Renaissance of The Great Nuts

Radioactive Decay Previously we talked about radiation and radioactive elements. So today we are going to talk about "Radioactive Decay". It is the process by which radioactive elements make their nuclei stable by releasing different kinds of particles and electromagnetic waves. First,  we are going to talk about the alpha decay process. Alpha Decay In the Alpha Decay process, unstable nuclei release a particle that contains 2 protons and 2 neutrons similar to helium nuclei, to reach its stability. These particles are hefty compared to other particles so alpha particles are elementary to stop. You can stop an alpha particle just by using a sheet of paper. So let's look at an example - how Uranium - 235 decay releasing alpha radiation. As you can see at first U-235 release an alpha particle. Alpha particle means 2 protons and 2 neutrons. Therefore 2 from the Atomic number of U-235 should be reduced and 4 from the Mass number should be reduced. So it will end up with Th-231...

The sudden chemistry of Electrolysis   We all know that a piece of metal conducts electricity well. And we also know we should not touch the metal if it conducts high amount of electricity. So how does this really happen? The basic types of bonds in chemistry are as two types as primary and secondary. The primary bonds are then categorized into 3 parts called Covalent, Ionic and Metallic bindings. Here, a metallic binding between the metal atoms in the piece have free river of electrons floating in. Now, the extra flow of electrons by the electric current can use these atoms as their medium to move (We’ve sent a separate article for the bindings, see it first). What’s really happening is this flow of electrons. Actually how do they make these rivers of electrons? This is how it happens; an atom should always be in a neutral charge to equally share their number of electrons which are negatively charged and the number of protons which are positive. For a metallic atom like for an exa...

Today's Art Project by Mr. Janith Yatipansalawa The princess of Chloro-plant. Clearly saying, she must be the ruler of the kingdom of plant diversity or maybe, she is the one that's asking you to "STOP! STOP! STOP destroying your own mother nature". The Mermaid of the deep sea. You know what I think, I don't know how she keeps the fish happy... When I go near my fish tank, my poor little sprat like fish just flow away, or I guess they are trying to grin at me even though they can't (Poor me). The Lady-Violet VIOLETS are one of my most favourite flowers 'cause they are sweeeeet and also purple. Maybe she is trying to pluck some of them or trying to take a bath of flowers.  The Queen of the forest beauty. She must definitely be the queen of forest. I mean, Her hair is a bouquet of flowers (And also a butterfly there) and her face is just the same as a trunk of a tree. No words, just fantastic! The Night's Fairy. She kind of look sad but I think it's ...

  Gravity powered Lamp This is a lamp that is powered by a bag of sand or rocks, hung by a cord, which gradually comes down just like the weight drive in a cuckoo clock. The concept of GravityLight was developed by Clay Moulton and Mike Wofsey in 2006, though early prototypes were found to be inefficient. They found that 10 kilograms of mass raised to a height of one meter gives a maximum energy of 98 joules, which at 100% conversion efficiency for five minutes, and would produce 0.32 watts and 0.16 watts at 50%. The resulting LED light was not enough for reading or working, so, they traded illumination brightness for illumination time. Following two fundraising campaigns, Martin Riddiford and Jim Reeves developed the light further. The slowly falling weight spins gears driving the electric generator and powering the LED for 25 minutes. After that, the weight can be lifted up again with the cords to power the light for the next 25 minutes. When mass produced, these lights can serve...

  WiFi to LiFi The name says it all: LiFi aims to use light to transmit information from point A to point B. The technology works by encoding digital data and turning LED bulbs on and off faster than humans can notice to transfer it. The light then travels to a photoreceptor, which can decode and translate the data to a more classic radio frequency (WiFi, 4G, 5G…). There are a lot of advantages to doing things this way. What with light being used, the speed at which the information is transmitted is very, very high — up to 100 Gbit/s, in theory; 5 times faster than 5G. Furthermore, the sheer number of LED bulbs already around us hints at a potential future wherein (cheap) access points to receive data are everywhere. Finally, the light waves used as the basis for LiFi do not pass through walls (but can however be reflected off of them). The risk of hacking is therefore much lower than with WiFi, though this seriously limits indoor use cases. On the other hand, the use of LiFi requi...

  The Universe’s Final Fate Astronomy – Cosmology There are a bunch of theories that predict how the universe dies. Some of them are named, Heat Death, Big Crunch, Big Rip, and so on. But today we’re going to talk about the theory – THE BIG CRUNCH . The Big Crunch Big Crunch is a hypothetical scenario that describes the 'death' of the universe. We know that the universe is expanding at an accelerating speed.  According to this theory, after trillions of years, the expansion of the universe stops and reverses. That means the universe will start to collapse. When the universe is getting smaller and smaller, the temperature of the universe will begin to rise dramatically. And at some point, the universe will contract so dense that it will be the size of a singularity. It will be somewhat similar to the singularity which started the universe. The entire matter of the universe is contracted in this singularity with an infinite mass and infinite temperature. After that, this...

The real definition of a derivative

The Chemical Bonds Types

Mummy of Queen Nefertiti Brought to Life Mummy of Queen Nefertiti Brought to Life With Controversial Fair Skin in 3-D Scan. The face of Queen Nefertiti, who may have been King Tutankhamun's biological mother, will be revealed on the Travel Channel's Expedition Unknown, which airs Wednesday night. The face is the result of the latest 3-D imaging technology that used the mummy's facial structure to bring the 3,400-year-old queen to life, but it's the sculpture's skin color, not cheekbones, that has raised the most controversy. In order to create the bust of the ancient queen, a team of scientists at the University of Bristol in England digitally mapped the face of a mummy known as "The Younger Lady." The mummy was found in 1898 and is believed to be of Queen Nefertiti, but this was never proven. The mummy's face was digitally mapped to make an accurate facial construction for the bust. Then, paleoartist Elisabeth Daynes recreated the Queen's face on ...

  How Auroras Form Planetary Astronomy and Physics The sun constantly emits a stream of charged particles called the solar wind. When these particles reach the Earth, they are deflected by its magnetic field and directed toward the polar regions. As these charged particles collide with the molecules in the Earth's atmosphere, they transfer energy to them, causing the molecules to emit light. This causes the beautiful light display we see in the sky, known as auroras. The type of gas in the atmosphere and the altitude at which the collisions occur determine the color of the auroras. For example, oxygen atoms produce a green or red aurora, while nitrogen produces a blue or purple aurora. Auroras occur most frequently during periods of high solar activity, such as during a solar flare or coronal mass ejection. These events can send many charged particles toward the Earth, resulting in more frequent and intense auroras.

Radioactive Elements -Radioactive elements are substances that contain unstable atomic nuclei that spontaneously decay and emit particles or radiation. These elements can be found naturally in the environment or can be created in laboratories through nuclear reactions. There are many different radioactive elements, each with unique properties and levels of radioactivity. Some of the most well-known radioactive elements include uranium, radium, plutonium, and thorium. One of the most famous radioactive elements is uranium. This element is commonly used in nuclear power plants as fuel to generate electricity. Uranium is also a key ingredient in nuclear weapons, and its use has been the subject of much controversy due to the potential risks associated with nuclear technology. Another well-known radioactive element is radium. This element was once commonly used in medical treatments and even in consumer products such as toothpaste and cosmetics. However, radium is now known to be highly da...

  The Pythagorean Theorem of Obtuse and Acute angled triangles .pdf version By, Sithumina