Giant Magellan Telescope

Here’s how you build the world’s largest telescope! pic.twitter.com/uwx3vOTSnN

— CNET (@CNET) October 22, 2018

Today in 2006

Tumbuhan bertindak balas pada cahaya matahari

Dua minggu lepas dua pasu pokok gantung ini telah dibeli di pasar Seberang Jaya. Mulanya nak cari pokok biasa yang tak tergantung tapi pekedai asyik promote pokok gantung ini. Katanya susah nak cari pokok ni. Sekali sekala sahaja ada then aku pun termakanlah pujukannya.

Balik rumah aku pun drill dinding kat luar rumah sebab nak buat sangkut pokok ni. So far nampak sihat sahaja pokok ni, ingat nak try biakkan kalau boleh.

Pagi tadi waktu siap2 nak keluar rumah terperasan pokok ni nampak pelik sikit, sebab semua pucuk2nya terarah ke luar. Kesimpulannya tumbuhan bertindak balas terhadap cahaya matahari. Ini subjek sains sekolah rendah ni.

Highway in our solar systems

Scientists in the United States are trying to map the twisting 'tubes' so they can be used to cut the cost of space travel.






Link

Kids know science

* One horsepower is the amount of energy it takes to drag a horse 500 feet in one second.
* You can listen to thunder after lightning and tell how close you came to getting hit. If you don't hear it you got hit, so never mind. 
* Talc is found on rocks and on babies. 
* The law of gravity says no fair jumping up without coming back down. 
* When they broke open molecules, they found they were only stuffed with atoms, But when they broke open atoms, they found them stuffed with explosions. 
* When people run around and around in circles we say they are crazy. When planets do it we say they are orbiting. 
* Rainbows are just to look at, not to really understand. 
* While the earth seems to be knowingly keeping its distance from the sun, it is really only centrificating. 
* Someday we may discover how to make magnets that can point in any direction. 
* South America has cold summers and hot winters, but somehow they still manage. 
* Most books now say our sun is a star. But it still knows how to change back into a sun in the daytime. 
* Water freezes at 32 degrees and boils at 212 degrees. There are 180degrees between freezing and boiling because there are 180 degrees between north and south. 
* A vibration is a motion that can't make up its mind which way it wants to go. 
* There are 26 vitamins in all, but some of the letters are yet to be discovered. Finding them all means living forever. 
* There is a tremendous weight pushing down on the center of the Earth because of so much population stomping around up there these days. 
* Lime is a green-tasting rock. 
* Many dead animals in the past changed to fossils while others preferred to be oil.  (my fav :-) )
* Genetics explain why you look like your father and if you don't why you should. 
* Vacuums are nothings. We only mention them to let them know we know they're there. 
* Some oxygen molecules help fires burn while others help make water, so sometimes it's brother against brother. 
* Some people can tell what time it is by looking at the sun. But I have never been able to make out the numbers. 
* We say the cause of perfume disappearing is evaporation. Evaporation gets blamed for a lot of things people forget to put the top on. 
* To most people solutions mean finding the answers. But to chemists solutions are things that are still all mixed up. 
* In looking at a drop of water under a microscope, we find there are twice as many H's as O's. 
* Clouds are high flying fogs. 
* I am not sure how clouds get formed. But the clouds know how to do it, and that is the important thing. 
* Clouds just keep circling the earth around and around. And around. There is not much else to do. 
* Water vapor gets together in a cloud. When it is big enough to be called a drop, it does. 
* Humidity is the experience of looking for air and finding water. We keep track of the humidity in the air so we won't drown when we breathe. 
* Rain is often known as soft water, oppositely known as hail. 
* Rain is saved up in cloud banks. 
* In some rocks you can find the fossil footprints of fishes. 
* Cyanide is so poisonous that one drop of it on a dog's tongue will kill the strongest man. 
* A blizzard is when it snows sideways. 
* A hurricane is a breeze of a bigly size. 
* A monsoon is a French gentleman. 
* Thunder is a rich source of loudness. 
* Isotherms and isobars are even more important than their names sound. 
* It is so hot in some places that the people there have to live in other places. 
* The wind is like the air, only pushier.

