Tagged with calories, weight loss

Self-tutoring about calories in food: the tutor mentions a comparison. Apparently orange, at 47 calories per 100g, has less caloric density than apple, at 52 calories per 100g. Interesting, eh? Source: fatsecret.com fatsecret.com

Gardening: lamb’s ear

By Jack Posted on June 24, 2025 Posted in gardening Tagged with flowers

Self-tutoring about flowering plants: the tutor mentions lamb’s ear. Lamb’s ear lived on the property when we arrived, over 20 years ago. It spreads easily, but seems happy to live on the margins, so never interferes with anything. Apparently, it’s …

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