## Mercator's Magic Map

One of the most profound and influential advancements in cartography is sorely misunderstood today. Let's take a look at when it happened, what it does and why it is still incredibly important.

## The Address Dilemma

Have you ever encountered a misplaced marker? Geocoding may be the culprit. This post takes a look at the ubiquitous and erratic way we humans describe locations.

## On the Flip Side

Have you ever wondered who or what is on the other side of the planet? This post takes a look at what is straight down and upside down. It also ponders the Earth's strange antipodal balance.

## The Shadow Knows

The size of the Earth was calculated with surprising accuracy by Eratosthenes in the second century BC. His method was both brilliant and simple. This article describes a classroom experiment for repeating his results.

## The Fly on the Wall

A long line of brilliant thinkers and mathematicians patiently observed, deduced and calculated a way to render the details of our world onto conveniently flat charts, books and electronic devices. A fly on the wall helped.