ENDEAVOUR HAS ONE MORE CHANCE TODAY!!

ENDEAVOUR HAS ONE MORE CHANCE TODAY

Tanking operations are under way at NASA's Kennedy Space Center in Florida. The loading of the space shuttle's external tank with a half-million gallons of liquid oxygen and liquid hydrogen began at 8:38 a.m. EDT. The three-hour process will provide the fuel and oxidizer Endeavour's three main engines need for the 8 1/2 minute trip to orbit.

Weather at Kennedy remains at 60-percent chance for favorable weather for an early-evening liftoff at 6:03 p.m. The primary weather concerns for launch are the potential for showers and thunderstorms near the Shuttle Landing Facility.

THE WEATHER FOR THE LAUNCH WILL DEPEND FOR A CONDITION AT T-2 HOURS TO THE LAUNCH

A SUPERQUAKE STRIKES SOUTH-WEST TIP OF NEW ZEALAND!!

A  SUPER EARTHQUAKE STRIKES NEW ZEALAND'S WEST COAST....


DEAR ALL
A POWERFUL 7.8 MAGNITUDE EARTHQUAKE HAS STRIKED THE WEST COAST OF NEW ZEALAND...

TSUNAMI WARNING HAS BEEN ISSUED FOR AUSTRALIA.

HERE IS A NEWS REPORT--

A 7.8-magnitude earthquake has shaken New Zealand, prompting a tsunami warning for parts of the Pacific Ocean.

The quake struck off the south-west tip of New Zealand, 161km (100 miles) west of Invercargill at a depth of 33km (20 miles), the US Geological Survey said.

The Pacific Tsunami Warning Center in Hawaii issued a "non-expanding regional tsunami warning" for nearby areas.

There were no immediate reports of damage or any evidence that a tsunami had formed after the quake.

"An earthquake of this size has the potential to generate a destructive tsunami that can strike coastlines in the region near the epicentre within minutes to hours," the warning centre said in a statement.

The quake was detected at 0922GMT (2122 local time), reports said.

New Zealand's Herald newspaper said the quake was felt across the South Island.

People ran from restaurants in Queenstown as buildings shook, the newspaper said. Power and phone lines were severed in some places.

One South Island resident, Simon Darby, told the newspaper the quake lasted about two-and-a-half minutes.

"I lived in Tokyo for three years so I know what large quakes are like. Even though we are maybe 400km from the epicentre this was easily the longest and biggest I have ever felt," he said.

"It wasn't very violent, more of a rolling feel. But it had a power about it - I ran straight outside into the car park."

THE AKSHAY'S GYAAN SEISMOLOGY TEAM HAS BEEN CALLED FOR AN URGENT MEETING

AKSHAY

WEATHER CHANGES..DELAYS ENDEAVOUR'S LAUNCH

view of kennedy space center

LAUNCH WAVED OFF DUE TO POOR WEATHER CONDITION. STORM CLOUDS AND LIGHTNING DISABLED THE LAUNCH

Space shuttle Endeavour's STS-127 launch now is scheduled for July 13 at
6:51 p.m. EDT.

Officials at NASA's Kennedy Space Center in Florida called off Sunday's planned liftoff due to inclement weather. Cumulus clouds and lightning violated rules for launching Endeavour because of weather near the Shuttle Landing Facility. The runway would be needed in the unlikely event that Endeavour would have to make an emergency landing back at Kennedy. 

The STS-127 astronauts left Launch Pad 39A at about 8:35 p.m. EDT to return to crew quarters at Kennedy's Operations & Checkout Building for the night.

BEST OF LUCK TO THE ASTRONAUT TEAM OF STS 127!!

AKSHAY

STS 127 ON WAITING TO TOUCH THE SKY

THUNDERSTORMS CAN DELAY LAUNCH OF STS 127.

THE LAUNCH OF SPACE SHUTTLE ENDEAVOUR IS AFTER 13 HOURS 45 MIN FROM NOW..

