All right guys, one more time. If everybody manages to get a comment about an article up here by Monday morning, then I'll give everybody no homework on Monday.
MARS CRATERS HAVE SOME SYMBOLS OF POSIBLE WATER AND ICE IN MARS!!
Water and ice have left their marks on the Martian surface, from pits and ridges to winding channels and gullies.Evidence for past water or water ice on Mars has accumulated rapidly in the past decade. A new study, which will be published in the journal Icarus, paints a scientific picture of flowing rivers and glaciers that likely shaped the topography of the planet's large craters. "If you look at all of these [features] individually, it's not necessarily strong evidence that there was ice and/or water flowing on the surface," said lead researcher Daniel Berman of the Planetary Science Institute in Arizona. "But if you look at this suite of features you see throughout these regions, what you have is a story of the deposition of a fair quantity of ice most likely during this period of high obliquity, several million years ago, which has subsequently begun to melt and flow down the crater walls and across their floors."
This subject is important because it shows lots of symbols that ice and water is in other planets too. Which means life is capable there too. This exploration is really important because it may help us to for the first time in the history of the humankind, to make a space camps. This would also help and improve our exploration through the future.
When you're sick, you might take medications to help you fight off infection, lower a fever or clear a stuffy nose. But once those drugs leave your body, chances are they will find their way into nearby lakes, ponds, rivers and streams. Drugs end up in a body of water because you excrete them in urine. When you flush a out drugs. Some people even flush unused drugs down the toilet, only adding to the problem. While medications are meant to help a person feel better, they're not good for wildlife. Over the past several years, scientists have begun to test how common drugs are in freshwater ecosystems. Researchers also are starting to learn more about how medications meant for humans affect the animals that accidentally ingest the drugs. Recently, several scientists tested how a group of drugs called antidepressants affects freshwater fish. For many people with an illness called depression, antidepressants can be lifesavers. People with depression may feel sad or anxious for extremely long periods of time, lose interest in activities they once enjoyed and have difficulty sleeping or concentrating. Antidepressants help improve these symptoms for some people. Several years ago, researchers discovered that some species of fish living near wastewater treatment plants had antidepressants in their brains. "Pretty much any water sample in the vicinity of a wastewater treatment plant will test positive for some group of antidepressants," says chemist Melissa Schultz, of the College of Wooster in Ohio. This finding inspired a number of scientists to learn how these drugs affect fish and other wildlife. In their experiments, researchers exposed species of fish in a laboratory to different brands of antidepressants. Then, the scientists tested the fishes’ responses to a number of things, such as the cues predators make or the appearance of prey animals. The researchers found that antidepressants affect toilet, the wastewater travels to a treatment plant. There, bacteria and other material are filtered out and the cleaned water is returned to natural bodies of water. The trouble is, wastewater treatment plants don't filter fish species in numerous ways, from diminishing their response to predators to slowing down their prey-hunting techniques. One unexpected result even showed that a type of antidepressant called fluoxetine acts like estrogen, a primarily female hormone, when in the bodies of adult male fathead minnows. Fluoxetine, sold under the brand name Prozac, caused these male minnows to produce an egg protein normally made only by females. In addition, males exposed to fluoxetine did not make the bright colors and facial bumps usually used to attract mates. More testing needs to be done to determine whether these changes affect minnows' ability to mate. It's important to keep in mind that in any lake or stream, fish and other organisms aren't just exposed to antidepressants, Schultz says. Antibiotics, anti-inflammatories, and even caffeine all make their way through water treatment plants and back into the environment. What happens to fish and other animals when they're exposed to all of these drugs in combination? For now, nobody knows, Schultz says – leaving the door open to many future research questions.
----Summary/Opinion---
This basically says that the fish are becoming infected by drugs being washed down the toiletts. This is bad for the fish because it messes up their entire way of life. It’s messes up the way they eat and the way they mate.
I think they need to find a way to get the drugs out of the water too. If they can get the bacteria and all the other yucky stuff out then they should be able to find a way to get some of the drugs out so that theres not more being pumped into the freshwater..
MARS' CRATERS HAVE SOME EXPLANATION OF WATER AND ICE!!!
Enigmatic 'Meridiani Planum' deposits on Mars -- deep salty areas found by NASA's Opportunity rover -- have attracted several theories to explain their existence in recent years.
Add another one to the list: the Martian deposits could be remnants of a massive ancient ice-field, a new study suggests.
This new icy theory better explains some of the odd signatures of the deposits, its authors say. The finding, detailed in the Feb. 15 online version of the journal Nature Geoscience, "advances a new idea for how the sedimentology of Mars developed," said study co-author Paul Niles of NASA's Johnson Space Center in Houston.
This article is very important because, it let us know more about mars' surface and craters. This will also make the astronomers believe that water also exist in other neighboring planet.
