Jagga Jasoos :Jhumritalaiyya Song l Ranbir, Katrina | Pritam Arijit, Moh...
Hindustan Times: Cults such as Ram Rahim's must not be allowed to become such a public nuisance.
SHAMBHO SHANKARA NAMAH SIVAY (A Tribute to Lord Shiva - Rajat Prakash) đ
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Sat-ya-m-ev ja-ya-te!
Formula one or F-1 is one of the most prestigious and technologically advanced sports in the world.The never-ending battle for supremacy makes F-1 one of the most competitive, expensive and demanding sports in the world.
It is a game of chess played at 300 Kmph.The real war though is fought behind closed doors in the secrecy of the teamâs headquarters.Â
As March 13 marks the start of a new season of this motor sport, we decided that it was high time we unveil the technology that underlies the stardom of the automobile industry - The formula one car.
From questions like what enables a formula one car to go upside down a tunnel? to awfully simple questions like does the F-1 car have an ignition key and why not? we will try to cover it all. Most importantly, we will try to weave what you already know to explain new concepts.Â
 The rough list of contents for this series are:
A brief history of Formula one.
Aerodynamics- The art of glueing the car to the ground.
The nucleus of the car- F-1 engine and the gearbox.
One has to stop!! -Brakes and steering wheel.
Tyre and fuel technology- This rarely is given the importance that it needs.
Fun facts and trivia with every post.
If you have any questions that you have in mind to be answered and topics that we have missed, please post it in the comments section below. We would be delighted to address them.
Hang onto your hats, itâs going to be a wild and crazy ride ahead!
Back to Black!
Itâs Friday, Sept. 15 and our Cassini mission has officially come to a spectacular end. The final signal from the spacecraft was received here on Earth at 7:55 a.m. EDT after a fateful plunge into Saturnâs atmosphere.
After losing contact with Earth, the spacecraft burned up like a meteor, becoming part of the planet itself.
Although bittersweet, Cassiniâs triumphant end is the culmination of a nearly 20-year mission that overflowed with discoveries.
Mission Team and Data
Now that the spacecraft is gone, most of the teamâs engineers are migrating to other planetary missions, where they will continue to contribute to the work weâre doing to explore our solar system and beyond.
Mission scientists will keep working for the coming years to ensure that we fully understand all of the data acquired during the missionâs Grand Finale. They will carefully calibrate and study all of this data so that it can be entered into the Planetary Data System. From there, it will be accessible to future scientists for years to come.
Even beyond that, the science data will continue to be worked on for decades, possibly more, depending on the research grants that are acquired.
Other team members, some who have spent most of their career working on the Cassini mission, will use this as an opportunity to retire.
Future Missions
In revealing that Enceladus has essentially all the ingredients needed for life, the mission energized a pivot to the exploration of âocean worldsâ that has been sweeping planetary science over the past couple of decades.
Jupiterâs moon Europa has been a prime target for future exploration, and many lessons during Cassiniâs mission are being applied in planning our Europa Clipper mission, planned for launch in the 2020s.
The mission will orbit the giant planet, Jupiter, using gravitational assists from large moons to maneuver the spacecraft into repeated close encounters, much as Cassini has used the gravity of Titan to continually shape the spacecraftâs course.
In addition, many engineers and scientists from Cassini are serving on the new Europa Clipper mission and helping to shape its science investigations. For example, several members of the Cassini Ion and Neutral Mass Spectrometer team are developing an extremely sensitive, next-generation version of their instrument for flight on Europa Clipper. What Cassini has learned about flying through the plume of material spraying from Enceladus will be invaluable to Europa Clipper, should plume activity be confirmed on Europa.
In the decades following Cassini, scientists hope to return to the Saturn system to follow up on the missionâs many discoveries. Mission concepts under consideration include robotic explorers to drift on the methane seas of Titan and fly through the Enceladus plume to collect and analyze samples for signs of biology.
Atmospheric probes to all four of the outer planets have long been a priority for the science community, and the most recent recommendations from a group of planetary scientists shows interest in sending such a mission to Saturn. By directly sampling Saturnâs upper atmosphere during its last orbits and final plunge, Cassini is laying the groundwork for an potential Saturn atmospheric probe.
A variety of potential mission concepts are discussed in a recently completed study â including orbiters, flybys and probes that would dive into Uranusâ atmosphere to study its composition. Future missions to the ice giants might explore those worlds using an approach similar to Cassiniâs mission.
Learn more about the Cassini mission and its Grand Finale HERE.
Follow the mission on Facebook and Twitter for the latest updates.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Varroc Lighting Systems design animation an new era in lighting syatem.
Whether itâs crops, forests or phytoplankton blooms in the ocean, our scientists are tracking life on Earth. Just as satellites help researchers study the atmosphere, rainfall and other physical characteristics of the planet, the ever-improving view from above allows them to study Earthâs interconnected life.
1. Life on Earth, From Space
While we (NASA) began monitoring life on land in the 1970s with the Landsat satellites, this fall marks 20 years since weâve continuously observed all the plant life at the surface of both the land and ocean. The above animation captures the entirety of two decades of observations.
2. Watching the World Breathe
With the right tools, we can see Earth breathe. With early weather satellite data in the 1970s and â80s, NASA Goddard scientist Compton Tucker was able to see plantsâ greening and die-back from space. He developed a way of comparing satellite data in two wavelengths.
When healthy plants are stocked with chlorophyll and ready to photosynthesize to make food (and absorb carbon dioxide), leaves absorb red light but reflect infrared light back into space. By comparing the ratio of red to infrared light, Tucker and his colleagues could quantify vegetation covering the land.
Expanding the study to the rest of the globe, the scientists could track rainy and dry seasons in Africa, see the springtime blooms in North America, and wildfires scorching forests worldwide.