THE SEVERE WEATHER IS APPROACHING TOWARDS FLORIDA. HOWEVER IT IS BEING EXPECTED THT WEATHER WILL BE CLEAR

METD WILL FORECASTS THE WEATHER UPDATES ON AKSHAY'S GYAAN

HERE ARE SOME LINES FROM NASA.GOV

At NASA Kennedy Space Center's Launch Pad 39A, crews began moving the Rotating Service Structure to its park position on time at 11 p.m. EDT. The move takes approximately one hour.

The launch team will meet tomorrow at 9:30 a.m. for a weather briefing before fueling space shuttle Endeavour. Tanking coverage will begin at 10 a.m. on NASA Television.

COURTESY

www.nasa.gov/shuttle/main/index.html

 

TODAY IS MY BIRTHDAY

DEAR ALL
TODAY IS MY 15TH BIRTHDAY>
I WILL CELEBRATE IT WITH JOY AT THE METD HEADQUARTER AT MY HOME IN NAGPUR
I THANK ALL THOSE WHO WISH ME AND HAVE SUPPORTED FOR YEARS TOGETHER

I AM BACK ON AKSHAY'S GYAAN.METD WEATHER STATION CLOSES FROM TODAY

MY HOME

dear all

i am back to akshay's gyaan

as per the promise i will write a science article tonight.

i had a great time in metd weather station

i got 98% success in monsoon forecasting and its updates. i did it just by using satellite images.

the metd weather station now has closed from today.it will re-open the next year

i am sure you might have read my new blog. once again sorry for the absence

LRO REACHES MOONS ORBIT

NASA'S LRO ENTERS MOONS ORBIT AFTER 5 DAYS OF TRAVEL

After a successful insertion rocket burn on the morning of June 23, the Lunar Reconnaissance Orbiter's orbit was established shortly before 6:30 a.m. EDT.Rocket burns initiated by controllers at NASA's Goddard Space Flight Center in Greenbelt, Md., have helped the moon capture LRO, which arrived after a five-day journey.Now LRO begins its primary mission of mapping the lunar surface to find future landing sites and searching for resources that would make possible a permanent human presence on the moon.Over the next several days, LRO's instruments will be turned on and its final orbit around the moon will be reached.

TODAY IS EQUINOX

An equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The term equinox can also be used in a broader sense, meaning the date when such a passage happens. The name "equinox" is derived from the Latin aequus (equal) and nox (night), because around the equinox, the night and day are approximately equally long. It may be better understood to mean that latitudes +L and -L north and south of the equator experience nights of equal length.
The word is also used for the same event happening on other planets and in setting up a celestial coordinate system
At an equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator(i.e. declination 0) and ecliptic intersect. These points of intersection are called equinoctial points: the vernal point and the autumnal point. By extension, the term equinox may denote an equinoctial point.
An equinox happens each year at two specific moments in time (rather than two whole days), when there is a location on the Earth's Equator where the centre of the Sun can be observed to be vertically overhead, occurring around March 20/21 and September 22/23 each year.

PARDON ME FOR MY ABSENCE

DEAR READERS...

PARDON ME FOR NOT WRITING ANY ARTICLE AFTER I WROTE THE 50TH ARTICLE.

CURRENTLY I AM BUSY WITH THE METD WEATHER STATION WORK AND WEATHER FORECASTS.. 

I AM LEARNING METEROLOGY SO I HAD NO TIME FOR WRITING ANY SCIENCE ARTICLES

BUT I WILL BE BACK SOON IN THE MONTH OF JULY

MY 54TH ARTICLE WILL BE WRITTEN BY 2ND JULY 09

AFTER THIS GAP I PROMISE TO BE BACK WITH NEW INSPIRATION

SORRY ONCE AGAIN

AKSHAY 

METD WEATHER STATION

LRO/LCROSS SET TO LAUNCH

NASA' LRO AND LCROSS SET TO LAUNCH

NASA's Lunar Reconnaissance Orbiter and Lunar Crater Observation and Sensing Satellite are set to lift off together aboard an Atlas V rocket on Thursday, June 18, at 5:12 p.m. EDT. Two additional launch opportunities are available at 5:22 p.m. and 5:32 p.m.

