technology and science

  Why can’t you use fingerprint after restarting your phone “Please use passcode after the phone restarts” you must have seen such a message popping on your screen after you restart your phone and try to unlock it using your fingerprint scanner, so why fingerprint doesn't work after restart? The simple answer to this question lies in the ease of unlocking your phone using the fingerprint scanner, or it is even correct to say that your fingerprint is way more important than password when it comes to security Here are the reasons for which fingerprint unlock is restricted after restart 1 to protect your phone when someone steals it 2 to make you remember your pin 3 law in u.s 1 to protect your phone when someone steals it suppose your phone has been stolen, the first thing a thief will do is to switch off your phone, so its location cannot be traced, now after starting the phone he/she would need a password to unlock it, whereas if it would be unlocked with your fin...

there are chances that you must have heard interesting stories about time travel or traveling to a parallel universe (see: some basic concepts on parallel universe ) one of the theoretically possible ways of traveling in time or into another world is by using wormholes ________________________________________________________ wormhole meaning  a wormhole also is known as the einstein-Rosen bridge is a shortcut through space and time what we mean by a shortcut is that distance between two very distant points in space can be reduced with their use this idea might seem to be impossible at first because our general perception of space tells us that space is unaffectable to understand this concept, space can be thought o behave like a stretched rubber membrane space can be bent, stretched, or contracted to analogically understand wormhole, consider 2 dots on a piece of paper the shortest path to reach from one dot to other is along the straight line passing through them but if we bent th...

   Quantum computers, this a term which you probably have heard at some point, even if you are not much into technology this computing is probably the future of mankind In this article, we will be covering the following topics Do quantum computers exist? yes they exist, but they are not very powerful  Quantum computers are now a thing of reality, but the existing quantum computers are at the very initial phase of development, the current quantum computers are the ones born right after theory  Leading technology companies such as IBM and Google have been constantly researching on quantum computing and now they have successfully developed quantum computers which are able to solve certain problems At the end of this article we will also link you to the IBM’s quantum com[puter experience, so you yourself can actually experience the technology of future There is even a company that sells quantum computers, called D-Wave  D-Wave  quantum computers  a compute...

does superconducting levitation fascinate you? even if you have no physics background, you are going to exactly understand how levitation works along with 7 other applications of superconductors so let's get started superconductivity  the first step to understand how things levitate is to understand what is a superconductor definition- it is a substance which offers no electrical resistance to any current flowing through it   the opposition to current in a material is a function of temperature, it increases and decreases with temperature but, there is a particular temperature below which the resistance becomes zero this temperature is the critical temperature(Tc) below the temperature Tc, the material becomes a superconductor conduction in metal takes place by electrons, but in superconductors, it is done by a pair of electrons these pairs of electrons are called cooper pairs a magnetic field induces currents in the superconductor these currents repel the external magnetic fie...