Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Banana Skin Gives New Hope for Cancer Research

Bright blue rings found under ultraviolet light on the peels of ripe bananas gives new improvement in studying how organisms cleanse themselves of dying cells, this is announced by US and Austria scientists.


Nicholas Turro of Columbia University in New York, Bernhard Krautler of the Institute of Organic Chemistry at the University of Innsbruck, Austria, found that when chlorophyll ages and begins to disintegrate in banana peels, it does not change color in the spectrum of visible light, instead, it glows blue when observed under ultraviolet light.
Left picture is banana in daylight while right picture is banana that glows blue in UV light

Chlorophyll is the molecule that allows life on Earth. It is the integral part that makes plant can take a mixture of carbon dioxide, water and sunlight so they can be converted to oxygen, sugars and starches. The chlorophyll break down is a major contribution to the color changes in fall leaves, and also ripening apples and pears. But in ripening and rotting bananas, chlorophyll fades to be unique fades color, causing yellow bananas to glow blue when observed under ultraviolet light.

Light-blue glowing rings surround the dying cells on the skin of a ripe banana

Because the glowing molecules occur in close proximity to dying tissue, they promise for good sign for further study of the way organisms cleanse themselves of dying cells, or even programmed cell death as in cancer cells. And we hope it also gives good sign for cancer research in human body.

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Military Night-Vision Goggles Will be applied for Commercial Flight

Pilots will have difficulties when flying airplanes in night or few light conditions. The pilot will not able to see clearly and this will harm airplane safety as well as passengers and also flight line circumstances. Today, researches in US Federal Aviation Administration are developing military-use-only night-vision goggles for civilian pilots.

The goggles are made by Nivisys, a manufacturer of thermal and night-vision equipment, have feature high-resolution, lightweight and easy-to-operate. The goggles operate from a wavelength of approximately 600 to 900 nm. Vision angle is 40 degree, focus distance start from 25 cm to infinity with one magnification.

Night Vision Goggles

An advantage of this device is that the goggles can be configured according to the pilot's face because it is easy to adjust to center of the pilot's eyes, 25 mm downward and upward and tilt angle to 10 degree that make the pilot to easily see airplane instrument panel when using the goggles.

NIght Vision Goggles
Night-Vision Goggle made by Nivisys

The weight is only 514 gram make it very light thanks to aluminum material. Beside it, the goggles are using 2 AA batteries that last up to 40 hours.

We hope the goggles can make commercial flight airplane to be safer than before.

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The Moon is Getting Away from The Earth 3.8cm Every Year

The moon now is getting away from the earth at 3.8cm a year. But don't worry, that doesn't give affect to distance change from moon to earth at 385.000 km for long time.



How researches know about distance change of moon to earth? The method is by beaming laser from earth to reflector in the moon, then they count how long laser takes to reflect measured at a time laser is beaming.

Detecting moon movement has been possible because of photonics technology and Apollo experiment that still running. For 40 years, scientists have periodically pinged laser beam and measuring ping time.

The result, if you want to know, is 2.5 seconds, varying because moon's elliptical orbit results constantly changing distance. From the precise measurements, researchers have confirmed not only key tenet of Einstein's theory of relativity, but also have shown that the force of gravity is very stable and have discovered that the moon probably has a liquid core.

For almost 20 years from 1960's, astronomers measured distance from moon to earth by beaming laser from telescope of McDonald Observatory to retroreflector placed on the moon
Measuring the distance from earth to the moon is dependent upon retroreflector left on the moon surface by Apollo astronauts and by two Russian robot vehicles. Researches on earth beam laser pulse to reflector. The retroreflector sends the laser pulse back to earth. Usually only a few photons make it back and detected to provide the total trip time. That and the speed of light results the distance to the moon with accuracy of a few centimeters depending on the equipment.

Today, measuring moon distance to earth is done by observatories in US, New Mexico and France.

Source: Photonics.com

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ReStart; Rehabilitation Center for Internet & Video Game Addicts

Internet and video game addictions have become big problem in developing countries. There are more young people who addict to technology until they feel antipathy to their surroundings.

But don't worry, now there is treatment center for addicted persons to internet and video games named reStart. Unfortunately, the institute is only in United States located in a village as big as Washington, cold place and no technology available to avoid patients to get near to technology world.

