In chemistry, atoms and molecules are described by the arrangement of their chemical bonds. There are five distinct categories of bonding: electrostatic, dipole, land, non-polar and amphoteric. Bond structure is important because it determines how different chemicals react when put together. The stre...
When they're in the nematic phase, liquid crystals are a bit like a liquid: their molecules can move around and shuffle past one another, but they all point in broadly the same direction. They're a bit like matches in a matchbox: you can shake them and move them about but they all ...
The molecules in hot water move faster than those in cold water. Hot water molecules bounce around and leave gaps. This makes hot water slightly less dense than cold water. So when you put the cold water on the bottom, the denser cold water stays there....
It's what we call thelatent heat of vaporizationof water: it's the energy you have to supply to move the molecules in the water far enough apart to turn the boiling hot liquid into a hot gas. So why does steam hurt more? If 100°C boiling water hits your body, it cools down and...
How do air molecules move when a sound wave passes by? How do electromagnetic waves transfer energy? Describe what happens when a wave transfers energy. How do power interference waves work? How are primary waves and secondary waves different? How do longitudinal waves transport energy? Where do...
Screens with IPS technology use liquid crystal molecules that align parallel to the screen surface, allowing for wider viewing angles and better color accuracy. IPS panels provide consistent colors and maintain image quality even when viewed from different angles, making them suitable for professional ...
Vapour is a substance that is a combination of gaseous and liquid phase in ordinary conditions. Gas is a substance that has a single thermodynamic state in ordinary conditions. What is the effect of pressure on gases? The overall result is a decrease in the number of gas molecules in the ...
Why is there a greater amount of heat in the air surrounding a liquid, even if the temperature of the environment is the same as the temperature of the liquid? Why is the mesosphere colder than the troposphere? Why do denser objects sink?
If you swapped your eyes for a couple of the world's most powerful microscopes, you'd be able to see things 100 million times smaller: bacteria, viruses, molecules—even the atoms in crystals would be clearly visible to you!Ordinary optical microscopes (light-based microscopes), like the ...
Liquid crystals are special compounds containing molecules whose orientation can be changed by applying a voltage. This change in orientation changes the amount of light that can pass through the liquid crystal. Due to this change, the brightness of each sub-pixel can be changed, and the monitor...