CRAZY EFFECT OF LIQUIDS…(Leidenfrost)

This is a crazy yet interesting effect of liquids.

Now, when a liquid droplet is dropped on a hot surface the water droplet evaporates instantly. We usually expect the same in case of a surface with more temperature than the boiling point of the liquid, but it isn’t happening. The liquid droplet hovers over the hot surface. This strange phenomenon is first discovered by a German physician, Johann Gottod Leidenfrost.

How this happens?

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Initially we see the droplets move around before they evaporate, after a while, we see the droplets skitter around the pan randomly. This happens when the temperature of the bottom surface exceeds LEIDENFROST point. When this point is reached the bottom surface of the water droplet evaporates very instantly that it creates a little insulating pocket under the drop through which the droplet hovers. As the droplet moves around on the hot surface molecules of the water start turning into vapour.

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Here’s still interesting thing, if a droplet is introduced on an incline of finely milled grooves live tiny stairs, the grooves will create just the right disruption in the vapour to move the droplet up the stairs (grooves).

This crazy effect of liquids have application in micro cooling electronics, ink jet etc..

Thanks to my friend Prathik for suggesting this topic..

BLOGGER RECOGNITION AWARD!!!

Firstly many thanks to “LifeMyntras” By Damini for this award. LifeMyntras is a fantastic blog, do check it out.https://lifemyntras.wordpress.com/

What’s this award? 

Well this award is an extension of gratitude  to all those people who make your news feed exciting!

So now, here are the rules for your reference:

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Rules

Select 15 other blogs you want to give the award to.
Remember you can´t nominate yourself or the person who has nominated you. Lets give a chance to other bloggers! Write a post to show off your award! Give a brief story of how your blog got started, and give one or two advice to new bloggers. Thank the person who nominated you, and provide a link to their blog.
List who you’ve nominated in the post. Make sure to also attach the award itself! (You can do this by right-clicking, saving, and uploading the image above).
Let the bloggers know you’ve nominated them by providing a link to the award post you created.

The story of my Blog

Well… This is the most interesting part in this post. I started this blog on April 4th 2015 ;). I started this blog to share my views, ideas, thoughts and mostly the Interesting Cool stuff which fascinates and gives us Information on various fields in fast growing Science and Technology. Scientists predict that in old times kowledge of humans doubles for every 1500 years and now for every 12 months the knowledge doubles. Alright that is quite a bit off topic, this blog exists because, this is the platform to interact with people and their ideas worldwide, which fetches me to improve my knowledge and may be their too.

Advice to new bloggers 

I am not so well experienced blogger, though I have a few suggestions. Concentrate on the content you “write” not the videos you present because people open wordpress to read content not to view videos, try to write constantly, interact with people and know some new things, tag your posts correctly…

Nominations

Congratulations you are nominated, everyone who read this is nominated, because this is blogger recognition award and it is damn tough to nominate 15 bloggers.

NATURE OF TIME


Of the many philosophical assumptions in physics about the nature of reality, none is more mysterious than the existence of time. Unlike space, time does not have any of our five senses assigned to it. Our primary sensory mechanism, sight, creates a 3D world around us. Even in the absence of vision, hearing can place point sources in a 3D space. We have no built-in mechanism to perceive or sense time.

So what makes us sense time? 

Time is sensed through change. We can best sense objects and movements at scales comparable to our body dimensions and speed. We can clearly see a person running, but not a bullet coming at us. We can appreciate the difference in size between an adult and a child, but not between two celestial objects or micro-organisms.  Our sense of time is modulated by our life expectancy.

Time is Relative.

 For suppose, if we lived forever, would we have a sense of time?  If we did not have a sense of time, would that mean there was no time? Does time have an existence independent of our minds? More to our purpose in this book, would it be possible to do physics without a notion of time? Physics, as we know it today, (e.g., Newton’s laws of motion and the special theory of relativity) has time figuring prominently as an essential ingredient. A physics with no explicit time was attempted by Julian Barbour (in The End of Time), which shows that time is not essential. Time, however, makes it far more convenient to do physics.

Do animals have a sense of time? It is unlikely that they are conscious of their death. So, by our conjecture, they should not have a sense of time.
If you grew up on an island, without contact with other human beings, would you have a sense of time? It seems obvious that you would not have a language in the conventional sense of the word. Some philosophers believe that you would not even have any thoughts at all. But does the sense of time come before or after thoughts?

Time is unreal assumption like Mathematics we use. But that’s an extremely convenient tool, which we use to solve many problems in Physical Sciences.

This is the topic where we get more questions than answers. This is a never ending process. All of it cannot be discussed in a single post. This is just a part of it. Expect still more posts on Time.

I hope you like this above information about the Nature of Time.  All that information is taken from bunch of different sources and if you are interested in learning more about TIME, check out the PDF of “A BRIEF HISTORY OF TIME BY STEPHEN HAWKING”

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Most Luxurious cars 2015.

