What is a hologram and how does it work? Laser beams are split up in order to construct a hologram, causing the light waves that make up the two parts of the beam to travel in similar fashion. It is due to this that the image seems to change. This is also what lends holograms thei...
Zoom lenses in cameras work in a similar way, with multiple lenses that can be moved together or apart by turning them with your fingers or, on automatic cameras, by pressing a motorized control that does the same thing. Zoom lenses that work this way are known as optical zooms. Digital ...
Urban Mobility 5 trends of the future
Finds holes in upstream security assurance practices, such as automated tools, configuration and coding standards, architecture analysis, and other lighter-weight vulnerability assessment activities Locates both known and unknown software flaws and security vulnerabilities, including small ones that by themselv...
How does the size of a transistor affect performance? Over time, as transistors have advanced, they have also become smaller in size, which improves their performance. There are a few reasons why the consensus among industry experts is that smaller transistors mean improved performance. They includ...
In this article, we'll look into how LED light bulbs work, why they're a desirable lighting choice, and some of the pros and cons surrounding them. Let's begin with the basics: How does an LED produce light? Contents LED Light Bulb Basics Advantages of LED Light Bulbs Concerns Abo...
How does hydrophobic down work? Regular down’s biggest weakness is its reaction to excess moisture. Expose down to rain and it will clump, losing its loft and warmth. Hydrophobic down resists this degradation by applying special polymer treatments to the down clusters. This increases the down’...
Last on our list is thin-film PV panels, designed with very fine layers that make the panels flexible. Thin-film panels do not require a frame backing, meaning they are lighter and easier to transport. Thin-film solar panels are the cheapest option on the market and generate less waste. ...
Liquid crystal display (LCD).The LCD is a type of flat-panel display that is much thinner and lighter than the CRT. To generate an image, the LCD uses liquid crystal sandwiched between two panes of polarized glass, with a backlight illuminating the glass. LCDs work by blocking light rather...
If a point on the curve moves up, it becomes a lighter tone; if it moves down, it becomes darker. A straight, 45-degree line indicates no changes to the tonal scale: The original input values exactly match the output values. You may see a tone curve that isn't straight when you ...