Energy & Green Tech
Plant-covered roofs have become a regular sight in Portland, Oregon. The city is a leader in incorporating green infrastructure for stormwater management, including free street trees, rebates for small residential housing ...
May 4, 2022
0
348
Engineering
A new approach uses aerial imaging to generate 3D models of cities and regions with advanced precision, enabling urban planners to incorporate full-scale designs of all types of architectural and urban structures.
Dec 13, 2022
0
144
Energy & Green Tech
The prickly pear cactus is such a powerful symbol in Mexico that they put it smack in the middle of the national flag.
Aug 17, 2017
1
445
Computer Sciences
As demonstrated by breakthroughs in various fields of artificial intelligence (AI), such as image processing, smart health care, self-driving vehicles and smart cities, this is undoubtedly the golden period of deep learning. ...
Aug 30, 2022
0
95
Hardware
Amsterdam is one of the most bike-friendly major cities in the world. That also means the city is a happy hunting ground for thieves, who steal tens of thousands of bikes per year—a substantial chunk of the estimated 850,000 ...
Feb 15, 2023
0
47
Engineering
Alphabet (Google) subsidiary Wing has become the first company in the United States to deliver packages by drone.
Oct 19, 2019
0
879
Computer Sciences
Over the past few decades, surveillance cameras, also known as closed-circuit television (CCTV) cameras, have become widely used by governments, law enforcement officers and private citizens to monitor public spaces, prevent ...
Energy & Green Tech
Trees are one of the best things we have to clean the Earth's air, but they have certain drawbacks: they need time and space to grow.
Aug 15, 2019
1
694
Computer Sciences
With a growing number of devices connected to the internet and countless people sharing their live experiences online, a huge amount of useful data is being generated every minute. The analysis of this data could improve ...
Engineering
A team of urban planners and information scientists at Tsinghua University in China has found that an AI-based urban planning system was able to outperform human experts in creating urban planning designs. In their study, ...
A city is a relatively large and permanent settlement, particularly a large urban settlement. Although there are no agreed on technical definitions distinguishing a city from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law — for example an article of incorporation approved by the local cognizant (state) legislature separates towns from city government forms, rights, duties and privileges in Massachusetts — similar distinctions are made across the world, particularly in former colonies of the United Kingdom. Historically, in Europe, a city was understood to be an urban settlement with a cathedral; in later usages, especially in the United Kingdom and parts of Commonwealth of Nations, a city was a settlement with a royal charter.
Cities generally have advanced systems for sanitation, utilities, land usage, housing, and transportation and more. This proximity greatly facilitates interaction between people and businesses, benefiting both parties in the process.
A big city, or metropolis, may have suburbs and regions. Such cities are usually associated with metropolitan areas and urban sprawl, creating large numbers of business commuters. Once a city sprawls far enough to reach another city, this region can be deemed a conurbation or megalopolis.
This text uses material from Wikipedia, licensed under CC BY-SA
