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have you read His Word today? come on, let HIM guide our lives
God is my strength. He is the salvation for me. He was the one who led me into green pastures. He is the truth, way, and live. It was Jesus who died for our sins. Let Him Lead Us TODAY ...
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Sunday, May 22, 2011
OHHH... YOU WANT LEARN SOME SCIENCE TODAY..??
OK LETS CHOOSE WHAT DO YOU WANT TO LEARN TODAY!
PHYSICS
BIOLOGY
CHEMISTRY
M...
Mechanical Refrigeration System
In refrigrasi mechanical vapor compression systems are a series of four main components: evaporator, compressor, condenser, and refrigerant flow control devices. Each component has a trait and its own function differently, but in an integrated and operate together will be able to move the thermal energy.
The impact of operating a refrigeration system on an object is, if picked up some of the energy contained in it, the temperature of the object will decrease. Conversely, because the refrigeration...
PLC (Programmable Logic Controller) - An Introduction
PLC (Programmable Logic Controller) was first introduced in 1969 by Richard E. Morley who was the founder of Modicon Corporation. According to the National Electrical Manufacturing Association (NEMA) PLC is defined sebagasi a digital electronic device with a programmable memory to store instructions that perform specific functions such as logic, sequence, timing, counting, and arithmetic to control an industrial machine or process in accordance with the desired industry.
PLC is capable of doing...
Temperature data acquisition using microcontroller
Abstract
This paper discusses the design of the temperature data acquisition system that uses a component-konponen basic form of a temperature sensor, microcontroller and LCD as the viewer facility. Temperature data acquisition system into the one thing that is very important in industrial activity, because it is a small part of a process control.
With regard to the importance of the system, then the design temperature data acquisition system capable of monitoring the temperature of a plant. Data...
History of Computers
Computers we use today are not necessarily just show up but through a long process of evolution. Happenings emergence of the computer may be viewed in flashback history since the use of Abacus - found in Babylon (Iraq) about 5000 years ago - as a means of manual calculation of the first, both in the scope of the school and among traders, at the time.
At a later period has been widely found in the means of calculating the mechanical kind that is Pascaline invented by Blaine Pascal in 1642, arithometer...
COMPUTER NETWORK TECHNOLOGY
COMPUTER NETWORK TECHNOLOGY
A. Preliminary
Computer networks is not something new today. Almost in every company there is a computer network to facilitate information flow within the company.
Internet is gaining popularity today is a giant computer network which is a network of computers connected and can interact with each other. This can happen because of the development of network technologies very rapidly, so that within a few years the number of users of computer networks belonging to the...
AVR Microcontroller Programming with C
Programming Language C for AVR widely used C language for programming a variety of devices, including microcontrollers. This language is already a high level language, which allows programmers pouring algorithm. To know basic C language can be studied as follows.
1. Coding Structure
# Include <[library1.h]> / / Optional
# Include <[library2.h]> / / Optional
# Define [name1] [value]; / / Optional
# Define [name2] [value]; / / Optional
[Global variables] / / Optional
[Functions] / / Optional
void...
Mystery Numbers : Zero
Yusmichad Yusdja, staff researcher at the Center for Research and Social and Economic Development of Agriculture IPB
Hundreds of years ago, people only Knew the 9 symbol numbers 1, 2, 2, 3, 5, 6, 7, 8, and 9. Then, come the number 0, so the number of symbol numbers into 10 pieces. It is unknown WHO's the creator of the number 0, the only historical evidence shows That the number 0, first discovered in ancient Egyptian times.
At That time only as a symbol number zero. In modern times, the number...
Mystery of Black Holes Numbers: 123
In astronomy and physics, we know of the existence of a natural phenomenon that is very interesting that a black hole (black hole). Black hole is an entity that has a very strong gravitational fields so that every object that has fallen in the area of event horizon (the area around the core of a black hole), will not be able to escape again. In fact, any electromagnetic radiation such as light can not escape, resulting in a black hole becomes "invisible."
Apparently, in mathematics there is also...
Saturday, May 21, 2011
What is radiocarbon dating technique can be used to find out what age?