Purple fluorescent frog dicovered

A purple fluorescent frog of the genus Atelopus was discovered during a follow-up survey of the Nassau plateau in mid 2006 by Surinamese scientists Paul Ouboter and Jan Mol. The frog is one of 24 new species found in the South American highlands of Suriname, conservationists reported on June 4, 2007, warning that these creatures are threatened by illegal gold mining.

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Giant crystal cave

Story here.

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The top of the atmosphere

Click image to enlarge.

Atmospheric gases scatter blue wavelengths of visible light more than other wavelengths, giving the Earth’s visible edge a blue halo. At higher and higher altitudes, the atmosphere becomes so thin that it essentially ceases to exist. Gradually, the atmospheric halo fades into the blackness of space. This astronaut photograph captured on July 20, 2006, shows a nearly translucent moon emerging from behind the halo.


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What is the one thing everyone should learn about science?

Seth Lloyd Professor of mechanical engineering at the Massachusetts Institute of Technology

You do not have to be a scientist to do science; you can be a child, a computer, or an intelligent rat. As long as you can verify a result, it is part of science.

Freeman Dyson Emeritus professor of physics at the Institute for Advanced Study in Princeton

Science is about uncertainty. We do not yet know the answers to most of the important questions — nature is smarter than we are. But if we are patient, and not in too much of a hurry, then science gives us a good way to find the answers.

Richard Dawkins Charles Simonyi professor of the public understanding of science at the University of Oxford, and a science writer and broadcaster

I wish everyone understood Darwinian natural selection, and its enormous explanatory power, as the only known explanation of "design". The world is divided into things that look designed, like birds and airliners; and things that do not look designed, like rocks and mountains. Things that look designed are divided into those that really are designed, like submarines and tin openers; and those that are not really designed, like sharks and hedgehogs. Darwinian natural selection, although it involves no true design at all, can produce an uncanny simulacrum of true design. An engineer would be hard put to decide whether a bird or a plane was the more aerodynamically elegant.

Lewis Wolpert Emeritus professor of biology as applied to medicine at University College London

I would teach the world that science is the best way to understand the world, and that for any set of observations, there is only one correct explanation. Also, science is value-free, as it explains the world as it is. Ethical issues arise only when science is applied to technology — from medicine to industry.

Kathy Sykes Collier professor of public engagement in science and engineering at the University of Bristol

I would teach the world that science is not about truth, but is about trying to get closer to the truth. This is important because, too often, people look to scientists as having the "truth". What we have is wrapped in uncertainties, caveats and simplifications.

John Gribbin Astrophysicist and science writer

I cannot improve upon the comment of the American physicist Richard Feynman: "The most important information … is the atomic hypothesis … that all things are made of atoms — little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another."

Bernard Lovell Astronomer and founder of Jodrell Bank Observatory

I would teach the world that fundamental scientific research is neutral, but the dividing line between good and evil in the eventual use of the results of research is often thin and tenuous.

In the first half of the 20th century, research into the structure of matter led to a detailed knowledge of atomic structure, and to a knowledge that in certain transmutations, there was a loss of mass. The second world war led to the enormous concentration of tech­nological effort, to convert this knowledge into devastating weapons of mass destruction, instead of providing atomic power for the benefit of humanity. That contrast between the good and the evil, in the eventual use of research, confronts us today.

Simon Baron-Cohen Professor of developmental psychopathology at the University of Cambridge, and director of the Autism Research Centre

I would teach the world that scientists fall in love — with experiments. An experiment can be beautifully stunning. Experiments are not just about proof — some of them have an intrinsic elegance, that you just want to go back to and look at again and again. Take men with two X chromosomes. This puzzle of nature just called out for the experiment, conducted in 1990, to search the two X chromosomes in such individuals — to find a bit of the Y chromosome, that might have broken off and become integrated into one of the X chromosomes. It just had to be there. And sure enough, it was. What we now know to be the SRY gene — the sex-related Y gene — had got into the X chromosome. And this is the gene that turns on the process to grow testes, and become male.

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