Wednesday, January 25, 2017

Lemon Batteries

The experiment is a simple break down on how common voltaic battery works. A battery usually consists of 2 important parts known as the electrodes and the electrolytes.

We also need to understand the basic structure of an atom because they are components that carry positive and negative charges. By law of nature, an atom carries an amount of these charges. Since we are all made of atoms then we all carry a charge. Moreover, positive and negative charges are attracted to each other. By default, our atoms are in neutral state because they carry an equal amount of these charges. During chemical reactions, atoms becomes unstable where they carry unequal amount of charges. In this case, an atom is called an "anion" if it carries more negative charges and it is called a "cation" if it carries more positive charge.

In a battery there are two electrodes known as the cathode and anode. Anions are drawn more towards to the anode and cations are drawn more towards the cathode. Between the electrodes is an electrolyte which is a substance that allows charged atoms (eg. cations/anions) to pass through. In the above experiment, the "Zinc" metal is the anode, the "Copper" metal is the cathode, and the "Citric Juice" is the electrolyte.

When the zinc touches the citric acid, a chemical reaction occurs called "oxidation". Each of zinc atom releases its negative charges. Negative charges cannot pass through electrolytes so it will pass through the external wire. Since the atom lost negative charge and only have positive charge left, it will pass through the electrolytes and drawn to the cathode which is made of copper.

The negative charges that traveled through the wire will be received to the copper where it gains negative charges along with the positive charges it has and results in a chemical reaction called "reduction". The result of this chemical reaction is hydrogen gas.

Monday, January 23, 2017

Water Bending with Electrons

If we look closely around our surroundings, we see everything as objects. Each and every object are made up of many composition composed of sub compositions. However, if we go to deeper compositions, we would realize these objects are made of atoms.

Each and every atom carry a charge called proton and electron. Protons are positive charges and electrons are negative charges. The state of an atom is called neutral if the number of protons is equal to the number of electrons. These charges by law of physics attract each other.

When two objects collide (like rubbing each other), the atoms of these objects clashes and their charges mixes up. Depending on the material, like rubber, some attracts more charge than the other. Thus, if we look at the video above, the rubber balloon became negatively charged because it took a lot of electrons from the hair. On the other hand, the hair became positively charged because most of its electrons are transferred to the rubber thus leaving mostly protons. Since electrons and protons attract, the hair remained sticking to the rubber balloon as an effect. The flowing water from the faucet is also made of atoms that is in neutral state. However, when the negatively charged balloon got close to the water, it attempted to attract the positive charges from the water making it bend.

Sunday, January 15, 2017

Gravity and Light Bulbs

Turning gravity into energy is not something new. In fact, if you have ever wondered how the clock tower of London is working without battery then Gravity is the answer we’re looking for. Gravity has been the source of energy to make the clock work. Gravity as we know pulls all objects downward which produces a kinetic energy. A machine can be used to absorb the kinetic energy thus converting it to mechanical energy and then can be transformed to electrical energy that is powerful enough to produce light from a bulb.

The video above demonstrate gravity lighting up a bulb. In order for the device to work, it has to use potential energy produced by the gravity. Inside the device, is a machine that is built in the most effective and efficient manner to absorb the energy produced from gravity and transform it to electrical energy. A machine that produces the electrical energy can be done in different ways because electrical energy can be produced either through friction, heat, light, chemicals, pressure, or magnetism. Although the video above does not entirely explain how it works on the inside but most probably a combination of any of the stated sources of electrical energy (probably because it is a secret or patented). However, having the device as cheap as $5.00 it could be possible that the machine uses gears and copper materials to produce friction (cheapest source of electrical energy).

Nevertheless, all these produced electrical energy goes through a light bulb. What makes the light bulb glow is the tungsten filament material. A filament is thin electric conductor wire that can easily heat up and glows. Once it glows, it then produces light.