In tandem

Still need a gift? 🎄

Get the book. 135 sketches explaining the world

Means one in front of another, as opposed to side-by-side. It comes from a tandem harness with two horses pulling with one in front of the other. So technically no matter how many people you put on a bike, if they are in a straight line, they are still in tandem. As opposed to a bike where you sit side-by-side, also known as a sociable.

I had to check this one out as on Friday I’m doing a somewhat crazy cycle on a home-made 6-man bike (all sitting in tandem) from London to Amsterdam for a great cause - KEEN London who provide one-to-one sports for children with special needs. Any donation you can make will make a huge difference to a small organisation. With just one day left, please donate here if you can

Published 24 Sep 2014

A weekly sketch by email

Learn something new in a sketch each Sunday

Get the book!
Big Ideas Little Pictures

Prefer to listen?
Try the podcast

Sketchplanations is ad-free
thanks to supporters like you.See more on Patreon

Keep exploring

The haversine formula

The beard cycle

The magic of open-air kitchens for Asian street food shown calling out each aspect that makes it such an ingenious set up

The street food open-air kitchen

What's the difference between Great Britain and the United Kingdom - explained in a sketch with maps

Great Britain and the United Kingdom: What’s the difference?

Me or I

VUCA

It might seem straightforward to pull out a map and measure the distance between two distant points, however, the larger the distance the bigger the distortion caused by traveling on the curved surface of the Earth as opposed to flat 2D space. So while the distance you measure to your neighbouring town won't be too bad, if you're measuring between London and Rio the curvature of the Earth will make a big difference to the distance that you'll travel. To help figure out the correct distance there's the haversine formula. The haversine formula allows you to calculate the shortest distance between two points on a sphere using their latitudes and longitudes — this will be the arc between them on the great circle that includes both points. A great circle is a circle on a sphere with the same centre as the sphere, like the Equator. The haversine formula isn't perfect in practice, as Earth isn't a perfect sphere — see the 3 tallest mountains. It was invented around two hundred years ago, together with tables to speed any calculations, to help sailors navigate. Also see, the Mercator projection …It might seem straightforward to pull out a map and measure the distance between two distant points, however, the larger the distance the bigger the distortion caused by traveling on the curved surface of the Earth as opposed to flat 2D space. So while the distance you measure to your neighbouring town won't be too bad, if you're measuring between London and Rio the curvature of the Earth will make a big difference to the distance that you'll travel. To help figure out the correct distance there's the haversine formula. The haversine formula allows you to calculate the shortest distance between two points on a sphere using their latitudes and longitudes — this will be the arc between them on the great circle that includes both points. A great circle is a circle on a sphere with the same centre as the sphere, like the Equator. The haversine formula isn't perfect in practice, as Earth isn't a perfect sphere — see the 3 tallest mountains. It was invented around two hundred years ago, together with tables to speed any calculations, to help sailors navigate. Also see, the Mercator projection

Newer

RRandom

Older