In preparation for liftoff, the Atlas V launch vehicle is scheduled to roll out to the pad Wednesday at 10 a.m

MISSION DETAILS

NASA's Lunar Reconnaissance Orbiter and Lunar Crater Observation and Sensing Spacecraft will fly to the moon atop the same Atlas V rocket, although they will use vastly different methods to study the lunar environment. LRO will go into orbit around the moon, turning its suite of instruments towards the moon for thorough studies. The spacecraft also will be looking for potential landing sites for astronauts. 

LCROSS, on the other hand, will guide an empty upper stage on a collision course with a permanently shaded crater in an effort to kick up evidence of water at the moon's poles. LCROSS itself will also impact the lunar surface during its course of study. 

Liftoff currently is scheduled for June 18 at 5:12 p.m. EDT. There are two more launch opportunities that day at 5:22 p.m. and 5:32 p.m.

STS 127 launch waved off till july 11

Space shuttle Endeavour's STS-127 launch today was officially scrubbed at 1:55 a.m. EDT when the same type of gaseous hydrogen leak was detected at the Ground Umbilical Carrier Plate, or GUCP. This is the same location where a similar leak resulted in a launch scrub on June 13."We're going to step back and figure out what the problem is and go fix it," said Deputy Space Shuttle Program Manager LeRoy Cain during a briefing afterward. "Once we get it fixed and we're confident that we have a solution that's going to work and allow us to go fly safely, then we'll proceed forward."Teams followed the same repair method as they did for the GUCP leak encountered during the STS-119 countdown. The STS-119 and STS-127 leaks will both be evaluated in order to determine the cause. Data collected during fueling is expected to help the troubleshooting effort.Endeavour's next launch attempt for its STS-127 mission is targeted for July 11 at 7:39 p.m. EDT.

New Web--page

Dear all
I have started a new web site on weather
please visit the following url----

METD WEATHER STATION

www.metdweather.blogspot.com


Thanking you


Akshay Deoras
owner
1] Akshay's Gyaan
2] METD WEATHER STATION

50th article on Akshay's gyaan!

My home

Pratap nagar

Nagpur

50TH ARTICLE ON AKSHAY'S GYAAN AND 55TH POST............

I AM GOING TO TALK ABOUT THREE AMAZING PERSONS I KNOW. AMONG THEM ONE LIVE IN INDIA AND Two IN US.....

1] RESPECTED JIM BERKLAND sir

Jim Berkland is a well known personality not only as a geologist as well as a lead earthquake predictor.Jim sir has predicted severe earthquakes with corret magnitude and position. He is a geologist in us. Once he was given the work to observe the level of groundwater every week.. at that time he discovered that there were changes in the level.

there was a change in the weekly strip charts that monitored the water table. The paper charts showed small fluctuations every six hours that could only be attributed the the Moon's gravity. He later realized that the only thing holding up slippage along faults was FRICTIION. If the resistance to movement was overcome by fluctuations in fluid pore presure (greasing the skids) then earthquakes can occur, as long as the fault has stored up sufficient strain. The strains are marked by increasing changes in the local magnetic field, and this is detected by animals, and some people, by means of the magnetite crystals created mainly in their heads. (Bees have it in their abdomens, and chitons in their teeth.>) For large quakes the signals may be detected up to three weeks in advance, such as happened prior to the World Series quake and the Northridge quake.

his facts

Berkland was suspended for 2 months from his Santa Clara County geology position in late October, 1989 after an article appeared in the Gilroy Dispatch (Gilroy, California) on October 13, one day before the start of Baseball's 1989 World Series. In an interview with the reporter, he made a prediction that a major earthquake would occur in the San Francisco Bay Area during the series. The Loma Prieta earthquake occurred on October 17, just before the start of the third game of the Series. Berkland claims that the government told him not to make any more predictions fearing mass panic.
Critics counter that the majority of other predictions he has made are much less specific than his 1989 prediction, and that he has since been unable to make a public prediction of that significance before an event.
Berkland predicted an earthquake for January 9-14, 2009.

since then he predicts the earthquake and they all are right..

i met Jim sir on Internet. I had mailed him our earthquake prediction and he responded"very good" since then we have regular conversation.....

