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Home > News > Tags > Oxygen
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Bacteria are extremely small organisms, and in many cases, they consist of only a few cells. There are species that only have a single cell, and therefore keeping it intact is a major priority. Over the course of their evolution, the organisms have set up a clever and ingenious defense mechanism against aggressive ox... |
21 November 2009
04:49 GMT |
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According to a group of researchers, it may be that the earliest forms of life on the planet might have been made possible by the influence of thousands of small, nuclear fission reactors blasting everything around them with radiation. The model would account for the reason why a radioactive substance has all but dis... |
30 October 2009
19:51 GMT |
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Common scientific knowledge has it that, about 2.4 billion years ago, the levels of the chemical oxygen in the Earth's atmosphere began to suddenly climb, until they reached at one point concentrations similar to the ones existent today. The fact that the planet is able to support such a variety of life forms is... |
30 October 2009
02:14 GMT |
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Diatoms represent one of the most important groups of eukaryotic algae and they are mostly unicellular phytoplankton. The organisms, which live in the world's seas and oceans, are responsible for producing about 25 percent of the total amounts of oxygen in the world, yet little is known about their very structur... |
19 October 2009
16:41 GMT |
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Europa has been one of the favored targets in the solar system for experts looking for signs of life someplace else besides the Earth. Astronomers and astrobiologists have been drawn by the fact that the natural satellite features a smooth, craterless surface, an extended network of deep fractures, as well as a brigh... |
14 October 2009
02:43 GMT |
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Named after a mythical Phoenician noblewoman, Jupiter's sixth moon, Europa, may be among the safest bets in the solar system, in terms of having the ability to sustain life as we know it, astronomers have recently announced. In the investigations, the experts determined that the massive ocean of liquid water tha... |
9 October 2009
06:48 GMT |
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Even before lunar probes concluded that water-ice had to exist on the surface of the Moon, engineers at NASA had been studying how to obtain water from the bare space rock. Now that investigations have shown that ice can, indeed, be found on at least several locations, those visions for human exploration have been pu... |
30 September 2009
09:56 GMT |
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This week saw one of the most important announcements made in the past decade. Scientists were finally able to conclude that water ice existed on the Moon, and their theory is supported by scientific measurements conducted by three separate instruments. Additionally, the find could be again proven next month, when th... |
25 September 2009
01:52 GMT |
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One of the basic facts of life is clearly the knowledge that life on our planet cannot survive without oxygen. When the Earth first formed, there was a very small concentration of the gas, maybe less than one percent of the total atmosphere. However, two big oxidation events were recorded over the eons, both of which... |
10 September 2009
14:51 GMT |
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According to statistical estimates, Earth's rocks should have a much higher concentration of carbon dioxide inside them than proven scientifically, and the discrepancy has experts asking where the rest of the chemical went. The estimates were drawn from the amount of carbon that can be found in the planet-formin... |
12 August 2009
05:15 GMT |
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In a groundbreaking new find, experts at the University of Cambridge, in the United Kingdom, have announced having managed to find a way to convert Moon rocks directly into oxygen, a find that could have significant implications on future expeditions to the Earth's natural satellite. For would-be colonists, ever... |
12 August 2009
04:49 GMT |
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Over the past few decades, there have been relatively few improvements in the technology employed in batteries, despite the emergence of lithium-ion cells and other similar devices. However, the capacity has remained roughly the same overall, and a breakthrough in the field has been long sought. Experts at the Univer... |
19 May 2009
09:38 GMT |
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Geologists at the University of Maryland may have just made one of the most important discoveries to explain the ancient history of our planet, namely what it was that triggered one of the earliest Ice Ages in history. A new scientific research seems to point at the fact that the appearance of oxygen, synthesized by... |
7 May 2009
10:24 GMT |
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The creation of new methods for splitting water into hydrogen and oxygen is paramount for a number of industrial and chemical processes, as well as for various civilian and military applications, but existing methods are very consuming, as far as time, money, and catalysts go. Now, researchers at the Weizmann Institu... |
7 April 2009
09:54 GMT |
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The Precambrian Age, which spanned from the formation of our planet, some 4,500 million years ago to approximately 542 million years ago, is perhaps the most important in terms of planetary evolution. That is to say, at that time, bacteria, microbes, and other microorganisms developed the ability to synthesize oxygen... |
21 March 2009
06:50 GMT |
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A team of eight doctors climbed the highest peak in the world, Mount Everest in Nepal, to analyze the effects of hypoxia on the human brain, as well as the differences in oxygen amounts in the blood between critically-ill patients and high-altitude climbers. Usually, the levels of oxygen at such elevations can trigge... |
8 January 2009
06:41 GMT |
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There's not much certainty provided by the facts theorized about the Earth's early years. Actually, the first five hundred millennia hold so little record of activity that the respective time frame is referred to as the Earth's dark ages. This major shortage of solid proof left many questions unanswere... |