The institute is founded by Hilarie Cash, a psychotherapy and Cosette Rae, a social therapist. They assumed addiction to internet and video game have been big problem for last decades when technology becomes an important part of human life. It becomes worse because many children grow up with technology too earlier than they should. If they are let to spend much time for virtual world or playing video games, their physical and mental development become unbalance.

Type of game addicts usually make them have less ability to socialize and confident. Games are designed to make people addicted, and addicted people are persons who think that real world is painful or scary. Computer and video games often become fugitive for growing children to avoid difficult situation they face at their age. Even according to reStart research, children who spend too much time in front of computer screen or video game can grow up to be persons who have difficulty to make adaptation socially.

ReStart designs rehabilitation programs that consist of socialization skill to other people such as how to start conversation and reading other body language. ReStart program also re-program their daily activities like take a bath, eating, and other house work. They who become reStart patients are also given guideline about how to make perfect time to make a date with their girlfriends.

So, after we know about internet and video games jeopardy to growing children, now it's time to us to watch out in order to avoid them the bad impacts. Don't let your children and brothers come to rehabilitation of virtual world addiction as they have addiction to drugs. Watch them out!

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Interesting and Amazing Facts about Our Circumstance

Many interesting facts in our life that may not be realized by us, some of them are very unique even surprised us. Here is interesting and unique facts about earth, human, and our circumstance. I pick them up from many sources such as magazines, books, TV and internet. Enjoy it!

  1. Human hand nails grow faster than foot nails
  2. Human brain consists of 80% water
  3. One cocoon of worm can produce 300 – 400 meter of silk thread
  4. When sleeping, a dolphin opens one eye
  5. Gorilla sleeps about 14 hours every day
  6. Survey in USA stated that almost all children spends an half billion dollar every year to buy bubble-gum
  7. Ants never sleep
  8. A cat can produces more than 100 types of sounds
  9. Giraffe never sleeps more than 20 minute a day
  10. A horse can defecate up to 14 times a day
  11. In 13th centaury, strawberry is used as medicine in Rome
  12. Jaw bone is the hardest bone in human body
  13. Lemon contains sugar more than strawberry
  14. Lemon & Strawberry
  15. There are about one million kinds of bacteria in one liter of water
  16. One dairy cattle can produce 36 liter of milk everyday Enough to drink by 100 people
  17. Giraffes tongue length is 53,5cm, so they can clean their ears using their tongue
  18. Strawberry is the only fruit that its seed is outside
  19. Chicken sound is different depends on its enemy
  20. Every day, a tiger can eat up to 30kg meat
  21. A new born squirrel baby is only as big as a honey
  22. Everyone has different tongue sketch, same with fingerprint
  23. From all germs in our mouth, there are an half of them live in tongue surface
  24. There are 300 types of germs that gnaw our teeth
  25. Everyone produces saliva almost 1 liter every day
  26. When smiling, there are 17 muscles moving in our face While when sullen, there are 42 muscles moving
  27. Ostrich’s eyeball is bigger than its brain
  28. Our eyeball size never changes after we are born
  29. Besides its feather, tiger’s skin is also stripe
  30. We have 300 bones when we are a baby, after growing up there is only 206 left There are bones that unite to be one
  31. There are more than 100 kinds of chili that only grow in Mexico
  32. When sneezing, our eyes are always closed
  33. All pole bears are left-handed
  34. Beruang Kutub
  35. Penguin can hold breath for 20 minute in water
  36. In every clock’s advertisement, the clock needles are always showing at 1010, because in order to show clock’s brand, also the needles give smile impression
  37. A front foot of cat has 5 fingers, while its rear foot has 4 fingers
  38. Bamboo is the fastest growing tree, every day it can grow 91,5cm
  39. A flea can jump up to 350 times its body length
  40. Eating banana in the night can makes us easy to sleep
  41. We can not lick our elbow
  42. At past time, cat is favorite pet in Egypt If his cat died, the owner would shave his eyebrow to sign his sorrow
  43. Bread is welcome symbol food in Russia
  44. Snow deer likes to eat moss to keep its body unfrozen
  45. At year 200, Rome people used mixed powder of bone, egg-shell, oyster skin and honey to clean their teeth
  46. Chili makes food last for longer time
  47. Mercurius rotates the sun with speed of 172,000km/hour
  48. Planet Jupiter’s rotation is only 1 hour 55 minute
  49. Planet Jupiter
  50. Venus is only planet in solar system that has rotate direction clockwise
  51. Saturn can float on water because a large part of its contents is helium gas, same with gas type of balloon
  52. A football-vast forest can absorb CO2 from a car which running as far as 41,843km
  53. Reducing air heat temperature about 5 -8 degree of Celsius is equal to 5 units of air conditioning machine (AC) that run 20 hours continuously