2] Reed Timmer

Reed is a person who lives in okhlahoma in us. He is popular as a storm chaser all over the world. He chases storms and take videos.Later he sell the videos through his web site

http://www.tornadovideos.net/..

you can see Reed on Discovery Channel on the Programme "Storm Chasers"

He has a team of 3 members including him. He goes for storm chasing in the tornado-alliey of Us. by using internet

Recently he was succesful in keeping a probe inside a tornado.Reed has seen many tornadoes and have captured Excellent videos..

his bio-data.He is now the Honorary Member of stormgasm.net

Reed Timmer is currently working on his PHD in Meteorology at the University of Oklahoma. Reed chases supercells, tornadoes, and hurricanes in his free time. Reed has a passion for weather that can only be described as "incredible"!
Reed became an honorary member of Stormgasm.com in August of 2005. He has storm chased with Jim Bishop and Simon Brewer several times and finally became a member after an incredible Hurricane Katrina chase with Simon Brewer
Some of Reed's most memorable chases include: May 3,1999 F5 Moore, OK tornado, June 24,2003 F4 Manchester, SD tornado, Hurricane Floyd North Carolina Landfall in 1999, Hurricane Frances Florida Landfall in 2004, Hurricane Katrina Louisiana Landfall in 2005, and Hurricane Rita Landfall in 2005.
Reed will most likely chase until he no longer has eye sight!

I met Reed yesterday on internet. I asked him As the monsoon was quiet earlier this time in india could that lead to formation of the cyclone Aila..

I see his programme regularly and am a fan of his way of work and decency as against his own teacher Josh.........

3] DILEEP SADHANKAR--

Dileep sir was my teacher for one year at my school in nagpur. He taught us maths in 8th grade. He teaches computer science. I am his favourite student. He has a unique style of teaching which enabled me to score highest marks in maths all the year in 8th standard... He has taken master's degree in computer science. He is extremely lovable person. He also participated in Nasa senior mission planeer contest with me and won the prize.He is now working as a lecturer. I met him in my school only.later we became friends. we often chat with each other...

He is a very helpful person.

In this way i dedicate my weather study to Reed,Earthquake study to Jim sir and mathematics study to Sadhankar sir.......

I like to thank Reed and Jim sir for giving their time for my questions and articles.

i pray God all do best in their fields and come out with success!!!!

Bowing before all

Akshay

A SIGH OF RELIEF.ATLANTIS WELCOME BACK HOME

ATLANTIS WELCOME BACK HOME

thank you Nasa

official counts
Landed:Sunday, May 24, 2009, 11:39 a.m. EDT Landing Site: Edwards Air Force Base Mission Elapsed Time: 12 days, 21 hours, 37 minutes, 9 seconds Official Landing Times Main gear touchdown:11:39:05 a.m. EDT Nose gear touchdown:11:39:15 a.m. EDT Wheels stop:11:40:15 a.m. EDT Total miles:5.276 million

PERFECT TOUCHDOWN..

CHUTE DEPLOY

Missing link between humans and higher primates found

In  a new book, documentary, and promotional Web site, paleontologist Jorn Hurum, who led the team that analyzed the 47-million-year-old fossil seen above, suggests Ida is a critical missing-0link species in primate evolution.

The fossil, he says, bridges the evolutionary split between higher primates such as monkeys, apes, and humans and their more distant relatives such as lemurs.

"This is the first link to all humans," Hurum, of the Natural History Museum in Oslo, Norway, said in a statement. Ida represents "the closest thing we can get to a direct ancestor."

Ida, properly known as Darwinius masillae, has a unique anatomy. The lemur-like skeleton features primate-like characteristics, including grasping hands, opposable thumbs, clawless digits with nails, and relatively short limbs.

"This specimen looks like a really early fossil monkey that belongs to the group that includes us," said Brian Richmond, a biological anthropologist at George Washington University in Washington, D.C., who was not involved in the study.

But there's a big gap in the fossil record from this time period, Richmond noted. Researchers are unsure when and where the primate group that includes monkeys, apes, and humans split from the other group of primates that includes lemurs.

"[Ida] is one of the important branching points on the evolutionary tree," Richmond said, "but it's not the only branching point."

At least one aspect of Ida is unquestionably unique: her incredible preservation, unheard of in specimens from the Eocene era, when early primates underwent a period of rapid evolution. (Explore a prehistoric time line.)

