Environment

Environment

Why does a bee only visit one type of flower at a time? It seems such a waste of energy. I read that a supermarket won an award for its two-year-matured puddings. So, what happens over two years to bring out the flavour? Where I live, I use five different bins and the collections are fortnightly. Unlike many people I observe, I squash things like aluminium cans and plastic milk bottles. It seems logical and reduces the volume of rubbish stored in the house — but does doing so help collection and recycling? At what point would something be attracted to someone or able to establish an orbit? Continued 24 January How much lead was used in the manufacture of leaded petrol before it was banned, and where is that lead now? It doesn’t seem to cause them to lose their fur or hair, unlike humans.

Younger Man / Older Woman

More than 20, wartime Mosquito engineering drawings and diagrams have been found in the corner of a wartime factory just days before bulldozers were due to flatten it. The drawings, on microfilm cards, have been donated to a charity hoping to restore and fly a crashed version of the versatile, twin-engined, de Havilland aircraft.

John Lilley, chairman, said the drawings had been found earlier this year by an engineer just before the former de Havilland building in Broughton, near Chester, was to be demolished. A de Havilland Mosquito being built Credit: The building itself was soon to be demolished and the contents discarded.

The new Discovery Commercial is the latest in a line of Discovery vans dating back to the original Discovery 1, and JLR UK MD Jeremy Hicks said it has always been a key part of the range.

By Leah Froats September 14, 2: As the tattooed population knows all too well, the process of tattooing consists of placing insoluble deposits of pigmented ink just below the epidermis, or outermost layer of skin. As they also know, your body does pretty much anything it can to get that ink out — which is why new tattoos excrete ink, plasma, and lymphatic fluid through the epidermis while healing. The ink-lymph mixture is carried through the lymph nodes, whose job it is to process and filter harmful substances from the body.

None of this is really news — tattooed individuals have displayed pigmented lymph nodes for decades. But what is it, exactly, that the lymph nodes are filtering out? Black tattoos are frequently made of iron oxides and carbon, while colored inks can contain nickel, chromium, manganese or cobalt. An example of green ink particles that leached into a lymph node. Schreiver, et al According to the study, the two most common ink ingredients are carbon black and titanium dioxide, the latter as a white shade commonly used for mixing.

And just how big are the particles in those compounds? On average, particles range in size from as large as nanometers to as small as 1 micrometer To discover what particles end up in the lymph nodes of tattooed individuals, researchers focused on the nodes of four tattooed cadavers and one non-tattooed control. The study revealed tattoo particle pigmentation in two out of the four tattooed donors — specifically, blue and green pigments.

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Classification[ edit ] Varieties of soybeans are used for many purposes. The genus Glycine Willd. The subgenus Soja Moench F. Both species are annuals.

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Resources Contact and General Information If you think you are experiencing symptoms related to exposure to blue-green algae e. If your pet displays symptoms such as seizures, vomiting, or diarrhea after contact with surface water, contact your veterinarian right away. If you are or your local community is interested in collecting samples for analysis, please contact the Wisconsin State Laboratory of Hygiene at The Wisconsin Department of Natural Resources is not currently conducting any routine monitoring for blue-green algae or blue-green algal toxins.

What are blue-green algae? Blue-green algae, also known as Cyanobacteria, are a group of photosynthetic bacteria that many people refer to as “pond scum. Blue-green algae generally grow in lakes, ponds, and slow-moving streams when the water is warm and enriched with nutrients like phosphorus or nitrogen. When environmental conditions are just right, blue-green algae can grow very quickly in number. Most species are buoyant and will float to the surface, where they form scum layers or floating mats.

When this happens, we call this a “blue-green algae bloom. Many different species of blue-green algae occur in Wisconsin waters, but the most commonly detected include Anabaena sp.

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By Eric Betz December 8, Simonne The dead cores of two stars collided million years ago in a galaxy somewhat far away. The collision was so extreme that it caused a wrinkle in space-time — a gravitational wave. That gravitational wave and the light from the stellar explosion traveled together across the cosmos.

His other major operas include Buoso’s Ghost (), Corps of Discovery (), Slaying the Dragon (), Speed Dating Tonight! (), and Alice Ryley (). He has also written the librettos of a number of his own operas.

Visual spectrum This site, closely coupled to The Natures of the Stars and The Hertzsprung- Russell HR Diagram , provides an introduction to the spectra of stars and allied celestial objects. Here we examine the principal way in which astronomers have learned so much about the stars. Spectra has been translated into Romanian. The visual spectrum Pass sunlight through a triangular prism or bounce it off the finely grooved surface of a compact audio disk and see it break merrily into a band of pure sparkling color, its “spectrum,” familiar in the colors of a rainbow, in light glittering from newly fallen snow, in the rings and haloes around a partly- clouded Sun and Moon, in the flash of a cut diamond, and in so many other facets of nature.

The classic colors red, orange, yellow, green, blue, and violet connect in a seemingly infinite number of shades, one blending smoothly into the next. Together they constitute the “visual spectrum” or “optical spectrum” because it is the part of the full spectrum that is seen with the human eye. The rainbow is a natural spectrum caused by the refraction and reflection of sunlight through raindrops, and shows that sunlight consists of a continuous run – – a continuum — of colors from red to violet.

Note the fainter outer bow caused by double reflections inside the raindrops. Kaler Extending the light: Most of the energy of the Universe is transported in this way, by radiation. The visual spectrum of light, however, is but a tiny portion of the whole picture, of a huge spectrum of radiation that extends in both directions from the edges of the rainbow.