Celery has a certain something, as most chefs will tell you. Even though the vegetable's flavor is mild, it's an ingredient in a variety of soup recipes. To figure out how celery has gained its popularity among cooks, Japanese scientists studied chemical compounds that give the vegetable its smell. In previous experiments, the researchers had zeroed in on a collection of these compounds, called phthalides. For their most recent experiment, Kikue Kubota and colleagues added celery to a pot of water and then heated it. The team collected vapors that boiled off, leaving behind the solid parts of the vegetable. They added the solids to one pot of chicken broth. They cooled the vaporous compounds, which were now a liquid, and put them in a second pot. In both pots, the scientists added such a small amount of each substance that no one could possibly smell the celery in them. I agree because celery is acid, people use it in their food life almost every day, specially snacks because it tastes really good in hamburgers, paninis, and sandwiches. The acid in it is not good for our hearth but people should not abuse eating it. This article is important because it explains where the celery comes from, people must not eat it every day because of it chemicals and it’s not good for the hearth.
by driss today i will talk about car's devlopement.The first vehicles powered by electricity were introduced in the 1890's. They were developed on a large scale in France and the United Kingdom. In 1899, the La Jamais Contente, a racing car powered by electricity and designed by Camille Jenatzy, set the world record for being the fastest vehicle on land by travelling at a speed of 68 miles per hour.
In 1891, AL Ryker built an electric tricycle and William Morrison built a wagon that could accommodate six passengers. In 1897, the Electric Carriage and Wagon Company, based in Philadelphia, built a fleet of taxicabs that plied across New York City. In 1902, Woods invented Phaeton and then followed up that invention in 1916 a hybrid car that had both an internal combustion engine as well as an electric motor. The improvised versions of the earliest prototypes of electric cars were invented in the subsequent years.
Between the 1930's and 1960's, electric cars were gradually on the decline and the era of such vehicles that ran on alternative sources of fuel had begun. In the 1990's several models of electric vehicles were introduced which had an alternative current motor and ran on sodium sulphur or lithium-ion batteries.
by driss: today in my essay i will talk about climate change in the past few years. Scientific experts agree that the Earth’s climate is changing. Climate change, more commonly known as global warming, is caused by the emission of heat trapping gases produced by vehicles, power plants, industrial processes and deforestation. As these gases build up, they act like a big blanket, over-heating the planet and threatening our health, our economy and our environment.
Research shows that the world has now become hotter than at any time during the past 1000 years. Climate models that project future conditions show that global warming will continue if emissions of heat-trapping gases continue to increase. If we dont be carefull with global warming the earth could have serious problem
6 comments:
MARS CRATERS HAVE SOME SYMBOLS OF POSIBLE WATER AND ICE IN MARS!!
Water and ice have left their marks on the Martian surface, from pits and ridges to winding channels and gullies.Evidence for past water or water ice on Mars has accumulated rapidly in the past decade. A new study, which will be published in the journal Icarus, paints a scientific picture of flowing rivers and glaciers that likely shaped the topography of the planet's large craters. "If you look at all of these [features] individually, it's not necessarily strong evidence that there was ice and/or water flowing on the surface," said lead researcher Daniel Berman of the Planetary Science Institute in Arizona. "But if you look at this suite of features you see throughout these regions, what you have is a story of the deposition of a fair quantity of ice most likely during this period of high obliquity, several million years ago, which has subsequently begun to melt and flow down the crater walls and across their floors."
This subject is important because it shows lots of symbols that ice and water is in other planets too. Which means life is capable there too. This exploration is really important because it may help us to for the first time in the history of the humankind, to make a space camps. This would also help and improve our exploration through the future.
DONE BY: Mashaal Bazara
When you're sick, you might take medications to help you fight off infection, lower a fever or clear a stuffy nose. But once those drugs leave your body, chances are they will find their way into nearby lakes, ponds, rivers and streams.
Drugs end up in a body of water because you excrete them in urine. When you flush a out drugs. Some people even flush unused drugs down the toilet, only adding to the problem.
While medications are meant to help a person feel better, they're not good for wildlife. Over the past several years, scientists have begun to test how common drugs are in freshwater ecosystems. Researchers also are starting to learn more about how medications meant for humans affect the animals that accidentally ingest the drugs.
Recently, several scientists tested how a group of drugs called antidepressants affects freshwater fish. For many people with an illness called depression, antidepressants can be lifesavers. People with depression may feel sad or anxious for extremely long periods of time, lose interest in activities they once enjoyed and have difficulty sleeping or concentrating. Antidepressants help improve these symptoms for some people.
Several years ago, researchers discovered that some species of fish living near wastewater treatment plants had antidepressants in their brains. "Pretty much any water sample in the vicinity of a wastewater treatment plant will test positive for some group of antidepressants," says chemist Melissa Schultz, of the College of Wooster in Ohio. This finding inspired a number of scientists to learn how these drugs affect fish and other wildlife.
In their experiments, researchers exposed species of fish in a laboratory to different brands of antidepressants. Then, the scientists tested the fishes’ responses to a number of things, such as the cues predators make or the appearance of prey animals.