9 December 2008
06:13 GMT |
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The mass extinction of the marine life nearly 93 million years ago would have been most likely determined by the lack of oxygen in the oceanic waters as an intense underwater volcanic activity was triggered, says a study co-authored by Steven Turgeon of the University of Alberta. For a long time volcanism was thought... |
17 July 2008
10:29 GMT |
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So what is really the cause of apples remaining healthier than pears for a much longer time after being picked up? Scientists argue that it all has to do with oxygen and the way it behaves in order to reach the center of the fruit. By using one of the most powerful light sources in the world, Pieter Verboven of the C... |
12 July 2008
07:15 GMT |
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A typical Self-Contained Underwater Breathing Apparatus, or scuba gear for short, usually consists of a tank containing compressed air and a mouthpiece used to regulate the flow of air from the tank into the lungs. But breathing air in this manner is extremely inefficient, especially while considering the application... |
26 May 2008
08:51 GMT |
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The permanent crew on board the International Space Station is now formed of only three astronauts, but it will soon be able to support a complement of six, meaning that it will require a new water reclamation system to recycle the water used on board. The newly built water recovery systems, which will be set to fit ... |
13 May 2008
09:56 GMT |
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Blowtorches have been invented in the late 19th century and have since become both cool and useful to use in different applications ranging all the way from welding and cutting metal, lighting up cigars, melting jewelry and even cooking! They work on the basis of an oxygen and fuel gas mix, fed into a torch head from... |
3 April 2008
09:08 GMT |
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It is pretty clear that, in this rhythm, very few of us will have any money to buy petrol. That's why the U.S. Department of Energy's Argonne National Laboratory is trying to develop new means through which chemically manipulated algae generate renewable fuels, such as hydrogen gas for example. "We believe ... |
2 April 2008
06:07 GMT |
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The Large Magellanic Cloud is a small galaxy in the Local Group only 160,000 light years away from Earth. Recently, NASA's Chandra X-ray Space Observatory discovered a large supernova remnant that contains large amounts of oxygen. The N132D supernova remnant is part of an oxygen-rich remnant and the brightest fe... |
18 March 2008
04:31 GMT |
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NASA is finally talking business and is clearly determined to put a manned mission on the surface of the Moon within the next decade and, why not, to establish a lunar base on our only natural satellite. The new lunar rover demonstrated by the NASA team during the Space Exploration Conference, which took place betwee... |
28 February 2008
09:12 GMT |
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Usually, when a metal catalyst reacts with an oxygen molecule, the individual split oxygen atoms behave in identical ways. It seems that this is not the case when oxygen molecule interacts with titanium metal. When the two oxygen atoms get split up, one remains embedded into the titanium crystalline structure, while ... |
14 February 2008
08:50 GMT |
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After more than three weeks of delicate operations to load fuel onboard the Automated Transfer Vehicle Jules Verne, European engineers have also been successful in loading the precious oxygen cargo that will be delivered onboard the International Space Station. This represents the European Space Agency's first I... |
29 January 2008
10:52 GMT |
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Just when you think you know everything about it, it starts again acting in unpredictable ways. Water is probably the substance with the longest list of anomalies known to man, meaning it behaves in unique and contrary ways in relation to the vast majority of all the other substances. When it freezes, it expands, as ... |
19 January 2008
06:34 GMT |
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1. Blood has the role of transporting food and oxygen to the cells, and to remove toxic wastes, including carbon dioxide. An average human adult has 5 liters of blood which comprises about one liter of oxygen, a quantity which, in resting conditions, would be enough for 4 minutes (in case of intense effort, just 1 mi... |
18 January 2008
17:21 GMT |
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1.The Earth is wrapped in a layer of gas called atmosphere. Atmosphere is tied to Earth by gravitation, so that it cannot disperse in the space. It is 500 km (300 mi) thick, being made of a mix of about 10 gases, called air. The air is made by nitrogen (78 %), oxygen (21 %) and other gases (argon, carbon dioxide, he... |
14 January 2008
16:26 GMT |
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Oxygen enters into our bloodstream through the lungs, while the toxic carbon dioxide is also expelled through them. We call this process breathing. The lungs have a system of tubes called bronchia. Bronchia ramify into gradually smaller tubes that can be as thin as a human hair. At the end of the thinnest tubes, call... |
14 January 2008
14:06 GMT |
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I would really like to live and say this line, the guy at the pump would probably laugh himself to death before filling the tank of the car. Imagine going home to your wife saying: 'Honey can you give me some money? I've just spent 20 bucks on pig manure... I was out', and her being like: 'You di... |
7 January 2008
04:51 GMT |
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Fire is the biggest destroyer of human life and goods. Now the ultimate technologies fights against it. Conventional firemen cars for putting out building fires are endowed with tanks of 1,365 liters of water and telescopic stairs with a length of 9-15 m (30-50 ft). This water is used only when there is no other sou... |
4 January 2008
14:06 GMT |
