Jet lag slows hamster brains

When a person travels quickly over long distances, the place may not be the only change. When her bodily rhythms get thrown off, she suffers from jet lag , it’s hard to sleep and eat at the right times in the new location. Humans and all living creatures have an internal biological clock that tells them when to sleep, and when to be awake.
In a new study, scientists tested the effects of jet lag on hamsters — which might seem strange, since we don’t usually think of hamsters as world travelers. But what happens to hamsters may happen to humans, too.
Neurons are important cells in the brain. People are born with many of the neurons they’ll have their whole lives. But these cells also continue to be produced by the hippocampus, a part of the brain that helps people store and sort memories, and can move to other parts of the brain.
The hamsters with jet lag produced only about half as many neurons as before. Plus, the hamsters had trouble with basic learning exercises.
So if you have an hamster I don't think it's a good idea to bring him with you on a trip!!!!!!!!!
helene le roux 6a 30/11/10

robot competition in atlantas

One weekend in April, 20,000 screaming and cheering fans showed up at the Georgia Dome in downtown Atlanta. The stadium is home to the Atlanta Falcons, a professional football team, but these fans weren’t cheering for their favorite football players. They were cheering for robots — and for the high school students who had built them.
Students on more than 300 teams from across the country had brought their homemade robots to Atlanta for the FIRST Robotics Championship. During the competitions, robots played “Breakaway,” a game where they scored points with a ball and climbed over obstacles The FIRST Robotics Championship in Atlanta lasted for only a few days, but the projects last all year. High schools register for the event in the autumn, and during the fall and winter they get ready to build robots.
So I now most of us are a bite young butif you want to be a famous scientist and you believein yourself...... COME WITH ME WE ARE GOING TO BUILD IT!!!!!
                                                                                                                             helene de 24 of november

Active volcano on Venus !?

Incredible,you know that scientist already know of more than 1,000 volcanoes on the surface of Venus, Earth’s “sister” planet. A big question has been: Are they still active?
one of  their evidence comes from a lava flow in the planet’s northern hemisphere. The flow is hotter than the rocks around it, which means the lava might still be cooling off. Venus is a difficult planet to study from Earth because it is surrounded by thick clouds. Telescopes on Earth can’t see through these clouds, so the best information about Venus comes from spacecraft orbiting it.The scientists say the lava flow can’t be very old because if it were, it would have cooled off enough that Magellan wouldn’t have noticed the difference in microwaves.  
Now we just have to wait until that we are sure of the information!!!

the electricity bacteria!!!!!!!!!!!

It's incredible and horrible at the same time!!!!!!!!!ILike a household wire carries electrons from wall socket to appliance, bacteria can conduct electricity along tiny wire-like appendages

A community of bacteria  could act as a slimy fuel cell, digesting organic matter and churning out electricity.  the microbes might   gobble up toxic marine sediments or process sewage at waste treatment plants.Biologists first noticed that deep-sea bacteria grew the curious wires when placed in environments with little oxygen. Those bacteria   share the gas — their way of breathing — by connecting their wires, as if a crowded room of people could breathe from an open window simply by linking hands.So be carfull and if you see a thing litle bite like this image .....Run away  to hide in a scientifique lab!!!!!!!!!!!!!!!!!


                                                                     helene le roux         3/11/2010

Prehistoric air travel

To travel 10,000 miles through the air, you have to take an airplane. Or two. Maybe three. (It would be like flying from New York to Sydney.) Birds can alsoe do it — though they usually need at least one layover on the wayBut for a certain flying reptile that lived 70 million years ago, 10,000 miles probably wasn’t too far to fly in one trip. Ther was four giant types of these beasts, called pterosaurs( they were living at the same time that dinosaurs  and they were ten times biger)  which might have been able to go the distance in a single flight. Scientists who study fossils say these beasts    flew through the air on 30-foot-long wings and that the biggest type of these creatures weighed about 5500 pounds, which is more than an ostrich.  In other words, if you take a time machine back at least 65 million years and want to see a pterosaur, you probably won’t have much trouble. Just look for the nearest giant, flying reptile with a wingspan as wide as a backyard swimming pool. So see you  in the past!

                                                                                                                     from helene le roux

                                                                                                                     did the 10/27/2010

You imagine!Some were in NewYork :on the seventh floor of a building in downtown San Francisco, upstairs from the famous jewelry store Tiffany & Co ,more exactly we can find.plenty of gems and diamons that a compagni created in there labatory.Usually, gem stones form below Earth’s surface. They can stay on hearth for many millions  years. But those scientists are creating gemstones on their own. They do this by mimicking the processes that occur underground or by coming up with entirely new processes. Lab-made gems have the same appearance and  structures that the natural ones.Yes you will say that it is only usefull for jellerys but it is not true because , they can be used to make tools, such as lasers and drills. Lab-made diamonds could even help scientists improve electronic devices or detect dangerous bacteria in drinking water.

action video games

In action video games, you have to kill mean monsters, fight the bad guys  — which come at you from every side. You have to pass all the levels, collect all the right objects, watch every corner of every room and listen carefully. You never know where trouble is , but you know it’s out there somewhere.                                   Some scientifiques find out that they were something else going in the brain of action game players :THEY ARE GETTING BETTER AT USING VISUAL AND AUDITORY CUES!!!!!yes they have to do a lot of quick decisions and not just decisions that have to do with the imaginary world of the video game.And i have a last  thing to say to the action video  game players : when your mum tells you stop playing to play does stupid games you better do an intelligent thing.you just anser her that it is an intelligent thing and explain her all what i just tat you.

spray on fashion

http://www.dogonews.com/2010/9/19/need-a-new-shirt-spray-it-on
So cool: imagine that every morning you could wake up YOU DON'T HAVE TO CHOOSE YOUR CLOTHES, BECAUSE YOU CAN DESIGN THEME!!! You just have to spray you're self  wife wonderful  colors and design you're clothes the night when you come back from school you just reap out your clothes and trow them into the garbage .And if you go on a trip you don't need ten pounds of clothing you just put six little spray and your done!IT is not only a dream it exists!!!A Spanish  scientific coaled Manuel Torres just invented  this cool spray  he is collaborating with an English  professor of particle technology  at London imperial college. The spray contains short fibers and polymers mixed with a solvent that helps turn the closing into a liquid form.

science goles

I want to work on physiques  I LOVE  IT
And i want to work with a partener