Tuesday, March 27, 2007

WHAT IS MIGHTIER THAN A COCKROACH

A new type of organism discovered in an Arctic tunnel came to life in the lab after being frozen for 32,000 years.

The deep-freeze bacteria could point to new methods of cryogenics, and they are the sort of biology scientists say might exist on Mars and other planets and moons.

The existence of microorganisms in these harsh environments suggests that we might one day discover similar life forms in the glaciers or permafrost of Mars or in the ice crust and oceans of Jupiter’s moon Europa,"

Other microbes have been discovered in similar frigid environments, sometimes clinging to pockets of liquid water in ice packs. And some microbes survive in ice as spores, but they need to be cultured to bring them to life.

NASA described the newfound critter as "the first fully described, validated species ever found alive in ancient ice."

"They immediately started swimming when the ice melted," and the cryopreserved bacteria were instantly ready to eat and multiply.

The creatures found might be able to survive in their suspended state for millions of years.
Just think about it millions of years.



Seen under a microscope, the live bacteria are stained green. Dead ones are red.
Credit: NASA/MSFC/R.Hoover




The Most Extreme Creatures.




Extremophilic microbes are a wild bunch. They can be found thriving in some of the most hostile environments imaginable – swimming in near-boiling water, eating rocks, lounging in sub-zero temperatures, and hanging out where radiation levels rival nuclear reactors.

They’re tougher than duct tape, boldly going where humans dare not and cannot.

Extremophiles are also a multimillion dollar-a-year business – some of them are employed to eat oil and help clean up spills. Others have important applications in medical research. But for many scientists, these hardy microbes are interesting because they suggest the potential for life on other planets.

Do you know what is Mightier than a cockroach?
Toxitolerant organisms can withstand high levels of damaging agents. They can be found swimming around in benzene saturated water or in the core of a nuclear reactor.

One species of bacteria, Deinococcus radiodurans, can withstand a 15,000 gray dose of radiation – 10 grays would kill a human and it takes over 1,000 grays to kill a cockroach. Extraterrestrial life forms would most likely need to possess similar tolerances to radiation, as the atmosphere on other planets, or lack thereof, filters out much less radiation than Earth’s.

You can read more here: 'Live Science'. Enjoy!

12 Comments:

Blogger FutureWorldLeader said...

Amazing!Truly Amazing! Well there goes all those half brained theories saying that there could be no life on other planets. I mean, the universe is composed of hundreds of thousands of galaxies that are millions and millions of miles wide and long. It is truly selfish to say that we are the only existing being in the universe. A little tiny speck in a huge universe. Selfish....

9:05 AM  
Blogger AVIANA said...

as long as they don't come inside my apartment i'm fine....ewww....i don't understand why creatures like roaches and that disgusting thing that they are talking about in the article exist...come on really!!! what is their purpose? ewww

4:09 PM  
Blogger Becky said...

Holy Crap! Makes sense that it would be a damn cockroach that wouldn't die, lol.

8:42 PM  
Blogger EXSENO said...

Hi Becky,
Microwaves don't affect a roach either. I had a crazy friend say he stuck one in the microwave and nothing happened yuk. So I guess when all humans are gone from the face of this earth, the roaches will still be running around. lol

5:21 AM  
Anonymous Anonymous said...

hey ex, read this,

as for microwaving animals, theres a specific reason they won't fry. a fly or an ant or a roach for example has extreme probabilities of surviving. you have to understand how a microwave works.

A microwave oven emits evenly spaced, waves of energy called "standing waves" that are focused on the plate inside your microwave. Only some parts of the of the plate are exposed to these waves and that the inside of the oven is not completely exposed to the waves. This is the reason why the plate was designed to rotate and expose the food to these waves. Inside a microwave oven, the air in the oven is at room temperature. Air doesn't absorb the emitted waves of energy well, so the air in a microwave oven doesn't get hot. Heat is produced due to "molecular friction" when the atoms of the food are excited and "twisted back and forth". Microwave don't remain still in objects and passes through most matter except metal.

Given the size of the roach/fly/insect and the space inside the oven, there is still plenty of space where it can move safely. Even if it gets hit by some of the emitted standing waves, its small surface area means very little energy is absorbed to produce heat. For as long as it keeps on moving and/or not remain in a place where it will be constantly and repetitively bombarded by the emitted energy, it will not be "cooked" inside and it will survive. The situation is similar to moving your finger through a flame. Keep it moving and very little heat is absorbed. Hold it in the flame and your finger will get burned.

The physical size of an object has little to do with its susceptibility to microwave generated heat. In fact, chemists use microwave technology to heat sub-micron particles. The fly's size only comes into play because he is able to navigate between the ‘standing waves’ by sensing the areas where there is high volume heat and low volume heat. You can visualize the patterns of low heat v. high heat by filling a paper plate with marshmallows and putting them in the oven with the turntable turned off. After a few seconds you will see a pattern of melt or blistering on the marshmallows that are exposed while the others seem unaffected. Additionally, the intensity of the waves is greater in some areas than in others. You can see this by putting a pat of butter on the surface of the turntable and another on the bottom of an overturned paper cup. The one on the cup will melt long before the one on the turntable, because the wave intensity is lower near the bottom and sides of the oven than it is at various points elevated just above the turntable (where food heaped on a is plate usually located).

on the other hand, you put a few hundred insects inside and you see them running around in a panic most of them get nuked cuz they cant sense their safety zones anymore

8:48 AM  
Blogger EXSENO said...

Abbas,
Thank you so much, I really enjoyed learning that. You explained it so well that even I could understand it. Mystery solved.
You never cease to amaze me Abbas.

11:33 PM  
Blogger Id it is said...

WOW! A million year life span.
Thanks for sharing.

7:56 AM  
Blogger Asghar Javed said...

Thanks for dropping by and leaving a comment that lead me here. You have very interesting things to say here. Wish to see you around more.

11:08 PM  
Blogger Is it sync'd yet? said...

Did you notice the picture of the bactria looks a lot like the hubble deep space pictures of a pin prick in the sky?

Thinking about this stuff make my brain hurt.


Gnat.
.

12:36 PM  
Blogger EXSENO said...

Gnat of Glass,
No Gnat, I haven't seen that photo.
Thank you for visiting.

5:05 AM  
Anonymous Anonymous said...

they say... cockroach will still exist after a nuclear blast

so i guess trying to kill them with sandals is a complete useless

7:03 AM  
Blogger EXSENO said...

Hi 'Ka,
Thanks for coming by hope you're doing well.

11:50 AM  

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