Tag: Map

In my year and a half at Esri, I’ve learned a great deal. Coming into the GIS world with a math and computer science background, adapting to the geospatial technology world has been a bit challenging. I’ve learned many new things, and in this article, I will share one of the cool tr...

It’s an image that hangs in countless history classrooms (or occupies a slide in teachers’ PowerPoints, at least). The Roman Empire, for some reason always salmon-colored, clearly delineated on a map. The boundaries of the empire look so precise; we see Roman territory and non-Roman terr...

Below is a simplified genetic breakdown of major Pakistani populations using modified Gedmatch-Harappa data. There are similar figures floating around online, but they tend to suffer from a couple of issues. Specifically, inadequate sampling of different Pakistani ethnicities, and lack of comparison...

“Ancestral Indian” represents the original inhabitants of India, who preceded both the Indus Valley Civilization and the Aryan Invasion. It was derived by subtracting East Asian ancestry from an Andamese Islander reference. “Ancient Iranian” represents a hunter-gatherer po...

There has always been something so fascinating about stars: the way they shine, align into constellations, hold so much unknown… Among many things, humans have been interested in mapping out stars since the dawn of time. Star charts have been used primarily for navigation but are also useful ...

In 1937, astrophysicist Fritz Zwicky noticed that the movement of galaxies in the “Coma Cluster” was somewhat strange. The average speed of the galaxies was too high. It was so high that these galaxies should have dispersed in different directions long ago. Zwicky calculated the mass of ...

If you are lucky enough to have lidar (light detection and ranging) equipment on your mobile robot, you can use lidar data to localize the robot (define its pose) and simultaneously map the environment around it. In short, you can perform simultaneous localization and mapping (SLAM). To build a m...

New York City Subway, operated by the Metropolitan Transportation Authority (MTA), is the seventh busiest rapid transit rail system in the world, and the busiest in the US, with over 1.7 billion riders in 2012. Including the Staten Island Railway, the system provides service 24 hours a day...

The logistics industry, particularly long-haul trucking, relies heavily on precise and efficient route planning. Traditional mapping solutions, while foundational, can’t keep pace with dynamic changes such as road constructions and lane closures, leading to delays and increased operational cos...