It is shown that solid helium near the solidification curve at temperature T ≈ 1.3 K has the properties of a "jelly-like" substance with viscosity 10 2 –10 4 P. In the same conditions the surface of rotating solid helium (at a rate of linear crystal growth u < 10 3 cm/sec) ...
How to make solid helium? Phase diagrams: A phase diagram is a representation of the different physical states of a substance when it is subjected to various conditions of temperature and pressure. A phase diagram shows the regions where a substance is in a particular phase such as solid, liq...
“A reasonable criticism of our effort may be ‘Why pursue cold fusion when it has not been proven to exist?’. One response is that evaluating cold fusion led our programme to study materials and phenomena that we otherwise might not have considered. We set out looking for cold fusion, an...
When the solid rock changes form to a more liquid rock material, it becomes less dense than the surrounding solid rock. Because of this difference in density, the magma pushes upward with great force (for the same reason the helium in a balloon pushes up through the denser surrounding air ...
When the solid rock changes form to a more liquid rock material, it becomes less dense than the surrounding solid rock. Because of this difference in density, the magma pushes upward with great force (for the same reason the helium in a balloon pushes up through the denser surrounding air ...
For this reason, hot air exerts greater air pressure per particle than cold air, so you don't need as many air particles to build to the same pressure level. So a hot air balloon rises because it is filled with hot, less dense air and is surrounded by colder, more dense air. Balloon...
Most substances contract, or shrink, in volume as they get cold. Water only contracts until it is lowered to 39 degrees; at colder temperatures, it begins to expand. As the water gets colder, its molecules slow down and arrange themselves such that gaps exist between groups of molecules. As...
Fire or light gouging is a method for utilizing light to discard metal. There are different real backings to utilize this technique, not the least of which is the amount more settled than a processor it is. Fire gouging is, in like the way, a lot speedier than cold chipping at welds....
How is alum used in water treatment plants? Why does water evaporate at all? Describe the chemistry behind how an instant cold pack works. How is the crystallization of a solid different from the precipitation of a solid? Why does water have high entropy? How to make solid helium? Discuss...
Choosing the right materials is an important part of sewing a weighted blanket.This post on what weighted blankets are made out ofhas everything you need to know, and I highly recommend reading it before you start sewing. These are the basics you need; you can alsobuy weighted blanket kits...