One factor gold has on its side though is that, unlike other non-renewable resources like oil, it can be recycled. So we will never run out of gold, even when we can no longer mine it. A large amount of … Continue reading →

Battery Voltage Voltage refers to the amount of electrical potential your battery holds. The standard automotive battery in today’s vehicles is a 12-volt battery. Each battery has six cells, each with 2.1 volts at full charge. A car battery is … Continue reading →

Remember the voltage increases when batteries are in series, but with batteries in parallel this is not the case. When two or more batteries are placed in parallel, the voltage in the circuit is the same as each individual battery. … Continue reading →

Nominal Cell Voltage – The average voltage a cell outputs when charged. The nominal voltage of a battery depends on the chemical reaction behind it. A lead-acid car battery will output 12V. A lithium coin cell battery will output 3V. … Continue reading →

Definition: Radioactive by-products resulting from fusion, fission, refinement, or processing of radioactive materials. This includes all solid and liquid radioactive wastes. This does not include the processing and storage facilities for such waste. What is meant by nuclear waste in … Continue reading →

The results of this work indicate that the average (range) activity concentration of (210)Po in cigarette tobacco was 16.6 (9.7-22.5) mBq/cigarette. How much polonium is in a cigarette? The polonium isotopes are among the most radiotoxic nuclides to human beings. … Continue reading →

A car battery should not lose it’s charge overnight. It may lose a tenth of a volt or bit more, but not anything really noticable. If you are losing more than that overnight, then you have something that is draining … Continue reading →

In newer installations the two most popular systems are called 4-wire “grounded wye” systems. The low-voltage version is represented by a 120/208-volt system. The high- er-voltage version is a 277/480-volt system. What is low voltage considered? Anything with 50 volts … Continue reading →

The results show that Tide is the best detergent to remove stains. What is the independent variable of detergent? Independent variable: The detergent. Dependent variable: How well are the tough stains removed. Easy way to define: test the scenarios. The … Continue reading →

Graphene, one of the world’s strongest materials, isn’t normally magnetic. But when stacked and twisted, graphene develops a rare form of magnetism, new research finds. Can graphite be magnetic? Scientists agree that pure graphite cannot be ferromagnetic. Each carbon atom … Continue reading →

The calculation is based on the following: The average “membrane potential” for a cell is 70 millivolts OR . 07 volts (this the electrical charge difference between the inside of the cell, separated by the cell membrane, from the charge … Continue reading →

Through the entire circuit, the current is therefore the same at any point. In a parallel circuit a path might split into two, so the incoming current can be split and smaller portions take each path – in total the … Continue reading →

None – a standard lead-acid battery just sitting there doing nothing shouldn’t lose a measurable amount of voltage in the space of 12 hours. Eventually, just sitting unused, it will discharge itself, but that takes years rather than hours. How … Continue reading →

Nanoscale graphene-based materials have also been extensively used for designing targeted and stimuli-responsive drug delivery systems through either external stimulus (such as temperature, light, ultrasound waves, magnetic and electric fields), internal stimulus (such as pH, redox and enzymes) or multi-stimuli- … Continue reading →

Originally Answered: is graphene over-hyped? No. Not at all. All of the hexagonally structured materials, such as fullerenes, graphene and nanotubes (even the latest find, carbyne) are ALL worth the hype. What is the biggest problem with graphene? The only … Continue reading →