Enthalpy of Vaporization

The vital ingredients for life on Earth may have been delivered by meteorites from larger bodies called "planetesimals" in the early solar system. The...

Hydrogels inevitably undergo dehydration, structural collapse, and shrinkage deformation due to the uninterrupted evaporation in the atmosphere, thereby losing their flexibility, slipperyness, and manufacturing precision.

A depolymerization method is described that uses electrified spatiotemporal heating to selectively generate monomers from the commodity plastics polypropylene and poly(ethylene terephthalate), allowing control over the pyrolysis of plastic waste and reducing the formation of side products.

Winter is coming to an end; the last nights of below zero temperatures are here. In the morning, one still spots the occasional icicle on a gutter or car bumper. When you look at these icicles carefully, you may notice that they show a characteristic pattern of ripples—always around one centimeter wide. What causes these ripples? Using an icicle machine of their own design, physicists and chemists from the…

A challenge in materials design is that in both natural and humanmade materials, volume sometimes decreases, or increases, with increasing temperature. While there are mechanical explanations for this phenomenon for some specific materials, a general understanding of why this sometimes happens remains lacking.

Yocan Pillar, as the first product launched by yocan in 2023, is the world's first E-rig with TGT heating technology. Yocan Pillar TGT coil combines ceramic donut and quartz XTAL rod.

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Do we have enough fuel to get to our destination? This is probably one of the first questions that comes to mind whenever your family gets ready to embark on a road trip. If the trip is long, you will need to visit gas stations along your route to refuel during your travel.

Water is one of the most abundant substances on Earth and partakes in countless biological, chemical, and ecological processes. Thus, understanding its behavior and properties is essential in a wide variety of scientific and applied fields. To do so, researchers have developed various water models to reproduce the behavior of bulk water in molecular simulations.

The triple point of water is the unique combination of temperature and pressure at which the solid phase, liquid phase, and gaseous phase can all coexist in thermodynamic equilibrium.

The frothy foam on top of beer is produced by bubbles of gas, predominantly carbon dioxide, rising to the surface. The chemical components that produce the head are wort protein, yeast, and hop res...

We have simulated pure liquid butane, methanol and hydrated alanine polypeptide with the Monte Carlo technique using three kinds of random number generators - the standard Linear Congruential Generator (LCG), a modification of the LCG with additional ...

Enhance your home's comfort with the SwitchBot Smart Evaporative Humidifier. Includes high efficiency, automation, and Matter (HomeKit).

EVs catch fire far less often than gas-powered cars, but firefighters still need to adapt.

Article URL: https://en.wikipedia.org/wiki/Boiling_liquid_expanding_vapor_explosion Comments URL: https://news.ycombinator.com/item?id=33605752 Points: 1 # Comments: 0

The United Nations' most recent Intergovernmental Panel on Climate Change report paints a bleak picture for the world's water supply: Of the 7.8 billion people on Earth, about 4 billion do not have access to sufficiently clean water for at least a month every year. While several water purification schemes have been proposed, they consistently fail at some critical point—typically, they are not stable, big or hardy…

New EPA regulations require 2021 MY and later vehicles to use a refrigerant other than R134a.

Article URL: http://rexresearch.com/yunick/yunick.htm Comments URL: https://news.ycombinator.com/item?id=32813754 Points: 1 # Comments: 1

The key to big power is optimizing the three pillars of internal combustion: fuel, air, and spark.