Archive for May 17, 2018

When Log Tables aren’t Log Tables

Posted in Education, mathematics, Maynooth with tags , , , , , on May 17, 2018 by telescoper

Every now and then – actually more frequently than that – I reveal myself in Ireland as an ignorant foreigner. The other day some students were going through a past examination paper (from 2014) and I was surprised to see that the front cover (above) mentioned  `log tables’.

Now I’m old enough to remember using tables of logarithms (and other mathematical tables  of such things as square roots and trigonometric functions, in the form of lists of numbers) extensively at school. These were provided in this book of four-figure tables (which can now buy for 1p on Amazon, plus p&p).

As a historical note I’ll point out that I was in the first year at my school that progressed to calculators rather than slide rules (in the third year) so I was never taught how to use the former. My set of four-figure tables which was so heavily used that it was falling to bits anyway, never got much use after that and I threw it out when I went to university despite the fact that I’m a notorious hoarder.

Anyway, assuming that the mention of `log tables’ was a relic of many years past, I said to the group of students going through the old examination paper that it seemed somewhat anachronistic. I was promptly corrected, and told that `log tables’ are in regular use in schools and colleges throughout Ireland, but that the term is a shorthand for a booklet containing a general collection of mathematical formulae, scientific data and other bits of stuff that might come in useful to students; for an example appropriate to the Irish Leaving Certificate, see here. One thing that they don’t contain is a table of logarithms…

Students in Physics & Astronomy at Cardiff University are also given a formula booklet for use during examinations. I don’t remember having access to such a thing as an undergraduate, but I don’t object to it. It seems to me that an examination shouldn’t be a memory test, and giving students the basic formulae as a starting point if anything allows the examiner to concentrate on testing what matters much more, i.e. the ability to formulate and solve a problem. The greatest challenge of science education at University level is, in my opinion, convincing students that their brain is much more than a memory device…


International Day Against Homophobia, Transphobia & Biphobia

Posted in History, LGBT with tags , , , , on May 17, 2018 by telescoper

Today is May 17th, which means that it is International Day Against Homophobia, Transphobia and Biphobia. If you’re wondering why May 17th was chosen, it’s to commemorate May 17th 1990, which is when the World Health Organisation removed homosexuality from its list of “mental illnesses”.

Please remember at although attitudes in the UK are much more enlightened than they were only a few years ago, homophobic violence still happens with distressing frequency and in over 70 countries around the world being gay is still a criminal offence. Moreover, the rights we have won over the past 50 years could so easily be lost.


The theme for this year is “Alliances for Solidarity” so, even if you don’t identify yourself as LGBT+, then this should still be an important day for you. Here, for example, is a handy guide produced by Pride in STEM on how to be an ally: