Archive for the ‘nature’ Category

Check out how your eyes can trick you

Sunday, May 25th, 2008

This amazing gravity hill is actually a simple phenomenon were your eyes make you think the car is going up while it’s going down. The trick it’s at the surroundings that make you think that the car is going up while it’s going down.

Well this is a living proof that what we see isn’t the reality but instead our perception of reality. Our senses trick us every day so don’t forget not to believe everything you perceive.

Have fun with the video

Car Climbing A Slope With Engines Off? - The funniest videos clips are here

Retracted green light on GM crops feeds suspicions

Tuesday, May 13th, 2008
English:Image via Wikipedia

Like if we haven’t learned enough with the past from playing God men still wants to do it in the search of high profits.

Seems like we haven’t learned enough from our previous experience from playing God. Now we play with food modifying its genetic structure in order to obtain higher profits. Just now we start detecting problems like unstable proliferation of some crops and destruction of the natural genetic structure of the old ones through cross polinization. Also, GM crops can result in people and animals developing resistance to certain types of antibiotics which are used to treat diseases.

Worlds leaders are starting to take more attention into the matter because of thousands of complains and petitions made by Greenpeace supporters and negative observations from the World Health Organization (WHO), the Institute Pasteur and the European Medicines Agency (EMA).

Lately the European Food Safety Authority (EFSA) has had a remarkable action when it retracted the green light for a new type of GM potato and two types of GM maize to be grown. Though it was a good step in denying the previous given green light to the new GM crops of potato and maize how do we know that EFSA didn’t made the same mistake before and we are producing crops that harm the human being and the environment? The European commission has ordered a second investigation on these crops but shouldn’t a second investigation be done to all GM crops since EFSA got it wrong this time?

These crops may deliver health problems that might only be noticeable a few generations after, isn’t this a cause for concern too?

Another fact is that most probably the GM crops that produce their own insecticides and other GM crops may have a negative impact on the environment and because of that the EFSA should have rejected the crops right away since we know so little about the future problems that it may bring us.

The jelly is suspected to be source of all animals

Wednesday, April 16th, 2008

The jellyfish are marine invertebrates that can be found in any ocean of the world and even in some fresh waters.

Contrary to what people think the jelly is not a fish but an organism that belongs to the class Scyphozoa.

One special jelly is creating a lot of turbulence in the science world (the one in the photo) because it’s shaking some beliefs.

Through a massive analysis of the evolutionary biology of animals it has been suggested that this jellyfish might just be the direct progeny of the first animal on Earth making it the earliest member of the kingdom that includes insects, fish, reptiles, birds, mammals (including humans) and many more or all the ones that belong to the kingdom Animalia.

Normally experts were supposing the sponge to be the first true animal because it is the simplest known, lacking in distinct tissues and nervous system which are two of the jelly characteristics.

This discovery is a blow to the mindset that evolution automatically means increasing complexity, researchers say.

This completely new and amazing discovery to the world of science has been published by researchers in the 10 of April issue of Nature.

Two extinct plants discovered in Australia

Monday, April 14th, 2008
Queensland cities, towns, settlements and road networkImage via Wikipedia

These days it’s amazing to ear about finding plants that are thought to be extinct since most of the news just report cases of disappearing species.
This time at Cape York, far northern Australia, two thought to be extinct plants were found. The Rhaphidospora cavernarum which is a one and a half meters high herb thought to be lost since 1873 and the Teucrium ajugaceum last seen in 1891.
These findings were made thanks to a report produced from research by more than 100 academic and government experts.
Besides the finding of the thought to be extinct plants the report also stated that in Queensland every year more than 50 new plants are reported to appear and that there are more than 12,000 native plant species known to science in the state making Queensland a “well of life”.