If with superhuman eyes you could see beyond red, you would encounter the “infrared” — felt as heat on the skin — which would merge gradually into the familiar “radio” portion of the spectrum.

Tommy Oliver

I was invited to moderate a NASA panel on exoplanets, with the twist of looking at them through the lens of science fiction. How do the planets we discovery compare to those seen in Star Trek, Stargate, and so on? This time by my lgood friends at the Science and Entertainment Exchange , a group a program of the National Academy of Sciences!

So no graphics, nothing but their own voice and enthusiasm. That sounded like a lot of fun, and I love the Exchange, so I agreed immediately. It turned out to be a good choice.

Those Damn Micro Transactions Get You Every Time. There’s an extra minute of the video but it’ll cost you $ US.

The Radiometric Dating Game Radiometric dating methods estimate the age of rocks using calculations based on the decay rates of radioactive elements such as uranium, strontium, and potassium. On the surface, radiometric dating methods appear to give powerful support to the statement that life has existed on the earth for hundreds of millions, even billions, of years. We are told that these methods are accurate to a few percent, and that there are many different methods.

We are told that of all the radiometric dates that are measured, only a few percent are anomalous. This gives us the impression that all but a small percentage of the dates computed by radiometric methods agree with the assumed ages of the rocks in which they are found, and that all of these various methods almost always give ages that agree with each other to within a few percentage points.

Since there doesn’t seem to be any systematic error that could cause so many methods to agree with each other so often, it seems that there is no other rational conclusion than to accept these dates as accurate. However, this causes a problem for those who believe based on the Bible that life has only existed on the earth for a few thousand years, since fossils are found in rocks that are dated to be over million years old by radiometric methods, and some fossils are found in rocks that are dated to be billions of years old.

If these dates are correct, this calls the Biblical account of a recent creation of life into question. After study and discussion of this question, I now believe that the claimed accuracy of radiometric dating methods is a result of a great misunderstanding of the data, and that the various methods hardly ever agree with each other, and often do not agree with the assumed ages of the rocks in which they are found.

I believe that there is a great need for this information to be made known, so I am making this article available in the hopes that it will enlighten others who are considering these questions. Even the creationist accounts that I have read do not adequately treat these issues. At the start, let me clarify that my main concern is not the age of the earth, the moon, or the solar system, but rather the age of life, that is, how long has life existed on earth. Many dating methods seem to give about the same ages on meteorites.

Radioactive decay

As I mentioned, there are exceptions — there is a group of guys who prefer older women, and there is a group of women who is uniquely attractive despite being older. But denying that a significant age difference is an issue is like denying that a typical woman wants to be with a guy who is taller. Many younger men appreciate the wisdom, intelligence, reponsibility and maturity an older woman brings to the relationship.

Search the world’s information, including webpages, images, videos and more. Google has many special features to help you find exactly what you’re looking for.

Try the same thing with balls of hydrogel, and they actually could break free. The spheres bounce animatedly about a hot pan, emitting a piercing, shrieking noise as they do so. Both tricks are due to something called the Leidenfrost effect, which describes the instantaneous vaporization that occurs when water touches a hot surface.

If enough steam is produced, it can be enough to levitate water droplets above a pan, allowing them to race about without evaporating. The same effect occurs in hydrogels, substances that are nearly entirely water, but with just a bit of a polymer to hold them together. This can go on for more than a thousand bounces, and usually only ends when the hydrogel itself ruptures. Even when dropped from a very low height, the balls soon bounce higher, gaining energy from the pan instead of losing it as would be expected.

The phenomenon first came to attention thanks to a Russian YouTube user who tossed a few in his griddle after frying pancakes. This intrigued a group of researchers at Leiden University in the Netherlands, who say the behavior had never been studied before. The process behaves like a tiny steam engine, they say.

100+ Speed Dating Questions to Get to Know Someone

The effects of radiation on genes, including the effect of cancer risk, were recognized much later. In , Hermann Joseph Muller published research showing genetic effects and, in , was awarded the Nobel Prize in Physiology or Medicine for his findings. The committee met in , and After World War II , the increased range and quantity of radioactive substances being handled as a result of military and civil nuclear programmes led to large groups of occupational workers and the public being potentially exposed to harmful levels of ionising radiation.

Dear Twitpic Community – thank you for all the wonderful photos you have taken over the years. We have now placed Twitpic in an archived state.

Contact Author Dating at Its Fastest! Speed dating is a method of dating people utilized to meet multiple people in a short period of time in an effort to find a good match. Icebreakers It can be hard meeting new people so sometimes you need a few questions that will help get you both talking! Icebreaker questions are designed to poke around about certain topics in an effort to open up more conversation.

Are you an animal lover? Have you ever been here before? What is your favorite thing to do around town? Are you more of a morning person or a night person?

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was founded on a simple premise – Everyone should be able to use the internet – when, where and how they wish. It was this seed that eventually grew into the company we are today, employing over 25 people across five different time zones.

When his uncle was besieged by attackers in the building, Phil hid and tried to find help. Stumling upon an experimental new Goblin Armor , Phil also fell into a chamber of the Goblin Formula. Quickly dressing up in the suit, he scared off the hoods. Later on, he decided that the suit and equipment were worth using. Many were unsure of his purpose and motives as they were also curious about this new Goblin on the scene.

He teamed up to battle threats from the Ultraverse. Teaming up with Daredevil , the pair was able to stop Purge.

Speed Dating explained – 328


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