Archive | Science

Man Grows Back Finger

Posted on 28 March 2008

Man regrows finger that was accidentally cut off in model plane propeller. The man used a regenerative powder given to him by his brother, a research scientist.

That powder is a substance made from pig bladders called extracellular matrix. It is a mix of protein and connective tissue surgeons often use to repair tendons and it holds some of the secrets behind the emerging new science of regenerative medicine.

“It tells the body, start that process of tissue regrowth,” said Badylak.

Badlayk is one of the many scientists who now believe every tissue in the body has cells which are capable of regeneration. All scientists have to do is find enough of those cells and “direct” them to grow.

“Somehow the matrix summons the cells and tell them what to do,” Badylak explained. “It helps instruct them in terms of where they need to go, how they need to differentiate – should I become a blood vessel, a nerve, a muscle cell or whatever.”

[via CBS News]

Comments (0)

Tags: ,

Is Global Warming A Hoax?

Posted on 19 March 2008

Thousands of scientific ocean robots suggest that ocean temperature has not warmed up at all over the past four or five years

Everybody from Al Gore to Arnold Schwarzenegger have preached about the effects of global warming but is the planet actually warming? We know that the global average air temperature near the Earth’s surface rose about 1-2 degrees during the last hundred years but what does that equate to in the grand scheme of the planet? A hundred years is a small fraction in the billions of years the earth has been around. Instead of just measuring the air temperature, scientist have been monitoring the oceans for changes, but what they have found is to the contrary.

This is puzzling in part because here on the surface of the Earth, the years since 2003 have been some of the hottest on record. But Josh Willis at NASA’s Jet Propulsion Laboratory says the oceans are what really matter when it comes to global warming.

In fact, 80 percent to 90 percent of global warming involves heating up ocean waters. They hold much more heat than the atmosphere can. So Willis has been studying the ocean with a fleet of robotic instruments called the Argo system. The buoys can dive 3,000 feet down and measure ocean temperature. Since the system was fully deployed in 2003, it has recorded no warming of the global oceans.

So if these ocean robots are actually giving accurate data, then where is all the heat going?

Kevin Trenberth at the National Center for Atmospheric Research says it’s probably going back out into space. The Earth has a number of natural thermostats, including clouds, which can either trap heat and turn up the temperature, or reflect sunlight and help cool the planet.

In actuality, the scientist really can’t explain this missing heat at all. Is it too soon to tell if global warming is real? There is no disputing that what people do effects the environment. China and India build coal-burning plants like they are going out of style. We are too dependent on foreign oil. The list could go on and on, but are you really sold on global warming? Is it possible that we humans have done so much damage in the past 50 years? Or is the current rise in temperatures just a natural blip that has occurred many other times in the history of the Earth, we just weren’t around to notice.

[via NPR]

Comments (0)

Tags: ,

Finally, the Jet Pack has Arrived!

Posted on 30 January 2008

Forget the fact that we have waited our whole lives for this futuristic flight, the Thunderpack Jet Pack is here and ready for take off. Thunderbolt Aerosystems’ wants to bring the jet pack to the masses. Can you imagine the sky rage trying to get to work!

Comments (0)

Tags: , , , ,

Asteroid on Collision Course with Mars

Posted on 21 December 2007

An asteroid, known as 2007 WD5, is on course to hit Mars near the end of January. The asteroid, was discovered in November and scientist had the odds of it striking the red planet at 350 to 1, but recently upgraded those odds to 75 to 1.

“We know that it’s going to fly by Mars and most likely going to miss, but there’s a possibility of an impact,” he said.Mars asteroid

If the asteroid does smash into Mars, it will probably hit near the equator close to where the rover Opportunity has been exploring the Martian plains since 2004. The robot is not in danger because it lies outside the impact zone. Speeding at 8 miles a second, a collision would carve a hole the size of the famed Meteor Crater in Arizona.

As long as it’s not hitting Earth, this flying rock stuff is kind of cool.

[via: CNN] [Photo Credit: NASA/JPL/University of Arizona]

Comments (0)

Anti Gravity for Real

Posted on 19 March 2007

As usually, I have no clue how this stuff works. But it’s got floating, spinning gimzos and therefore I’m mesmorized. It’s probably not really as cool as it sounds. I’m guessing just a couple perfectly positioned magnetic fields? Cool video anyway.

Comments (2)