Positive ions are cations and are typically metals like copper or sodium. What elements are positive ions? Positive ions are typically metals or act like metals. Many common materials contain these ions. Mercury is found in thermometers, for instance, and … Continue reading →

Bullet dodging, Scientific American reports, is one such make-believe ability invented by Hollywood. Regardless of your speed and finesse, no human can dodge a bullet at close range. The bullet is simply traveling too fast. Even the slowest handguns shoot … Continue reading →

Positively charged ions are called cations; negatively charged ions, anions. Why are negative ions called negative? The atom then becomes an air ion. The atom becomes a positive ion if electrons are displaced from the atom. But it becomes a … Continue reading →

Solar Stocks with the Most Momentum Price ($) Market Cap ($B) GCL-Poly Energy Holdings Ltd. (GCPEF) 0.33 8.1 Enphase Energy Inc. (ENPH) 202.32 27.3 Atlantica Sustainable Infrastructure PLC (AY) 36.45 4.1 Is a solar company profitable? A typical return is … Continue reading →

While diamonds don’t lose their sparkle, they do tend to get dirty. Use the following tips to keep your diamonds brilliant and clean: Clean your ring regularly. The best way to make sure your diamond is nice and shiny is … Continue reading →

In industrial or substation applications mainly three types of batteries are used namely: Vented / Flooded Lead Acid batteries. Sealed maintenance free batteries/Valve Regulated Lead Acid. Nickel Cadmium (Ni-cd) batteries. Do substations have batteries? Typically, there are either one or … Continue reading →

While aluminum does increase in strength in colder environments, it is generally more prone to dents and scratches than steel. Steel is less likely to warp or bend from weight, force, or heat. These resistant properties make it one of … Continue reading →

sedimentary rocks. Most deposits of iron ore in the world are found in rocks known as banded iron formations (BIFs). These are sedimentary rocks that have alternating layers of iron-rich minerals and a fine-grained silica rock called chert. Many of … Continue reading →

Diamonds can chip or fracture from hard impact, especially in areas where the carbon atoms are not tightly bonded. These areas, called cleavage planes, are the major source of damage to diamonds (figure 2). How can you tell if a … Continue reading →

There are a few disadvantages in using aluminum cookware, Firstly, aluminum is a very soft metal and it is really not that durable compared to cookware that is made of stainless steel. Secondly, studies have found that people who use … Continue reading →

All smartphones use the same rare-earth metals. What rare-earth metals are used in smartphones? Neodymium, dysprosium, praseodymium, terbium, gadolinium and lanthanum are found inside displays and other electronic components of smartphones. These are further re-purposed in making components for cars, … Continue reading →

The Excalibur was made by an Avalonian elf. Later the sword was stolen by his sister and it was the time when the scabbard (sword coverage) was lost. In the battle of Camlann, Arthur was hurt, and he told Bedwyr … Continue reading →

A magnet motor or magnetic motor is a type of perpetual motion machine, which is intended to generate a rotation by means of permanent magnets in stator and rotor without external energy supply. Such a motor is theoretically as well … Continue reading →

Best universities to study quantity surveying University of Portsmouth. Ulster University. London South Bank University. Massey University. University of the West of England – UWE Bristol. Which university is best for quantity surveying in UK? What are the top quantity … Continue reading →

Full voltage is 28.7 volts on a 24 volt system. What should a 24v system be charging at? 24 volt system should charge at about 28.0 to 28.5 volts. At what voltage is a 24 volt battery considered dead? 2) … Continue reading →