Articles Tagged with mathematics

Why an f-stop?

It’s all the astronomers’ fault

fstopOur photographic consultant is reminded how complicated things are for beginners, no matter how straightforward it all seems to the professionals.

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Applied numerology

Why astronomers are natural translators

thermoOur astronomer offers an apology and an explanation.

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A star by moonlight

How can the Moon affect a star?

miraAs things go in the universe, the Moon is a small thing, insignificant compared to a distant star.  Yet our astronomer found that it can have a definite influence on measures of the latter.

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Thinking in stories

The limits of doing your science in metaphors

the balloon analogyIt’s vital not to confuse an illuminating explanation of science with the science itself.

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Not dangerous enough

Probable perils of new technology

traffic2Using mobile phones, especially smartphones, while driving is dangerous.  Yet our chief consultant concludes it’s not dangerous enough!

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Scientists and doublethink

Using different theories at the same time

shuScientists, especially astronomers, use several incompatible theories in their calculations.  How?  And why?

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When science is an art

The experimentalist’s skill

sextantSome scientists have an unusual skill for extracting precise data from their instruments.  Sometimes this leads others to question their results.

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Learning from a master

The expert may not be the best teacher

lanAs we mentioned last week, our navigator was out of the office teaching a professor how to use his sextant.  Having decades of experience in both the observations and the calculations involved, he certainly has a firm grasp of the subject.  But that’s not always the quality you need in a teacher.

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Brass, glass and verniers

Scientists of yesterday were different

sextantOur astronomer and our navigator are away from headquarters at the moment, showing a Professor of Physics how to use his sextant.  This style of instrument was the mainstay of nineteenth-century astronomy: made of brass and glass, with precise scales engraved on them for careful measurements.  The people who used them had to work in a different way from current astronomers and must have had a different approach to life.

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The unnecessary theory

General Relativity textbookYou will have heard of the detection of gravitational waves, just announced this past week. For once the mass media haven’t over-hyped a scientific discovery: this really is an important find. We’re not going to try to explain the science behind it (there are lots of articles on line and offline that do that). It’s the fact of the 100-year gap between the theoretical prediction and the actual observation that tells us something about the nature of science.

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