"From this time period there are very few fossils, and they tend to be an isolated tooth here or maybe a tailbone there," Richmond explained. "So you can't say a whole lot of what that [type of fossil] represents in terms of evolutionary history or biology."

In Ida's case, scientists were able to examine fossil evidence of fur and soft tissue and even picked through the remains of her last meal: fruits, seeds, and leaves.

What's more, the newly described "missing link" was found in Germany's Messel Pit. Ida's European origins are intriguing, Richmond said, because they could suggest—contrary to common assumptions—that the continent was an important area for primate evolution

courtesy. National Geography

TIme Travel,speed=distance/time

My home 2

Civil Lines

Nagpur

sorry for not writing article since many days.I was helpless as i had no time.

Time travel

Let us suppose that i am travelling to hong kong from nagpur by flying above the continent asia over bangkok,etc...<flight a>

if i live at 12am on 21st jan so i shall reach there by 7am ist...  

but if a flight takes a polar route  <flight b>so it might reach by 9 am indian standard time on the same day.let us suppose  both the flights take off from nagpur airport at the same time. but one flight reaches earlier by taking different flight.we have to assume that velocities of both flights is constant. so if we see the flight a reaches fast as it follows a perpendicular route.and the flight b takes a curved route,so it reaches late. if we see the time both the flights took off at the same time but dont reach the same time. there is a difference of about 2 hours in landing time. if we consider that the flight a lands at 7 am so it will land in present time. but considering flight a's landing time.we see flight b arrives in future.<relative to 7am.>

but there is relativity. so we cant observe much.but there is difference.like

at 7 am if a man dies and the flight reaches 2 minutes before his death.but flight b will reach in future time.so there is a time travel.

now where does time change

despite of departing at same time, the flights arrive at different time by moving with constant velocity. let us assume that there is a countdown timer placed at the runway which shows T-3 hours for flight a.the countdown timer placed on runway which shows T-3 hrs for both the flights. at a particular position there will be difference in countdown timers if the pilot reports abt change in route.so it will say T-5 hours.

if we want that both the flights following the routes mentioned above land on the same time then we will have to make velocity change like acceleration for flight b. 

so countdown timer thus again can show same time. 

thus there can be time travel as the flight b will arrive in future to the time 7 am of landing flight b.

example b

consider a square.

not the geometric one where 4 roads intersect each other. 

now let us suppose one vehicle is coming from the east,other is from the west. distance for the vehicle coming from east is 2oom to the square and the other vehicle is 100m. so the vehicle b will arrive first if both the vehicles move at the same speed. in this case if we see that if there is a change in velocity,the two vehicles can collide.in other words their time overlap. 

but time for the world is same but not between the two vehicles. thus we can say time changes with the distance or speed.. that is speed=distance/time

or time=distance x speed.if both are equal then time is same...

thus this explains einsteins principle of time travel by velocity of light... 

in the cases of vehicles we can measure time with the distance to the square on y axis and y' axis....

time will also be measured on y axis and y'axis. 

this variation in time enables two flights or cars to cross each other diagonally without dashing..

As they have different  time they have different speed. and vice versa.this can enable space travel..

can  a body moving with a curved path than a straight path and travelling with the velocity of light can travel more in future than by perpendicular road?

i shall answer on it later

Akshay Deoras

What is time travel through a Wormhole

My home 2

Civil lines

nagpur

06/05/09

modified calculation of the article"spinning galaxies can form a shortcut to time travel"

 yest.. i was drinking milk and stirring the milk. as all know we see a hole that directly goes to the bottom of cup passing through the milk but not touching it. i.e not getting wet. similar is the eye of tornado. the tornada is nothing but air spinning in circular manner i.e clockwise in s.hemisphere and anti in northern hemisphere. the eye is the most dangerous place where the pressure and wind speed is maximum because of its configuration. but if we throw any object from helipcopter in the eye of tornado then that directly will fall down on the ground. such tornadoes is not possible in space<>.
so we can say that when a liquid,gaseous,solid object gains circular velocity then it produces a pit. this can be the answer to the wormholes or the space shortcuts.
we know the process of fussion of any cellestial objects. they are attracted by the gravity then they move circular to each other then they move away. this process continues till they collapse on each other. galaxies are enormous. if in future such thing is ought to happen because of configuration of universe. so a passage may form which can take us to some new place. regarding the passage,we can say we can go for time travel.

