If you don't own your keys, you don't own your assets. Remember that sentence and review your recovery account. Seriously, do it right after reading this article. It's crucial for your digital safety.

The images formed by optical (and other imaging) devices can be ‘caught’ and stored in a variety of ways, ranging from the biochemical method using eyes and brain, through the traditional photochemical

Hello, guys. I intentionally didn’t write any articles on physics all these couple of days to fully observe what’s happening on the blockchain. I am very glad all is sorted now and we’ve forked away from

Optical lenses, such as the lenses in a camera viewfinder, a telescope or a microscope, allow us to see the images of a wide range of objects. In these instruments, a lens (or several lenses) takes the

Did you know that two isotherms and two adiabatics (the names given to the changes)can be put together to produce a closed cycle? Actually, this is called a Carnot cycle. In a closed cycle, we finish

When a gas is compressed very rapidly, there is no time for energy to leave the gas by thermal processes and go to the surroundings. But the temperature changes because work is done – temperature increases

By this stage of physics, we will have spent a lot of time learning about properties of materials – conductors have resistance, fluids are viscous, and so on. But at very low temperatures we cannot take

We know from everyday experience that some things need more energy than others to raise their temperatures by the same amount. For instance, it takes more energy to heat water by one kelvin than the same

Like most of my articles, this article was written only after a lot of late nights and numerous cups of coffee – usually ‘instant’ coffee! The instant coffee industry has developed into a multi-million-pound

The flux in the core of a transformer induces currents in the coils at right angles to it. Why doesn’t the flux induce currents in the core itself? After all, the core is made from iron or some similar

In 1831, Michael Faraday discovered electromagnetic induction, which enabled him to transfer electrical power from one circuit to another by varying the magnetic linkage. Faraday’s discovery led to the

In using a flame probe for investigating the potential between two parallel plates, a voltmeter is used to measure the p.d. across the parallel plates. A flame probe is used to measure voltage at points

The spark that jumps across a gap of 5 cm or so in a Van de Graaff generator is the dramatic effect of static electricity. Less conspicuous, but the cause of many problems in microelectronic circuits,

THE ELECTRICAL FORCE: The positively charged protons exert an electrical force of repulsion on each other. The force between two protons, of equal charge +e, can be calculated from the formula:FE = ke2/r2where

The activity of a radioactive source is the number of ionizing particles it emits per second. Each emission corresponds to a change in the nucleus of one atom and is also called the decay rate. The SI

France produces 75 per cent of its electrical power from nuclear power stations and only 12 per cent from fossil fuels. This compares with just 28 per cent nuclear power in Britain, and 70 per cent from

Deep inelastic scattering (DIS) is an extension of the scattering experiments like that of Geiger and Marsden that led to the discovery of the atomic nucleus. If the alpha particles used had had more energy

The most common techniques for finding the mass and charge of a particle of matter are based on the following: a charged particle moving at right angles to the direction of a magnetic field B experiences

Newton was worried by his theory of gravity. He thought it unscientific because the force of gravity was having to act through empty space, so there was nothing to transmit the force. This worry was ignored

The ways described in my last post titled "The Search for Order and the Classification of Particles", for classifying particles were immensely helpful – interactions could be predicted. But like the Periodic