VIN. The input voltage to the Arduino board when it’s using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage … Continue reading →

Memory only uses between 1.20 to 1.5v. What uses 5V rail? Anyway the 5V rail supplies power to many things like: USB, PS/2 (mouse & kbd), PCI headers and, very important, to all the storage devices (HDU, floppy, CD/DVD). What … Continue reading →

A big difference between AA and AAA batteries lies in their size. The higher the alphabet, the smaller is the battery. That means AAA batteries are smaller than AA batteries. Are AA or AAA batteries bigger? AAA batteries are smaller … Continue reading →

Drug transporters can be saturated if the substrate (drug) levels are sufficiently high. Once the transporter is saturated, no additional drug can be absorbed from the GI tract, even if it is available for transport. Similar to the example of … Continue reading →

How does a test meter work? The multimeter tests continuity by sending a little current through one probe, and checking whether the other probe receives it. If the probes are connected—either by a continuous circuit, or by touching each other … Continue reading →

Generally these batteries would then last for over 40 hours on a single charge. However recently I have found aftermarket batteries are not providing any more than 25 hours. What does 650mAh battery mean? milli Ampere hour650mAh v 900 mAh … Continue reading →

And last year, Tesla filed a motion to dismiss a lawsuit in U.S. federal court in Washington, D.C., charging that the company, as well as Apple, Dell, and other tech giants, were aiding and abetting child labor in the cobalt … Continue reading →

Gross profit is the profit a company makes after deducting the costs associated with making and selling its products, or the costs associated with providing its services. Gross profit will appear on a company’s income statement and can be calculated … Continue reading →

F = fraction absorbed (bioavailability) K0 = infusion rate. What does F mean in pharmacokinetics? Bioavailability (F) is defined as the rate and extent to which the active constituent or active moiety of a drug is absorbed from a drug … Continue reading →

Electrolyte plays a key role in transporting the positive lithium ions between the cathode and anode. The most commonly used electrolyte is comprised of lithium salt, such as LiPF6 in an organic solution. What kind of electrolyte is used in … Continue reading →

Lithium is an alkali metal, which means it is not magnetic. When you add a magnetic charge to lithium, it will not make and difference. There is also carbon inside lithium-ion batteries. The carbon is rated in a low-grade magnetic … Continue reading →

The most used semiconductor materials are silicon, germanium, and gallium arsenide. Of the three, germanium was one of the earliest semiconductor materials used. Germanium has four valence electrons, which are electrons located on the outer shell of the atom. What … Continue reading →

Graphene and related materials add value throughout the value chain, from enhancing and enabling new materials to improving individual components and, eventually, end products. The most immediate applications of graphene, such as composites, inks and coatings are already commercially available, … Continue reading →

It’s important to take lithium as recommended by your doctor. There are 2 different types of lithium – lithium carbonate and lithium citrate. It’s important not to change to a different type unless your doctor has recommended it. This is … Continue reading →