3. Like Breathing? Thank Earthâs Ocean
But land is only part of the story. The ocean is home to 95 percent of Earthâs living space, covering 70 percent of the planet and stretching miles deep. At the base of the oceanâs food web is phytoplankton - tiny plants that also undergo photosynthesis to turn nutrients and carbon dioxide into sugar and oxygen. Phytoplankton not only feed the rest of ocean life, they absorb carbon dioxide - and produce about half the oxygen we breathe.
In the Arctic Ocean, an explosion of phytoplankton indicates change. As seasonal sea ice melts, warming waters and more sunlight will trigger a sudden, massive phytoplankton bloom that feeds birds, sea lions and newly-hatched fish. But with warming atmospheric temperatures, that bloom is now happening several weeks earlier - before the animals are in place to take advantage of it.
4. Keeping an Eye on Crops
The âgreennessâ measurement that scientists use to measure forests and grasslands can also be used to monitor the health of agricultural fields. By the 1980s, food security analysts were approaching NASA to see how satellite images could help with the Famine Early Warning System to identify regions at risk - a partnership that continues today.
With rainfall estimates, vegetation measurements, as well as the recent addition of soil moisture information, our scientists can help organizations like USAID direct emergency help.
The view from space can also help improve agricultural practices. A winery in California, for example, uses individual pixels of Landsat data to determine when to irrigate and how much water to use.
5. Coming Soon to the International Space Station
A laser-based instrument being developed for the International Space Station will provide a unique 3-D view of Earthâs forests. The instrument, called GEDI, will be the first to systematically probe the depths of the forests from space.
Another ISS instrument in development, ECOSTRESS, will study how effectively plants use water. That knowledge provided on a global scale from space will tell us âwhich plants are going to live or die in a future world of greater droughts,â said Josh Fisher, a research scientist at NASAâs Jet Propulsion Laboratory and science lead for ECOSTRESS.
6. Seeing Life, From the Microscopic to Multicellular
Scientists have used our vantage from space to study changes in animal habitats, track disease outbreaks, monitor forests and even help discover a new species. Bacteria, plants, land animals, sea creatures and birds reveal a changing world.
Our Black Marble image provides a unique view of human activity. Looking at trends in our lights at night, scientists can study how cities develop over time, how lighting and activity changes during certain seasons and holidays, and even aid emergency responders during power outages caused by natural disasters.
7. Earth as Analog and Proving Ground
Just as our Mars rovers were tested in Earthâs deserts, the search for life on ocean moons in our solar system is being refined by experiments here. JPL research scientist Morgan Cable looks for life on the moons of Jupiter and Saturn. She cites satellite observations of Arctic and Antarctic ice fields that are informing the planning for a future mission to Europa, an icy moon of Jupiter.
The Earth observations help researchers find ways to date the origin of jumbled, chaotic ice. âWhen we visit Europa, we want to go to very young places, where material from that ocean is being expressed on the surface,â she explained. âAnywhere like that, the chances of finding biomarkers goes up - if theyâre there.â
8. Only One Living Planet
Today, we know of only one living planet: our own. The knowledge and tools NASA developed to study life here are among our greatest assets as we begin the search for life beyond Earth.
There are two main questions: With so many places to look, how can we home in on the places most likely to harbor life? What are the unmistakable signs of life - even if it comes in a form we donât fully understand? In this early phase of the search, âWe have to go with the only kind of life we know,â said Tony del Genio, co-lead of a new NASA interdisciplinary initiative to search for life on other worlds.
So, the focus is on liquid water. Even bacteria around deep-sea vents that donât need sunlight to live need water. That one necessity rules out many planets that are too close or too far from their stars for water to exist, or too far from us to tell. Our Galileo and Cassini missions revealed that some moons of Jupiter and Saturn are not the dead rocks astronomers had assumed, but appear to have some conditions needed for life beneath icy surfaces.
9. Looking for Life Beyond Our Solar System
In the exoplanet (planets outside our solar system that orbit another star) world, itâs possible to calculate the range of distances for any star where orbiting planets could have liquid water. This is called the starâs habitable zone. Astronomers have already located some habitable-zone planets, and research scientist Andrew Rushby of NASA Ames Research Center is researching ways to refine the search. âAn alien would spot three planets in our solar system in the habitable zone [Earth, Mars and Venus],â Rushby said, âbut we know that 67 percent of those planets are not inhabited.â
He recently developed a model of Earthâs carbon cycle and combined it with other tools to study which planets in habitable zones would be the best targets to look for life, considering probable tectonic activity and water cycles. He found that larger planets are more likely than smaller ones to have surface temperatures conducive to liquid water. Other exoplanet researchers are looking for rocky worlds, and biosignatures, the chemical signs of life.
10. You Can Learn a Lot from a Dot
When humans start collecting direct images of exoplanets, even the closest ones will appear as only a handful of pixels in the detector - something like the famous âblue dotâ image of Earth from Saturn. What can we learn about life on these planets from a single dot?
Stephen Kane of the University of California, Riverside, has come up with a way to answer that question by using our EPIC camera on NOAAâs DSCOVR satellite. âIâm taking these glorious pictures and collapsing them down to a single pixel or handful of pixels,â Kane explained. He runs the light through a noise filter that attempts to simulate the interference expected from an exoplanet mission. By observing how the brightness of Earth changes when mostly land is in view compared with mostly water, Kane reverse-engineers Earthâs rotation rate - something that has yet to be measured directly for exoplanets.
The most universal, most profound question about any unknown world is whether it harbors life. The quest to find life beyond Earth is just beginning, but it will be informed by the study of our own living planet.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
I'm a proud Aryan. My parents are my God! My religion is humanity! The Sanatana!
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