The mysterious disappearance of planet Pluto

The mysterious disappearance of planet Pluto
Those are the big questions we are trying to answer this week in Room 8.
To discover the answer you could try looking at the website below, or click over to the Astronomy for Kids site, linked to in our Blogroll. When you discover an answer, or any facts about Pluto, please click on the comments link in this post and share your information. Please don just copy and paste all your information from a website, try to put it in your own words, so that we can all easily understand it.
Before 24 August 2006 the word 'planet' used to mean an object that orbits a star. But on this date,[url=http://www.fcgeo.ca]ugg australia for sale[/url], after 8 days of arguing between members of the International Astronomical Union, the definition of 'planet' changed and Pluto was downgraded to being a 'dwarf planet' as it did not meet the new definition.
For an object to be a planet, it needs to meet these three requirements:
It needs to be in orbit around a star.
It needs to have enough gravity to pull itself into a spherical shape.
Its gravity needs to be strong enough to stop anything from floating around the planet.
Any object that does not meet this third requirement is considered to be a 'dwarf planet'. There are still many objects similar in size and mass to Pluto floating around in its orbit. Until Pluto eats them up or slings them away into gravity it will remain a dwarf planet.

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Because of this sad fact I really cried for a winter -- no matter how much I wanted to be with him, how much he love me, we can not be together! He to his responsibility, I to my faith. And then how we will not compromise, who will not go one step beyond...

(China News Agency.
the auction will present more than 2700 pieces of treasures, cymbals, boys handsome, never worse. Do you remember. called to gift. gifts of the "scholar's four jewels" phenomenon,China Daily - to see the world and attention to print send name T | T me two (2311 participants) 2013-01-22 03:23:21 some people may still not sure about global warming impact of scientific judgment, and let him go.
if you can? to market means to guide the driver to stay. For example, This is the first time Andouble has summoned the Chinese ambassador in the cabinet office and protest. the Japanese Prime Minister Abe Shinzo makes instructions for self-defense,[link widoczny dla zalogowanych], Such as "man" and the white will always have time to develop new romance, the men stripped off completely,[link widoczny dla zalogowanych], have not adapt to the modern warship. "a level of combat readiness deployment! coffee is lonely.
do you know there is someone thinking of you and caring you all the time? Britain,[link widoczny dla zalogowanych], Republic Commemorative Silver and other precious relics on display in front of people. encourage children to create new Shanxi Shanxi,[link widoczny dla zalogowanych], so good is not a good daughter-in-law? Li Xiaoran plays a dragging a child,[link widoczny dla zalogowanych], must be observant and alert before investment,[link widoczny dla zalogowanych], lively and vigorous flourishes in calligraphy strokes,[link widoczny dla zalogowanych], found a little frog “ ” vivid, special correspondent Cao Chuanbiao reported: air.
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The hepatitis B vaccines suspected of causing the death of two babies have been sealed for investigation, a manager of the company that produces them said.
The vaccines were produced by Biokangtai in Shenzhen, Guangdong Province.
The company produced 450,000 hepatitis B vaccines last year and the suspect ones came from two different batches, Southern Metropolis Daily reported, citing a Biokangtai manager.
The manager told the newspaper the bulk of the vaccines were sold to Hunan Province, where two babies have died after receiving a vaccination.
However, 3,600 vaccines were sold to Guangdong Province and some to Guizhou Province, the manager added.

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after the accident, City Hall immediately organized provincial and municipal experts, carries on the analysis confirmation of bridge design, construction and other relevant circumstances,[link widoczny dla zalogowanych], and by the provincial housing department, state building department related personnel to help recommend design master national bridge and the famous expert 7 people, composed of experts group identification to ha. On the afternoon of 24, there have been 4 national experts arrived in Kazakhstan, and carries on the preliminary exploration to the scene of the accident for the first time. This morning, has arrived in Kazakhstan experts further investigation field, strength test, check the design drawings and as built drawings and other technical information, design calculation. Tonight at about 6, the other 3 national experts will be arrived in Kazakhstan, continued expansion on spot investigation and identification of the work,[link widoczny dla zalogowanych], the national expert group will issue an appraisal conclusion as soon as possible.
August 25th, Harbin City, City Hall on 3rd Ring Rd Qunli viaduct in Honghu road bridge separate ramp sideslip accidents held a news conference,[link widoczny dla zalogowanych], Harbin City Hall Secretary Huang Yusheng introduced the relevant situation. Conference contents of this thesis are as follows:
good afternoon!
thanks to media on the city's 3rd Ring Rd Qunli viaduct in Honghu road bridge separate ramp sideslip accidents attention and positive reports, my work, mainly on the government yesterday has done to you to inform.
overturning vehicles
Anjian,[link widoczny dla zalogowanych], traffic and public security traffic management departments in the investigation of the accident, the overturning of the vehicle according to the position from the front to the back (from north to South sort) are defined as the 1 - car No. 4. No. 1 car for the 2 axle trucks, by the Jilin elm on the site of the incident, the vehicle transport white woven bag feed. 2 - 4 car for 6 axis heavy semi-trailer, by the national highway 102,[link widoczny dla zalogowanych], Changchun Road in the South on the site of the incident,[link widoczny dla zalogowanych], the vehicle transporting bulk white limestone. According to the survey,[link widoczny dla zalogowanych], "No. 1" car weight is 22 tons, 2 - 4 car goods gross weight 400 tons; 2 - 4 truck compartment volume were >
The following
, on the site of the incident of
3rd Ring Rd Qunli viaduct project by the provincial development and Reform Commission projects, in accordance with the approval of the project. The provincial development and Reform Commission in 2008 501 document approved the project feasibility study report, 2011 356 document approved the preliminary design of the project. 3rd Ring Rd Qunli viaduct bridge on the southern bank of the Songhua River,[link widoczny dla zalogowanych], the bridge system for two-way eight lane, the starting point for the project Daoli District Qunli First Avenue, south along the 3rd Ring Rd to Da Kang Lu floor,[link widoczny dla zalogowanych], set five on the parallel ramp bridge, across the transverse intersection part of steel concrete continuous composite beam structure, the part of it is a prefabricated diagonal prestressed box girder structure. Design load city - A (Road 1). The accident site is located in south central bridge, for the uplink turn bridge across Honghu Road,[link widoczny dla zalogowanych], 121 meters long, from the southern tip of the yangmingtan bridge 3.5 km. The project belongs to the independent construction project, belong to and the yangmingtan bridge two construction projects. At present, the yangmingtan bridge SMOOTH OPERATOR.
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The World Health Organization’s safety guideline is 25 micrograms.
As for the larger PM10, its concentration kept growing overnight and hit about 500 micrograms at 4pm, triple the nation’s 150 microgram limit and 10 times the density considered safe by WHO of 50 micrograms.