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Home › 2020 › September

Month: September 2020

Baking: brownies w/o flour

By Jack Posted on September 29, 2020 Posted in baking No Comments

Self-tutoring about baking: the tutor mentions a lesson he’s learned. I have two teenage sons who like brownies for breakfast. Last night, whipping up some quickly before bed, I thought the recipe came together a little quickly, but was happy …

Baking: brownies w/o flour Read more »

Health: COVID-19: can you get it twice?

By Jack Posted on September 28, 2020 Posted in health No Comments

Self-tutoring about COVID-19: the tutor checks if it’s possible for the same patient to catch it more than once. I’ve heard about the potential to get COVID-19 more than once, so decided to look into it. It seems that COVID-19 …

Health: COVID-19: can you get it twice? Read more »

English: acclimate, acclimatize

By Jack Posted on September 27, 2020 Posted in vocabulary No Comments

Tutoring English, vocabulary is always interesting. The tutor mentions something he noticed. The words acclimate and acclimatize mean the same – that is, to adjust to a new climate or reality. I’ve heard acclimatize often, but acclimate, seldom. Source: Mish, …

English: acclimate, acclimatize Read more »

English: how to pronounce composite

By Jack Posted on September 25, 2020 Posted in english No Comments

Tutoring English, you hear different pronunciations: sometimes a tutor feels the need to check. I’ve always said COMP-o-site. Yet, the other day I heard someone say comp-O-site. Their pronunciation surprised me, so I decided to check its validity. Merriam-Webster surprised …

English: how to pronounce composite Read more »

Math, philosophy: transitivity, part 0

By Jack Posted on September 24, 2020 Posted in philosophy No Comments

Tutoring math, you encounter ideas that manifest in real life. The tutor mentions transitivity. Where and when I took grade 10 math, part of the curriculum was geometric proofs. It was completely different from the rest of the course: no …

Math, philosophy: transitivity, part 0 Read more »

Math: Pythagorean triples and Fermat’s Last Theorem

By Jack Posted on September 23, 2020 Posted in number theory No Comments

Tutoring math, ideas are always important. The tutor mentions Fermat’s Last Theorem. A Pythagorean triple is a set of three integers that satisfy a2+b2=c2 There are infinite Pythagorean triples. However, there are no corresponding sets of integers for higher n: …

Math: Pythagorean triples and Fermat’s Last Theorem Read more »

Computer science: arity

By Jack Posted on September 22, 2020 Posted in computer science No Comments

Self-tutoring about computer science: the tutor mentions the term arity. arity: the number of inputs a function needs when called. Source: definitions.net

Astronomy: can you see the Southern Cross from the northern hemisphere?

By Jack Posted on September 21, 2020 Posted in astronomy No Comments

Self-tutoring about astronomy: the tutor mentions an interesting fact about the Southern Cross. Apparently, from inside the tropics of the northern hemisphere, the Southern Cross can be seen, low in the sky, during winter and spring. Source: www.constellation-guide.com

Computer science: what is serialization?

By Jack Posted on September 20, 2020 Posted in computer science No Comments

Self-tutoring about computer science: the tutor mentions the concept of serialization. Serialization means producing a string of characters (or perhaps just 0s and 1s) that can be written to a file, so preserved against power loss. That string of characters …

Computer science: what is serialization? Read more »

Biology: Anabolic steroids, part 0: addictive?

By Jack Posted on September 19, 2020 Posted in biology No Comments

Self-tutoring about drug consumption: the tutor mentions anabolic steroids. I overheard that someone was “addicted to steroids.” “But can that be?” I wondered to myself. “I’ve never heard that steroids are physically addictive.” I decided to look further. My reading …

Biology: Anabolic steroids, part 0: addictive? Read more »

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