404 error page

A 404 error page is a web page that is displayed when a user attempts to access a website that doesn’t exist. The 404 error message is typically displayed as follows: “404 Error: Page not found.” There are a number of reasons why a website may display a 404 error page. For example, the website … Read more


Microfluidics is the study and application of fluid mechanics at the microscale. It involves the control and manipulation of fluids that are constrained to a small, confined space. In order to control these fluids, special microfluidic devices, often called “lab on a chip” devices, are used. These devices are made up of a network of … Read more


A facepalm is the physical gesture of placing one’s hand across one’s face, especially the mouth, in frustration, embarrassment, or incredulity. The gesture is often expressed as the word “facepalm” followed by a descriptive verb, such as “facepalm herself” or “facepalm in disbelief.” The term can also be used as a noun to describe the … Read more