This technique will not help us if we want to know is still in his life, such as friends talked us through the Internet that claim to 25 years. Determination of age using radiocarbon dating techniques (radiocarbon dating) is useful to determine the remaining life of plant or animal that died about five hundred to fifty thousand years ago.
Since the discovery by a professor of chemistry University of Chicago, Willard F. Libby (1908-1980) around 1950s (he received the Nobel Prize for the discovery...
Know Hydrogen Peroxide (H2O2)
Hydrogen peroxide with a chemical formula H2O2 was found by Louis Jacques Thenard in the year 1818. This compound is an inorganic chemical that has powerful oxidizing properties. Raw material of hydrogen peroxide is hydrogen gas (H2) and oxygen gas (O2). The technology is widely used in the auto industry is the hydrogen peroxide oxidation of anthraquinone.
H2O2 is colorless, odorless typical slightly acidic, and dissolves well in water. Under normal conditions (ambient conditions), hydrogen peroxide...
Working Power of Detergents
As the other cleaning materials, detergents is the fruit of technological advances that make use of the chemical byproduct of petroleum refining, combined with other chemicals such as phosphate, silicate, dye, and fragrance ingredients.
circa 1960's, early-generation detergent appeared using surface activating chemicals (surfactants) Alkyl Benzene Sulfonate (ABS) which is able to produce foam. However, due to the difficult nature of the ABS is broken down by microorganisms in the soil surface,...
Metallic Mercury Toxic Effects
Mercury is denoted by Hg, Hydragyrum acronym meaning liquid silver. Mercury is one metal element which is in group II B in the periodic system, with atomic number 80 and mass number of 200.59. Mercury produced naturally derived from ore processing, Cinabar, with oxygen (Palar, 1994).
The resulting mercury was used in the synthesis of inorganic compounds and organic compounds that contain mercury. In everyday life, mercury is in three basic forms, namely: metallic mercury, inorganic mercury and...
New sources of sugar
In general, the condition of the national sugar industry, at least, has three main problems. First, the low purchasing price of sugar for the production of farmers due to low world market sugar prices. Second, the low productivity of the sugar mills and many are not efficient.
Third, the development of the national sugar industry continues to slump. Sugar production in Indonesia has decreased annually by 2.14% or 44,328.695 tons. While the development of sugar consumption in Indonesia increased...
The C-Value Paradox
ethics you examine the genomes of various species, you must have thought that a simple organism has a genome that is smaller than the more complex organisms.
Because, you assume that the simpler organisms require less genes than the more complex organisms. This assumption is true, but estimates that the simpler organisms have smaller genomes does not fit the facts.
Take for instance the comparison between humans and amoeba. Humans certainly have more genes than the amoeba, because humans are multicellular...
Ethanol fermentation by Saccharomyces cerevisiae: The Crabtree Effect
Saccharomyces cerevisiae has long been used in industrial alcohol and alcoholic beverages because it has the ability to ferment glucose into ethanol. The interesting thing is the process of ethanol on yeast fermentation takes place in aerobic conditions.
According to Pasteur, the presence of oxygen will inhibit the fermentation pathway in the yeast cell so that there is a carbon source to be used via the respiratory route. This phenomenon is often referred to as the Pasteur effect (Walker 1998)....
Know Amylomyces rouxii
Indonesia and the Asian countries known for food that is produced through fermentation of solid substrate containing starch in large quantities. Examples are cassava and tape sticky tape from Indonesia, chiu-Niang from China, wine from the tape sticky rice from Vietnam, and others.
The fermentation process, using two groups of microorganisms that have different roles, the first group will break down starch into glucose, while the second group will convert glucose into ethanol. Microorganisms...
What causes a sonic boom?
Many do not make sense about the story about sonic booms or explosions. Columbia Encyclopedia 5th edition (1993) says, "An object like an airplane, for example, produce sounds. When the sound of it reaches or exceeds the speed of sound, the object is caught up with the noise itself. "
On the other hand, many people believe there is something called "sound barrier" or the sound barrier, also that when the plane flew past him he issued a loud bang, as if he had hit an invisible glass wall. It is...