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Hyphenation: on Most of the time we do not care how large something appears on screen, as long as it is legible. There are fields, though, where the size is the information itself, and 1:1 presentation, for example 10 centimetres in the original and 10 centimetres on screen, is a requirement: …
German Jewish mathematician (1882-1935).
Noether’s theorem is important not only for physics but also for the ontological picture it suggests. If Lagrangian mechanics1 describes the world and the action of a system has the appropriate symmetries, then energy, linear momentum, and angular momentum are not independent primitive entities: they are defined through their relation to time, space, and rotations. This connection makes appealing the idea that what is fundamental is not only individual things but also the structure of their relations, a thought akin to structural realism, though the theorem by itself does not prove it.
Statistics on the course of the COVID-19 pandemic in Greece and a comparison with other countries.
In the comparisons between countries, the figures are expressed as percentages of each country's total population rather than as absolute numbers.
This approach allows more meaningful comparisons, since the absolute numbers of countries with different populations are not directly comparable to one another.
During the 1980s, the traditional occupation of the boatman still survived on some Greek islands. In places without a suitable harbour where scheduled ferries could dock, the ship would remain at anchor offshore and lower its stern ramp. Smaller boats would approach, collect the passengers from the ramp, and carry them ashore.
From personal recollection, I remember this procedure being used at Oia on Santorini, on Therasia, and occasionally on Ikaria. At Oia and Therasia, I remember it being used by the Anemos, a ship owned by the Nomikos shipping family.
In the early years of TCP/IP networking, there was no address space officially reserved for private networks. The familiar private ranges—
10.0.0.0/8172.16.0.0/12192.168.0.0/16—were not introduced until RFC 1597 in March 1994. They were subsequently retained by RFC 1918, which replaced RFC 1597 in February 1996.
Around 1990, an organisation that wanted to build a properly addressed TCP/IP network was expected to obtain an officially assigned IP network number. This applied not only to networks connected to the Internet but also to independent networks using the IP protocol suite.
Kosmemophobia is an intense and persistent aversion or discomfort toward jewelry (hereafter J*). It can appear at the sight, touch, or use of it and, in more pronounced cases, lead to the avoidance of people or places where J* is present. The term comes from the Greek κόσμημα (kósmēma), the word for J*, and φόβος (phóbos, “fear”).
This is not fear in the sense of acrophobia or fear that something bad will happen. For some people, the dominant reaction is intense disgust. It can manifest as:
What makes an argument sound? This note separates two things that are often confused: the truth of the premises and the validity of the reasoning. Using simple examples rewritten with variables, it shows that validity depends only on an argument’s form, and that a single counterexample is enough to prove a form invalid, even when every statement in the original example is true.
A series of (R Markdown) lessons built step by step: first the concept of the derivative as a rate of change, then exponential population growth via a differential equation, and finally the logistic equation when space and resources impose limits. Best read in order.
