However, under direct selling, the profits of the manufacturer show an “inverted U” trend with the increase in the market share of green consumers. In addition, under certain conditions, the direct selling channels opened by the manufacturer are not necessarily to sell green products, but to ...
The best of National Geographic delivered to your inbox Sign up for more inspiring photos, stories, and special offers from National Geographic.Sign Up Legal Terms of Use Privacy Policy Interest-Based Ads Our Sites Nat Geo Home Attend a Live Event Book a Trip Buy Maps Inspire Your Kids Shop...
HowStuffWorks Science Physical Science Optics How Telescopes WorkBy: Craig Freudenrich, Ph.D. Space Exploration Image Gallery Telescopes come in all shapes and sizes, from a little plastic tube you buy at a toy store for $2, to the Hubble Space Telescope, which weighs several tons. See more...
Optics and photonics This article is cited by The impact of digital healthcare and teledentistry on dentistry in the 21st Century: a survey of Hungarian dentists Orsolya Németh Eszter Uhrin Zsuzsa Győrffy BMC Oral Health(2023) Going beyond being there to bring astronomy to the world ...
In the early 1800s, scientists were exploring concepts of light and optics, while improving technologies also allowed the middle classes to devote more time and resources to leisure activities. Devices known as philosophical toys became a form of amusement that did double duty by sharing scientific...
OpenAI o1 is a new series of models from OpenAI excelling in complex reasoning tasks, using chain-of-thought reasoning to outperform GPT-4o in areas like math, coding, and science.
How to Apologise: We all are mostly bad at apologising. Learn how to give an honest apology and mend your friendships in this article.
The DNS points the request in the right direction. Once the target server receives the request, it can send a response back to your computer. The data might travel a completely different path to get back to you. This flexible approach to data transfer is part of what makes the Internet ...
Get inspiration for building your own simulation apps with COMSOL Multiphysics® and get tips on how to use the Application Builder. Browse the COMSOL Blog.
HowStuffWorks Science Physical Science Optics How Telescopes WorkBy: Craig Freudenrich, Ph.D. Space Exploration Image Gallery Telescopes come in all shapes and sizes, from a little plastic tube you buy at a toy store for $2, to the Hubble Space Telescope, which weighs several tons. See more...