Now what exactly will happen is similar to what can happen in case of a wormhole.

if we use atomic clocks to study the time relation,like we will be keeping one clock at the mouth of the wormhole and the other near its other end .so we will find that the clock near the wormhole's other part will run faster than the clock near the wormhole which is near to the surface of earth .if we keep the clock inside the wormhole and the other also inside the mouth of wormhole then there will be no change of time. but when viewed externally,then there will be... so there will be time travel.

This is a key to the time travel..

This can enable us to go in past as well.i shall talk more about it in the next article...

Akshay Deoras

This 

Everything I learnt

my home
pratap nagar
nagpur

50TH POST OF www.akshaydeoras.blogspot.com

Before starting i want to thank all my readers for increasing my interest for writing articles.recently i saw,i got the readers from all over the world like New jersey,Cailifornia,sweden,netherlands,singapore,malaysia,New South Wales,Canada and Pune and Akola. I thank the respective readers for supporting me.

today o am going to write a non-scientific article as it is the 50th post. i will be telling about myself.

Nothing was known to me till 2002

  life was normal

 but i went to see swades in theater

  my father used to tell me abt international space station

  and surprisingly i had no idea abt it

  after 2003 interesrt was there

 but i never turned on internet to read the concepts

  it was thombre sir

  who introduced me to this world by giving a lecture on wormholes

  then i decided to go with it

  in last year's summer

 i used to remain awake till 1;30 in night 

starting from 10 30 pm

  i used to study on internet

  with einsteins concepts

  later i turned on to 12std physics

 also i make dummy models of satellite and launch them by hand

  recently i have made yest itself till 12 30 in the night

  

  then i was on call with my friend

  he asked me abt time travel

  i said something

 which my brain liked

  i immediately called thombre sir abt it

  he said to write an article on it

  and then i showed it to him

  he stood up with joy

  and a mysterious expression on his face

  it was a feeling of happiness

and then in nov 08 i opened my blog

  and till date 43 articles have been written

  in between i gave lectures in science club

  it has become a part of life

  after studies and in my free time i do it

                   i also knw the sky very well

  planets,stars and all and spend most of the time in observing them.now i have got many visitors.so i can write more articles....
about my sir--I met thombre sir in my school.It was an off period and he came to my class and started to tell information about the Black holes.Just before two days i had watched a science programme on black holes on discovery channel so i knew something about it. we discussed a lot.Since then we have constant discussion on phone,email or in school about various concepts.He taught me how to see the other side of science and how to understand the science. Everyday of school,before 15 minutes to the recess over bell,we talk with each other.He helped me in getting the first prize at the District level Debate competition. He is currently doing Ph.dHe is a Gold medalist in physics and teaches computer science in my school.I thank him for all the things and dedicate this 50th post to him...
The persons who inspired me--Albert Einstein and Stephen hawkings.I always wonder how intelligent einstein would have been as he introduced a theory :relativity" which earlier only few people understood.
I DEDICATE THIS ARTICLE TO THOMBRE SIR,STEPHEN HAWKING AND ALBERT EINSTEIN.....

Why is Earth's surface hotter than its atmosphere

My home 2

civil lines

nagpur

02/05/09

Series-- Science in our daily life.

article- why is earth's surface hotter than its surface......

My today's article is the 49th post and it is the discussion on why is earth's surface hot than its atmosphere.i mean when we travel by planes we see outside temperature is appx.. -20 degree celcius inspite of being closer to the sun . the answer to this is

when the sun's rays fall on the earth some of them is absorved by the water bodies,most of them are reflected back to the space but the ozone layer stops it from escaping.this is the green house effect. so when we are standing on the earth,we experience maximum heat because the rays of sun reflect back after hiting the surface and we are the surface only.if we go to aaproximately 30000ft above,the reflected rays scatter and are not concenterated together. so intensity of heat carried by them is less than on the earth.so we feel cold

about 174 pw then the sun's rays are there and they cause damage to the skin but they dont increase the heat.. so it is cold.also on the surface many temperate winds are blowing.they also carry hot winds.so they warm up the land and there is saturation as there are obstacles like mountains and all. in sky there is no such thing. and the temperature is less so the winds are denser and cause sort of jet streams. it can be noticed in the case of desert.when u go to deserts in the morning it is hot but by the night it is cool as sand heats and cools down quickly. so the landform affects temperature. and the surface of earth is hotter than its atmosphere despite of being closer to the sun