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Interesting Facts that You Have to Know about Mars

1. Mars has the biggest mountain in our solar system
The mountain is called "Olympus Mons" and it's actually dormant volcano. The mountain is 15.5 miles height and 372 miles in diameter. As comparison, Mount Everest height is just about 5 miles. Mars also has the biggest canyon in our solar system, known as "Valles Marineris" which is 2500 miles long and 4 miles deep.

Olympus Mons is seen from above
Olympus Mons is seen from above
Comparison between Mount Everest and Olympus Mons
Comparison between Mount Everest and Olympus Mons


2. People have always think about life on Mars because of the "canals" first seen by astronomers
This is why people always think about alien invaders coming from here, and not from Jupiter or Venus. Actually, Mars is one of the least habitable planets because freezing temperature, sun winds, and almost no atmosphere. The canals seen by astronomers are straight lines that scientists believe are evidence of water. Mars Canyon Mars Canyon
Mars Canyon


3. Mars is named based on the Roman God of War because its red color reminded observers of blood color
Red color of Mars is caused by its soil composed of iron oxide, or what we commonly call rust. Mars is seen from Hubble Telescope
Mars is seen from Hubble Telescope
Mars Surface
Mars Surface


4. Compared to the other planets in our solar system, Mars is quite small planet
It is half the size of the earth. Mars also has a third of the earth's gravity, means that you can jump three times higher that your jump on the earth. Comparison between Mars and Earth Comparison between Mars and Earth
Comparison between Mars and Earth


5. In the 1970's, Viking orbiter took pictures that seems to be giant face and pyramid on the planet's surface in Cydonia region
The picture looks like Egyptian Sphinx and is 2000 feet high. This discovery made UFOlogists excited; scientists say that is just eroded mesas. Many people still believe that the face are too symmetrical, and think it is evidence of ancient alien. Giant Face on Mars
Giant Face on Mars
Giant Face on Mars enlarge
Giant Face on Mars enlarge


6. Mars has the wildest weather in the solar system
It has tremendous wind storms, dust storms and small tornadoes. In 2001, a huge dust storm covered the entire planet for several earth days. Scientists are confused why planet with little atmosphere could have storm such that. They don't know what causes the storm, but there are more storms when Mars gets closer to the sun. When it's on the farther end of its orbit, there are icy clouds made of carbon dioxide and dust. This is also strange since Mars has no surface water. Mars weather in 2001
Mars weather in 2001


7. There has been a search for life on Mars, and also a search of water
After years of studying every crack on the planet's surface for evidence of water, scientists have finally found it. The Phoenix mission found that there are huge deposits of ice underneath the planet's surface. Picture of microscopic rock indicating water on Mars
Picture of microscopic rock indicating water on Mars


8. Mars has two moons, and one of it has chance to crash with Mars
One of the moons, called Phobos, has close orbit and is dangerous to Mars. Someday, the gravitational force will pull and crash to Mars. The debris will stay in Mars' orbit and making a ring like Saturn. At the end, the debris will fall down to Mars' surface. Scientists don't know when this will happen, but they predict it is going to happen in the next 50 years. Mars' Moon; Phobos (left) and Deimos (right)
Mars' Moon; Phobos (left) and Deimos (right)


9. Only 1/3 of all the mission to Mars have been successful
Many missions have disappeared that made scientists to wonder there is something strange happens. They also have opinion that Mars is called as "Bermuda Triangle" og our solar system.

Article source from www.factsaboutmars.net
Image sources from NASA, Teleskop Hubble & Wikipedia

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