Aston Martin Rapide S – Base Price $198,250

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Freshly redesigned for the 2014 model year, the four-door Aston Martin comes to market with even more speed, beauty, and grace. It also delivers a level of handcrafted luxury few other cars (read cars not on this list) can approach. Consider this; the grille of the Aston Martin Rapide S is honed from a single piece of aluminum—by hand. Similarly, the interior is entirely crafted and installed by hand, employing only the finest materials imaginable. The hand assembled V12 engine displaces 6.0-liters, produces 550 horsepower, 457 ft-lbs of torque, and a delightfully scintillating top speed of 203 mph.

Audi A8 L W12 – Base Price $137,900

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A rolling paragon of technological achievement, the body of Audi’s all-wheel drive flagship is crafted of aluminum—as is its space frame. The first automobile to be so constructed, it introduced the world to the lightweight luxury car. The body is the only thing about it rightly considered “a lightweight” though. The Audi’s sumptuous interior is the envy of the automotive world. Further, the A8 can serve as a WiFi hotspot. Old-world luxury combined with cutting edge technology makes Audi’s A8 L W12 a singularly distinctive automobile.  Its 6.3-liter 12-cylinder engine produces 500 horsepower and 463 ft-lbs of torque.

BMW 760Li– Base Price $141,200

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Large in size, understated otherwise, the BMW flagship is spacious, elegant, and insanely fast. But that’s just a minor aspect of what the car is all about. Night vision, soft-closing doors, smart cruise control, side view cameras, iDrive, handwriting recognition, if you’re looking for tech, you’ll find more than enough here. But that doesn’t really capture the essence of the BMW 760Li either. Here’s the thing, the BMW is so good at everything, it comes across as a non-event—even while performing absolutely extraordinary feats. The BMW’s 6.0-liter twin turbocharged V12 produces 535 horsepower and 550 ft-lbs of torque.

 Bentley Mulsanne – Base Price $298,900

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Only one car even comes close to approaching the Bentley Mulsanne, the Rolls-Royce Phantom. But it costs considerably more, while being slower, less agile, more ostentatious, and frankly, less exclusive. So elite is the handbuilt Bentley, you might see one on the street in your lifetime. Consider this; it takes nine weeks to build a single Mulsanne, 170 hours of which is spent on the interior, 15 hours of which are spent sewing the leather on the steering wheel. And then, there is the power, 752 ft-lbs of torque and 505 horsepower from a 6.75-liter twin-turbocharged V8. Yeah. Nice.

Jaguar XJR LWB – Base Price $119,000

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Personifying Sir William Lyons’ insistence every Jaguar car embrace pace, space, and grace, the Jaguar XJR LWB is one of the most distinctive automobiles you’ll ever see. On the pace front, we’re looking at a 550 horsepower supercharged V8 with 502 ft-lbs of torque, paired with one of the most agile suspension systems ever fitted to a luxury car. On the space front, LWB stands for long wheelbase, and the Jaguar flagship offers more than enough room for outstanding comfort in all four seating positions. Which brings us to grace. Only the finest materials adorn the stunningly beautiful interior.

Mercedes-Benz S65 AMG – Base Price $222,000

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Specific attention to detail is another hallmark of the exceptional automobiles on this list of the most luxurious cars. Tray tables, and rear-seat controls for all of the comfort and convenience systems in the car are nice touches, but Mercedes-Benz goes one better with a cabin fragrance system dispensing an atomized bouquet into the car at periodic intervals. By now, the technological mastery of Mercedes-Benz automobiles is legend—so we won’t belabor it here. Absolute state of the art is a succinct description. The 2015 Mercedes-Benz S65 AMG’s handbuilt twin-turbocharged V12 makes 621 horsepower and 738 ft-lbs of torque.

 Porsche Panamera Turbo S Executive – Base Price $200,500

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The all-wheel drive, long wheelbase version of Porsche’s Panamera is almost laughably comfortable, luxurious, powerful, and agile. The Porsche also has the most distinctive appearance of the cars here (nothing else looks like it, save perhaps another Porsche), and it goes like crazy. The real beauty of the Porsche Panamera Turbo S Executive lies in the fact it pampers like an executive express is expected to, while delivering the level of excitement endemic to its marque. An ultra-luxury sedan? Yes, absolutely. A Porsche too? Through and through. Its twin-turbocharged 4.8-liter V8 makes 570 horsepower and 553 ft-lbs of torque.

 Rolls-Royce Phantom Drophead Coupe – Base Price $474,600

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Designed without compromise, Rolls-Royce motorcars certainly deserve their lofty reputation. At Rolls-Royce, the aim is to build nothing less than the best cars in the world. And yes, the best cars in the world mean very different things to different people. In this case, it means the finest materials, hand craftsmanship, outstanding comfort, competent handling, more than adequate performance potential, and a look capable of summing all of those attributes up with a single glance. Of the cars the company produces, we chose the Phantom Drophead here because absolutely nothing else says luxury the way this outstanding convertible does.

All the information you have seen above is taken from various trusted sources.