Nagpur is located below the tropic of cancer.during summer season the sun's rays are perpendicular to the tropic of cancer.so it is extremely hot in nagpur in summer.the heat has broken a record of 60 years.the temperature is about 47.4 degree celcius nowadays

the series-science in our daily life ends here..

the 50th post will come within 2 days

Akshay Deoras

Why will not pluto and neptune collide

pluto, which is only about two-thirds the size of our moon, is a cold, dark and frozen place. Relatively little is known about this tiny planet with the strange orbit. Its composition is presumed to be rock and ice, with a thin atmosphere of nitrogen, carbon monoxide and methane. The Hubble Space Telescope has produced only fuzzy images (above) of the distant object.

Pluto's orbit

Pluto's 248-year orbit is off-center in relation to the sun, which causes the planet to cross the orbital path of Neptune. From 1979 until early 1999, Pluto had been the eighth planet from the sun. Then, on February 11, 1999, it crossed Neptune's path and once again became the solar system's most distant planet. It will remain the ninth planet for 228 years.

Pluto's orbit is inclined, or tilted, 17.1 degrees from the ecliptic -- the plane that Earth orbits in. Except for Mercury's inclination of 7 degrees, all the other planets orbit more closely to the ecliptic.

Interestingly, a similar thing happens with Jupiter's moons: Many orbit on the ecliptic, but some are inclined from that plane.

Did you wonder: Will Pluto and Neptune ever collide? They won't, because their orbits are so different. Pluto intersects the solar system's ecliptic, or orbital plane, twice as its orbit brings it "above," then "below" that plane where most of the other planets' revolve -- including Neptune. And, though they are neighbors Pluto and Neptune are always more than a billion miles apart.

Is it a planet at all?

Some astronomers think Pluto may have wandered into the system of planets from a more distant region known as the Kuiper belt -- a region beyond the orbit of Pluto thought to contain Pluto-like objects and comets that orbit the sun in a plane similar to the planets of the solar system.

If that's the case, Pluto is not a planet at all, but is probably more like a large asteroid or comet. Some have also suggested that it may have once been a moon of Neptune and escaped.

The International Astronomical Union, the organization responsible for classifying planets, gives these reasons for questioning Pluto's status as a planet:

• All the other planets in the outer solar system are gaseous, giant planets whereas Pluto is a small solid object
• Pluto is smaller than any other planet by more than a factor of 2.
• Pluto's orbit is by far the most inclined with respect to the plane of the solar system, and also the most eccentric, with only the eccentricity of Mercury's orbit even coming close
• Pluto's orbit is the only planetary orbit which crosses that of another planet (during 1999 Pluto will again cross Neptune's orbit, thus regaining its status as the most distant planet)
• Pluto's satellite, Charon, is larger in proportion to its planet than any other satellite in the solar system.

Pluto has one moon, Charon, which was discovered in 1978. The satellite may be a chunk that broke off Pluto in a collision with another large object.

Pluto Data (averages):

Diameter: 1,430 miles (2,301 kilometers)
Time to rotate: 6 days, 9 hours
Orbit: 248 Earth years

Compared to Earth:
Mass: 0.2% of Earth's 
Diameter: 18% of Earth's
Distance from sun: 39 times as far

PLUTO: HADES IN ANCIENT MYTH, ROMAN GOD OF THE UNDERWORLD

Pluto was not discovered until 1930, by amateur American astronomer Clyde Tombaugh. Since Tombaugh's death in 1997, many astronomers have increasingly urged the International Astronomical Union, which names celestial objects, to strip Pluto of its status as a planet.

courtesy

www.space.com

Akshay Deoras