Science Articles
271: Temperature Sensors%3B A Brief Introduction
From the humble thermometer to advanced electrical heat recorders, temperature sensors are used for all manner of purposes in a disparate number of industries. The more advanced forms of contact measurement device are labelled as thermocouples and resistance temperature detectors or RTDs. The measurement of temperature typically takes place in liqu
272: The Affects of Frozen Water And Dew
Do you know what the frost on your cars and the ground is? It is morning dew, which is water that comes in the morning when you wake up. It will be on your grass, trees, leaves, windows, and everywhere that you can see outside. The frost only comes when it is cold outside, so don't walk on it with your bare feet because your feet will feel so cold
273: The Big Bang And The Start Of The Universe
"In the beginning God created the heavens and the earth." This is how the Bible kicks off, and for almost two millennia was the accepted theory for how the Universe and the Earth came into being. A tricky subject and something that takes a great deal of thought to even contemplate, the origin of time is not an easy thing to study. Up until modern t
274: The First Life On Land
Once photosynthesising cells present in the oceans had produced enough oxygen to form the ozone layer conditions on land were much more favourable to life than before. Without exposure to ultraviolet radiation cells were much more likely to survive being washed ashore. After a major extinction event 488 million years ago plants and fungi started to
275: The Fossil Evidence Is Missing
To his credit, Charles Darwin was a blunt realist. He fully realized that if his theory of evolution was true there should be abundant proof to back him up.
But the application of real science, which means stringent observation and examination of the visible evidence, has uncovered no such proof.
The complete lack of transitional fossils ref
276: The History Of Horoscopes And Astrology
For most of us, our only knowledge of horoscopes comes from what we read in the newspaper or read in a magazine while were in line at the supermarket. These horoscopes are full of vague predictions and advice that can be interpreted any number of ways, thus earning them a reputation of worthlessness and the skepticism of experts.
However, a tru
277: The History of Pheromones
Pheromones are chemicals emitted by living organisms to send messages to individuals of the same species. The idea that chemical communication takes place between individuals of the same species was advanced as early as the late 17th century the first evidence in support of this was obtained in the 19th century by the French priest Henri Fabre, who
278: The Next Generation of Space Telescopes
Originally dubbed the Next Generation Space Telescope, what is now known today as the James Webb Space Telescope is the successor to the Hubble Space Telescope. Scheduled to launch sometime in 2013, the Next Generation Space Telescope is being designed to be bigger and better than the Hubble with many more capabilities.
The James Webb Space Tel
279: The Quest For Water In Outer Space And Other Planets
When we look at satellite pictures that are sent to earth from space, it is wondrous to see how vividly blue our planet is. It is, of course, the vast amount of water that we are seeing. It can give us a better idea of just how little land masses there are compared to the water content. We know that without the water that we have here on earth it w
280: The Resistivity Meter%3B Applications In The Electrical And Mining Industries
Resistivity is the term used when describing the specific electrical resistance of a material. Put into lay mans terms it is a measurement of the resistance of any given material to electric current; it is normally measured using a resistivity meter. A material that has a high resistivity will impede the flow of electricity greatly while those with
281: The Science Behind the Optical Telescope
An optical telescope is a telescope that is used to gather and focus light mainly from the visible part of the electromagnetic spectrum. The optical telescope allows the user to directly view a magnified image of something far away. The term is used especially for a monocular with static mounting for observing the sky.
There are three primary
282: The Science Education Belief In America
Political leaders, tech executives, and academics often claim that the U.S. is falling behind in math and science education. They cite poor test results, declining international rankings, and decreasing enrollment in the hard sciences. They urge us to improve our education system and to graduate more engineers and scientists to keep pace with count
283: The Science Of Astronomy Today
When we think of astronomy, we may be inclined to think that it only deals with scientists and astronomers looking up at objects in space with a telescope. However, there is far more to astronomy than simply looking at objects in space. In this article, we will look into the science of astronomy.
The countdown has started, and astronauts in are
284: The Science Of SmokingHow Smell Works
One of the worlds largest and most valuable jewel collections, the Imperial Crown Jewels of Persia, or Crown Jewels of Iran, consists of a mind-boggling number of treasures. On display at the Museum of The Treasury of National Iranian Jewels in Tehran, Iran, the collection ranges from breathtaking tiaras to jewel-studded swords to princely thrones,
285: The Timeline of the Telescope
It is actually quite easy to make a timeline with regards to the invention of the telescope as well as how it has evolved over the years. Much has been written about the telescope and good records have been kept with regards to new technologies and inventions. Basically, the telescope timeline looks something like this:
1609 - Galileo first in
Page 19 of 29
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29]