The researchers found that antidepressants affect toilet, the wastewater travels to a treatment plant. There, bacteria and other material are filtered out and the cleaned water is returned to natural bodies of water. The trouble is, wastewater treatment plants don't filter fish species in numerous ways, from diminishing their response to predators to slowing down their prey-hunting techniques. One unexpected result even showed that a type of antidepressant called fluoxetine acts like estrogen, a primarily female hormone, when in the bodies of adult male fathead minnows.
Fluoxetine, sold under the brand name Prozac, caused these male minnows to produce an egg protein normally made only by females. In addition, males exposed to fluoxetine did not make the bright colors and facial bumps usually used to attract mates. More testing needs to be done to determine whether these changes affect minnows' ability to mate.
It's important to keep in mind that in any lake or stream, fish and other organisms aren't just exposed to antidepressants, Schultz says. Antibiotics, anti-inflammatories, and even caffeine all make their way through water treatment plants and back into the environment. What happens to fish and other animals when they're exposed to all of these drugs in combination? For now, nobody knows, Schultz says – leaving the door open to many future research questions.
----Summary/Opinion---
This basically says that the fish are becoming infected by drugs being washed down the toiletts. This is bad for the fish because it messes up their entire way of life. It’s messes up the way they eat and the way they mate.
I think they need to find a way to get the drugs out of the water too. If they can get the bacteria and all the other yucky stuff out then they should be able to find a way to get some of the drugs out so that theres not more being pumped into the freshwater..
--abbie
MARS' CRATERS HAVE SOME EXPLANATION OF WATER AND ICE!!!
Enigmatic 'Meridiani Planum' deposits on Mars -- deep salty areas found by NASA's Opportunity rover -- have attracted several theories to explain their existence in recent years.
Add another one to the list: the Martian deposits could be remnants of a massive ancient ice-field, a new study suggests.
This new icy theory better explains some of the odd signatures of the deposits, its authors say. The finding, detailed in the Feb. 15 online version of the journal Nature Geoscience, "advances a new idea for how the sedimentology of Mars developed," said study co-author Paul Niles of NASA's Johnson Space Center in Houston.
This article is very important because, it let us know more about mars' surface and craters. This will also make the astronomers believe that water also exist in other neighboring planet.
DONE BY: Masha'al Bazara
Celery in our food life:
Celery has a certain something, as most chefs will tell you. Even though the vegetable's flavor is mild, it's an ingredient in a variety of soup recipes.
To figure out how celery has gained its popularity among cooks, Japanese scientists studied chemical compounds that give the vegetable its smell. In previous experiments, the researchers had zeroed in on a collection of these compounds, called phthalides.
For their most recent experiment, Kikue Kubota and colleagues added celery to a pot of water and then heated it. The team collected vapors that boiled off, leaving behind the solid parts of the vegetable. They added the solids to one pot of chicken broth. They cooled the vaporous compounds, which were now a liquid, and put them in a second pot. In both pots, the scientists added such a small amount of each substance that no one could possibly smell the celery in them.
I agree because celery is acid, people use it in their food life almost every day, specially snacks because it tastes really good in hamburgers, paninis, and sandwiches. The acid in it is not good for our hearth but people should not abuse eating it.
This article is important because it explains where the celery comes from, people must not eat it every day because of it chemicals and it’s not good for the hearth.
by driss
today i will talk about car's devlopement.The first vehicles powered by electricity were introduced in the 1890's. They were developed on a large scale in France and the United Kingdom. In 1899, the La Jamais Contente, a racing car powered by electricity and designed by Camille Jenatzy, set the world record for being the fastest vehicle on land by travelling at a speed of 68 miles per hour.
In 1891, AL Ryker built an electric tricycle and William Morrison built a wagon that could accommodate six passengers. In 1897, the Electric Carriage and Wagon Company, based in Philadelphia, built a fleet of taxicabs that plied across New York City. In 1902, Woods invented Phaeton and then followed up that invention in 1916 a hybrid car that had both an internal combustion engine as well as an electric motor. The improvised versions of the earliest prototypes of electric cars were invented in the subsequent years.
Between the 1930's and 1960's, electric cars were gradually on the decline and the era of such vehicles that ran on alternative sources of fuel had begun. In the 1990's several models of electric vehicles were introduced which had an alternative current motor and ran on sodium sulphur or lithium-ion batteries.
by driss:
today in my essay i will talk about climate change in the past few years. Scientific experts agree that the Earth’s climate is changing. Climate change, more commonly known as global warming, is caused by the emission of heat trapping gases produced by vehicles, power plants, industrial processes and deforestation. As these gases build up, they act like a big blanket, over-heating the planet and threatening our health, our economy and our environment.
Research shows that the world has now become hotter than at any time during the past 1000 years. Climate models that project future conditions show that global warming will continue if emissions of heat-trapping gases continue to increase.
If we dont be carefull with global warming the earth could have serious problem
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