Smallest known Black Hole discovered by NASA scientists

Saturday, April 5th, 2008
NASA sealImage from Wikipedia

Has you might imagine there are several sizes of black holes and this one besides being the smallest ever found still digests everything around him because of the huge gravitational force that even draws light into it.
The previous record holder would weight 6.3 Suns which isn’t much when we know black holes weighting up to billions times the weight of our Sun.
NASA scientists Nikolai Shaposhnikov and Lev Titarchuk identified this black hole which is the smallest (15 miles across) and the lightest known black hole in the universe weighting only 3.8 of our suns.
This discovery was made with the help of NASA’s Rossi X-ray Timing Explorer satellite that was launched in late 1995.
This flyweight XTE J1650 which exists outside our star system was formed in the center of a dying star when she ran out of fuel and collapsed due to its own gravity into a black hole. As well as being the smallest known black hole scientist also think that it must be very close of being the smallest possible size for a black hole because if after the star collapses the result is less than 3 times the weight of our sun, instead of becoming a black hole it becomes a called neutron star.
Amazing how this powerful and fearful phenomenon of the universe only measures 15 miles that is the size of a city.

illustration of a black hole

Photo above: The lowest-mass known black hole belongs to a binary system named XTE J1650-500. The black hole has about 3.8 times the mass of our sun, and is orbited by a companion star, as depicted in this illustration. Credit: NASA/CXC/A. Hobar

NASA\'s Rossi X-ray Timing Explorer satellite

The measurement of the black hole’s mass is due to high-precision timing observations made by NASA’s Rossi X-ray Timing Explorer satellite, shown here prior to launch. Credit: NASA

Prehistoric crocodile found in Brazil’s coast

Thursday, March 27th, 2008

croc.jpg

Brazilian palenontologists discovered a fossil in the coastal Mina Poty area at northeastern Brazil of a new marine crocodile specie that is 62 million years old which means that this reptile that belonged to the Dynosauridae group survived the extinction of dinosaurs 65 million years ago.

This specie was named Guarinisuchus munizi which means “Sea Warrior”. The specie got the name Guarinisuchus that means warrior because it survived the dinosaur extinction and Munizi as a tribute to the Brazilian paleontologist Barro Muniz.

Seems like dinosaurs didn’t all disappeared 65 million years ago after all…

Photo: REUTERS/Federal University/Handout

 

What may have killed the dinosaurs?

Friday, March 21st, 2008

basalt-hills.jpg

The explanation to the dinosaurs and other species extinctions still troubles today’s researchers.

There are two theories that explain the dinosaurs extinction. One is the theory that evolves a meteorite impact that happens 65 million years ago making the atmosphere not so suitable for life. Other is the one that comes from gigantic volcano eruptions that released large amount of sulfur into the atmosphere causing devastating repercussions in the Earth climate.

Researchers say that the series of eruptions that formed the Deccan Traps at India released high amounts of both chlorine and sulfur that probably made extensive changes in the environment. After recent development in the research with new findings proving that the Deccan Traps released enough amounts of sulfur and chlorine to make a serious environmental impact 65 millions years ago, more and more researchers believe now that the volcanic theory is the right one.

Besides explaining the dinosaur extinction, this theory also explains other extinctions connecting them with the formation of the huge flood basalt provinces in the Deccan Traps. The emission of these gases into the atmosphere must have originated a widespread acid rain and aerosols of sulfuric acid causing the Earth surface cool down.

Font: Reuters

Photo: Reuters

Greenpeace has made a map with the infractions made to the environment

Sunday, March 9th, 2008

Greenpeace has made a map with the infractions made to the environment accounted by civilians.

The Greenpeace organization at Spain launched a site were people share photos about infractions made to the environment.

In this site you will find photos strategically positioned over the map of Spain with info about the infractions and authors.

The idea is to make the general public more concerned and informed about the state of the environment in their area.

Other countries are expected to begin using this idea too but if you want to take a peek at the Spanish environmental situation just redirect to: http://fotodenuncia.greenpeace.es/

All you need is love!

Saturday, March 8th, 2008

All you need is love!

The Beatles were right, all you need is love! I’m going to show you a very special and cute video I found. Check the cats and you’ll see that with love you can get anywhere!

Remember: all you need is love.

The daffodil season in the U.K…

Saturday, March 8th, 2008

The daffodil season in the U.K…

We are in the daffodil season in the U.K. Daffodils are plants that give flowers also in the winter and have the botanic name of Narcissus.

The name narcissus as two derivations: One comes from the Greek mythology and is about Narcissus, the men that became so obsess with is own reflection that as he kneeled and gazed into a pool of water, he fell and drowned. The legend continues that the Narcissus plant first sprang from where he died. The other derivation is that the plant is named due to its narcotic proprieties (narkoa).

They are cultivated, picked, refrigerated to last longer and commercialized because people seem to like this plant…

Here are some lovely photos of the fields at Cornwall. Hope you delight yourself with this scenery.