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Explaining the world one sketch at a time

Simplifying complex ideas through fun and insightful sketches.

A weekly sketch by email

Learn something new in a sketch each Sunday

Recent sketches

Two people are loving soaking up the low winter rays of sun in a park

Apricity

It's hard to beat the feeling of the warmth of the winter sun on your face. There's a word for it too: apricity. Uplifting, hopeful, calming — even a few short moments to bask in an unexpected, weak but glorious gleam of winter sunlight is wonderful. A brief burst of apricity warms the spirits and your skin. It reminds me of distant warm, long, summer days, and the promise of spring in a few months. If it has been bleak and cold, apricity is that much more welcome. From the UK's position in the Northern hemisphere, with the sun low on the horizon, you can let the sun hit full in your face in the middle of the day without craning your neck or leaning back. It's never too hot to seek shade, and often just the right brightness that facing it dead on with your eyes closed is ideal. Together with the long shadows of winter, the effect can have you swept up with the rays, letting them soak into your skin and transporting you away from the cold under your feet. From the latin aprico, 'to warm in the sun', and in turn aperio, 'lying open', it has been around since at least 1623. It feels to me like we'd benefit from its resurgence.
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An employee is flummoxed by a set of opinions without data about how to proceed on a project

Without data you're just another person with an opinion

Data avoids arguments. So does the willingness to seek out data. If none of us has data to share then we can't help but bring our own personal biases, preferences, and opinions to the table — anyone might be right, but who's to say (often the HiPPO: the Highest Paid Person's Opinion)? It's why I love this quote from W. Edwards Deming: "Without data you're just another person with an opinion." Perhaps you've been in a car with several backseat drivers who all seem to know better than the driver. Or maybe you've been part of a review for a new initiative where everyone has their own views of what will make it succeed. Or a discussion on what's driving some unexpected behaviour. We can't know who's right until we bring some data. It's amazing how even a little data can avoid an "I'm right, you're wrong" situation. And where there isn't data, framing a discussion on how to quickly gather data or experiment to find out which approach may be best so often focuses a team, removing ego and opinions. After all, as Jim Barksdale, former Netscape CEO said: "If we have data, let's look at data. If all we have are opinions, let's go with mine."
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A parent consoling a child and correcting their attribution of winning and losing to the situation and actions not to personal traits

Attribution bias

Attribution bias includes a set of more specific biases where we may attribute behaviour to fixed personality traits or characteristics of a person rather than specific circumstances or actions. For example, a child may be labelled a genius or gifted when they actually had a supportive environment and worked hard, or someone may be labelled a loser rather than recognising specific circumstances that led to some failures. Criticism — one of the four horsemen of relationship apocalypse — can become toxic when it's attributed to someone's personality traits. For example, calling someone 'lazy' rather than sharing how it makes you feel when they don't keep the place tidy. A form of attribution bias may be applied to whole societies via the Destiny Instinct. Specific examples of attribution bias include the fundamental attribution error and self-serving bias.
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When to use advise vs advice, licence vs license, practice or practice explained. Fellow devising a device as a way to illustrate how Devise, Advise, License, and practise (with an s) are all verbs in British English and device, advice, licence and practice (with a c) are all nouns

Advise vs advice and other s and c's

Is it advise or advice? Devise or device? And if you're using British English, license or licence, practise or practice? Verb vs noun Handily, the general practice is to use an 's' for the verb, and a 'c' for the noun. So advise is something you do, and advice is something you give. In American English, there is only license and practice for both verbs and nouns. However, in British English, you would you use license if you were licensing someone and what they received would be a licence — with a 'c'. And in British English, you would practise when you went to practice. Tips to remember - se or -ce Some places suggest thinking of the '-ice' at the end as ice, which is a noun. A reader suggested another way to help me remember it think of: rise, which is clearly a verb, and rice, which is clearly a noun. Whatever works for you. License/licence and practise/practice are homophones Also see: stationary and stationery compliment and complement affect and effect
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The two primary temperature scales of Celsius and Fahrenheit side-by-side calling out water freezing, body temperature and water boiling

Fahrenheit and Celsius

The two most commonly used temperature scales are Celsius and Fahrenheit. The Celsius scale, named after Swedish astronomer Anders Celsius, sets 0C at the freezing point of water and 100C as the boiling point of water at 1 atmosphere of pressure — normal air pressure at sea level. The Fahrenheit scale has 32F as the freezing point of water and 212F as the boiling point. With 180F between freezing and boiling that means each degree Celsius is 1.8 degrees Fahrenheit. Several accounts of the creation of the Fahrenheit scale exist but the general gist is that Daniel Fahrenheit set 0F at the freezing point of a brine mixture, 32F at the freezing point of water, and another point at body temperature around 96F (now 98.6F). He divided up the scale between these points giving a scale with helpful resolution. It's interesting to think that for most of history, there was no comparable way to say how hot or cold something was. Having spent time on both sides of the Atlantic I've tried to get at least somewhat familiar with both of them. To convert between them in my head, at least around most air temperatures, I use a quick approximation. As 32F is 0C, and for each one Celsius you move almost two Fahrenheit, you can roughly go from Fahrenheit to Celsius by subtracting 32 and dividing by 2 (or a little less to be closer). So 50F is approximately 9C (actually 10C), or 86F is approximately 27C (actually 29.4C). It's not perfect, but it's often good enough if you're trying to work out if it'll be hot out. To go from Celsius to Fahrenheit, it's the reverse, times by 2 and add 32. There are also at least two simple anchor points that can help just by swapping the digits around: 82F is near enough 28C 61F is near enough 16C Both scales are now defined relative to the Kelvin scale, which sets the lowest point of 0K at absolute zero, where basically all movement stops. Zero on the Kelvin scale is around -273C. As such, the Kelvin scale, though helpful for scientists, is not very practical for discussing the weather.
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Astronomer watching the light of one star moving away being redshifted and one star moving towards being blueshifted

Redshift

Redshift refers to light being 'shifted' towards the redder end of the spectrum — longer wavelengths — as objects move away from each other. If a light source is moving towards us then light is blueshifted, shifting towards the bluer end of the spectrum, shorter wavelengths. Imagine waving a spring back and forth to create a wave and then starting to run away – the waves would be stretched longer. Because the universe is expanding 🤯 distant galaxies are moving away from us faster than nearer ones — imagine how the chocolate chips in a cookie move away from each other as the cookie bakes and grows in an oven. By comparing the redshift of light seen from distant galaxies with what we would expect to see it's possible to use redshift to determine how far they are away. Redshift is an example of the Doppler effect, or Doppler shift, in action. It's more commonly known by the stretching or compressing of soundwaves as, say, an ambulance moves towards or away from you, or how the sound in front of a moving aircraft eventually can produce a sonic boom.
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