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We depend on them whether it is winter or summer, however if you have been staying in house for the last three days with all the doors and windows closed, without your air conditioning unit on, and you feel a slight headache maybe it's time to open the window to let some fresh air in; your life may depend on it!... |
27 December 2007
09:19 GMT |
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The chemical substance that we commonly call water presents some of the longest lists of substance anomalies known to man, amongst which most of them are widely a mystery to most people, such as phase, density, material, thermodynamic and physical anomalies. For example, water as a gas is the lightest known, as a liq... |
21 December 2007
06:50 GMT |
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The highest mountain in the world is Himalaya: its Chomolungma peak reaches 8,848 m (27,000 ft) in height and its next 170 peaks are all over 7,000 m (23,300 ft) tall, being the next on the worldwide scale! The largest freestanding mountain in the world is Africa's Kilimanjaro: 5,895 m (19,650 ft) with its high... |
13 December 2007
14:07 GMT |
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This is the champ diver of the birds' world, not just the largest penguin. A new study, published in the "Journal of Experimental Biology", attempts to decode the secret of why emperor penguins can dive down to 1,850 ft (565 m) for up to 23 minutes (with an average of 6 minutes) with a sole breath: a special hy... |
12 December 2007
03:39 GMT |
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About 3 % of the people will faint after donating blood for analysis or eye inspection. In case you suffer from this, you could try to do something to prevent it, but it is all in vain. You could try going to toilet in order to avoid being seen by anyone, but you could faint on the way and get hurt. The cause of fain... |
27 November 2007
18:49 GMT |
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1.The blood of all humans and animals is salty. Why? Because all animals started to evolve in the ocean, at least 3.8 billion years ago, under the form of unicelular creatures. Thus, the enzymatic systems sustaining life evolved during millions of years in watery conditions of high salt amounts. The content of the so... |
19 November 2007
14:11 GMT |
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The process is somehow similar to that which involves the wastewater cleaning operation, but tweaked a little, so that common bacteria that clean the waters will produce hydrogen instead, in a new efficient way. An experiment conducted at Penn State University has already successfully used microbes to produce electri... |
13 November 2007
05:44 GMT |
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We know that hemoglobin, the iron-rich pigment of the blood's red cells is the carrier of the oxygen from lungs to tissues and carbon dioxide from tissues to lungs. Now, a team from Wake Forest University, the National Institute of Health and other institutions has found, in a research published online on Nov. 4... |
6 November 2007
04:11 GMT |
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For no apparent reason, it seems that instead of developing, the fuel cell technology is stagnating. A truly remarkable technology, the fuel cells, seem to promise us a lot of advantages. Gas emissions that produce the greenhouse effect could be a thing of the past, and we could exploit a good reliable renewable sour... |
5 November 2007
10:13 GMT |
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Although water is found almost everywhere on Earth – 70 percent of our planet being covered with the indispensable liquid, of which 97 percent is salty water – the scientists’ quest for new types of renewable energy uncovers a series of chemical reactions that can be used to produce water in a new way.Water is a che... |
1 November 2007
07:32 GMT |
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You would get sick and disabled in the low oxygen conditions that are to be found at a hight of 14,763 feet (4,500 meters), which is the average altitude of the Tibetan Plateau. Yet, the Tibetans ruled empires from the 'roof' of the world.Such heights have defeated many mountain climbers, as the shortage of... |
30 October 2007
03:52 GMT |
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Microsoft has debuted the cooking of a security-management platform codenamed Oxygen. For this, the Redmond company hired Mark Curphey, as the new head of the ACE Services in Europe. The work of the Application Consulting & Engineering Team over at Microsoft is intimately connected to application performance, securit... |
10 October 2007
09:18 GMT |
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Our planet seems to have filled its lungs with oxygen 50 to 100 million years before previously believed. Two new researches show that low levels of oxygen were already present in the oceans and possibly in the atmosphere around 2.5 billion years ago, pointing to the fact that oxygen-releasing microbes, like cyanobac... |
28 September 2007
07:20 GMT |
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Oxygen, one of the largest US cable networks, signed a deal with YouTube to create a new channel on the online video sharing service in order to publish exciting content usually distributed through its TV channel. The new YouTube - Oxygen page was already released on September 17th and provides one click access to at... |
26 September 2007
09:20 GMT |
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The dream of many producers is to obtain naturally long lasting fruits. Until that dream becomes reality, they will fill the fruits with all kinds of additives to look healthy and fresh, even if they stay on the shelf for months. But what makes apples (and other fruits) go brown when cut or bruised? From that very mo... |
6 August 2007
07:16 GMT |
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While KDE 4 Beta 1 was just released today, a version that marks the stabilizing of foundations for the new major release of KDE, the team prepared a wallpaper contest for all of you KDE users out there!Here are the official contest rules:￭ You can send as many wallpapers as you like, but if you want to send m... |
2 August 2007
06:47 GMT |
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The strong and prolonged contraction of a muscle during exercising causes sooner or later muscle fatigue. Researches showed that the fatigue increases while the glycogen stored in the muscles decreases. The glycogen is a glucose polymer, like an animal starch. When the muscle needs glucose to burn, the glycogen cuts ... |
17 July 2007
12:34 GMT |
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