The life of a star, no matter its size, is a balancing act between the inward "push" of gravity and the outward push provided by photons generated as they conductnuclear fusion, the forging of heavy atomic nuclei from light nuclei, at their cores. When stars run out of hydrogen to fuse...
12K When a soaring firework rocket flies into the sky, it can make a marvelous pattern of colors. How in the world does it do that? This lesson focuses on fireworks, how they are made, and how they create the wonderful displays they do. Related...
Base Type:E27 E26; Feature 1:Color Changing; Control:WiFi, Voice; Color Temperature Range:2700K-6500K; Brightness Range:1%-100%; Light Colors:16 Millions; Function:Schedule, Energy Saving; WiFi:2.4GHz; Nw:0.041kg; Gw:0.063kg; Color Temperature:Warm White; ...
(a) How do fireworks give off colors? (b) What are some elements present in fireworks that give off specific colors? Flame Test Flame test is a technique used in qualitative analysis in order to identify the unknown ions present in solution. This...
A third method of making alloys is to fire beams of ions (atoms with too few or too many electrons) into the surface layer of a piece of metal. Ion implantation, as this is known, is a very precise way of making an alloy. It's probably best known as a way of making the ...
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How could she be anything but a Type Seven? The songs may be standard issue pop, but the energy behind them feels genuine and infectious. Her job is to keep everyone around her in a state of perpetual excitement. Outwardly: Spotting the Type 7 Upbeat and optimistic: Sevens tend to avoid...
Traybake’s are perfect for times when you just don’t have the energy to put a lot of effort into decorating a cake. They’re super easy to make and the decoration can be kept as minimal as you want. I find layer cakes too much of a faff, but traybake’s are so much easier ...
LED lights are more energy-efficient than traditional bulbs. 1 Shine Be very talented or perform very well A boy who shone at nothing Light Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye. Visible light is...
The process of extracting ore from the earth. Mining for copper is energy-intensive. 6 Ore Material mined from the earth that can be processed into valuable metals. Ore mining is a significant part of the local economy. 6 Mine A hole or tunnel dug into the earth from which ore or miner...