Sunday, September 20, 2009
Wednesday, September 9, 2009
MOFFETT FIELD, Calif. -- NASA has identified the spot where it will search for water on the moon. Reporters are invited to attend the announcement of the target location where the Lunar Crater Observation and Sensing Satellite, or LCROSS, and its spent Centaur rocket will hit in October. The briefing will take place at 10 a.m. PDT, Friday, Sept. 11, in the main auditorium, Building N201, of NASA's Ames Research Center in Moffett Field, Calif. The event will be broadcast live on NASA Television and the agency's Web site.
Sunday, September 6, 2009
It really so Excited that telling you For the first time, NASA's Hubble Space Telescope has seen distinctly the "tenth planet," currently nicknamed "Xena," and found that it's only slightly larger than Pluto.
Though previous ground-based observations suggested that Xena's diameter was about 30 percent greater than Pluto, Hubble observations taken Dec. 9 and 10, 2005, showed Xena's diameter as 1,490 miles (with an uncertainty of 60 miles).
Pluto's diameter, as measured by Hubble, is 1,422 miles.
"Hubble is the only telescope capable of getting a clean visible-light measurement of the actual diameter of Xena," said Mike Brown, planetary scientist at the California Institute of Technology in Pasadena, Calif. Brown's research team discovered Xena, officially cataloged as 2003 UB313, and its results have been accepted for publication in the Astrophysical Journal.
Only a handful of images were required to determine Xena's diameter. Located 10 billion miles from Earth with a diameter a little more than half the width of the United States, the object is 1.5 pixels across in Hubble's view. That's enough to make a precise size measurement.
Image right: Located 10 billion miles away, but with a diameter that is a little more than half the width of the United States, Xena is only 1.5 picture elements across in Hubble's Advanced Camera for Surveys' view. Credit: NASA, ESA, and M. Brown (CalTech)
Because Xena is smaller than previously thought, but comparatively bright, it must be one of the most reflective objects in the solar system. The only object more reflective is Enceladus, a geologically active moon of Saturn whose surface is continuously recoated with highly reflective ice by active geysers.
Xena's bright reflectivity is possibly due to fresh methane frost on its surface. The object may have had an atmosphere when it was closer to the sun, but as it moved to its current location farther away this atmosphere would have "frozen out," settling on the surface as frost.
Another possibility is that Xena leaks methane gas continuously from its warmer interior. When this methane reaches the cold surface, it immediately freezes solid, covering craters and other features to make it uniformly bright to Hubble's telescopic eye.
Xena's takes about 560 years to orbit the sun, and it is now very close to aphelion (the point on its orbit that is farthest from the sun). Brown next plans to use Hubble and other telescopes to study other recently discovered Kuiper Belt objects that are almost as large as Pluto and Xena. The Kuiper Belt is a vast ring of primordial icy comets and larger bodies encircling Neptune's orbit.
Finding that the largest known Kuiper Belt object is a virtual twin to Pluto may only further complicate the debate about whether to categorize the large icy worlds that populate the belt as planets. If Pluto were considered to be the minimum size for a planet, then Xena would fulfill this criterion, too. In time, the International Astronomical Union will designate the official name.
you can find more information in www.nasa.govThis article taken from NASA web site ...
Monday, August 31, 2009
Wednesday, August 26, 2009
we faced in our study (specified in digital) dealing with Resistances specifically Carbon Resistances, and now I will try to explain to you an easy way to deal with resistance and using it later isA.
All you have to do is to deal with table .......
and this a picture of some kinds of Carbon Resistances
and this is an example of reading a value of a resistance
in this picture :
o First and second ring represents by number
o Third rig represent zeros of the number
o Forth ring represent tolerance rang
o If there is fifth ring, it will represent error value
o If there is sixth ring, it will represent temperature effect
Small Note : if the resistance you got have a No color tolerance >>> so you will read the resistance from the smallest distance between ring and edge
There are another type of Resistance like the wired Resistance and Variance Resistance .... etc
and the pdf below contain some description about Electrical components
I hope this post give you a good benefit and useful for you
Saturday, June 27, 2009
I recently bought laptop hp pavilion and notified that all the information available about Battery is the percentage ...... So I need to know also the remaining time and it is so easy just install this gadget called "Battery Monitor" from Microsoft site here
after set up you need to to set the check box "don't ask windows to provide the battery remaining time,calculate it instead" because system doesn't support to provide this information unless you set additional software from hp site ...
this is an easy way to get Battery remaining time , there are so many ways too....
Thursday, June 18, 2009
Egypt beat Italy 1 - 0 today in Confederations Cup 2009
homes the Egyptian player has record the goal from a coronal in the end of the first half "minute 40"
Italy is the world champ .... and we defeat them ......yeeeeees
Egypt Goal in Italy "the goal of the game"
Wednesday, June 10, 2009
Here you are one of the most amazing Google development and the newest one also Google Wave "Google Wave Developer Preview at Google I/O 2009", It is an open source project that you can edit in , it is really amazing but unfortunately, I don't have the time to explain as I have exam the day after tomorrow ...:) So watch this video and tell what you think about it .......
Friday, April 3, 2009
while I were taking a look around you tube videos I found these funny tricks videos :
This video is really a good tricks you may make it on your friends or your family ...... :)
This this also a good idea but it need more hard work to done properly ....
Hacking ...... do you wonder how and why it working ?..... See this
I can't stop laughing since I watch this one ......
So hopping these videos like you and tell me your opinion .... just leave a comment .
Thursday, April 2, 2009
Google doodle Competition that occurred in Egypt a few days before was ended successfully and left a smiles on the Orphans Celebrating of the Orphan's Day that takes place April 3rd 2009
Out of the 160 wonderful doodles designed by orphans on March 20th only 25 doodles were selected to the final stage that a public vote was opened for selecting the winning doodle!
And here we are have a winner !!!!
Google will appears the winning doodle tomorrow on the Google Egypt Home page .
This doodle made by :
The Winner Of 2009 Egypt Google doodle Competition with 15932 number of votes
Sameh Fadel (15 year) from el- shabat el-muslimate orphanage
this event will inspire a lot of you to do some thing cool like this trying to make your world a better one to live in .....................
Sunday, March 22, 2009
On 20th of March, Google organized the first ever Doodle for Google Competition in the Middle East. We invited over 160 orphans from different orphanages in Egypt at the GUC premises for a fun day. The kids drew AMAZING doodles that exceeded expectations. It was loads of fun, and most importantly, the kids enjoyed it!
Khaled AbulNaga, the Egyptian movie star, attended the event, and he was really touched by the children, and decided to sponsor one of them until he graduates from college!
Now, we want the whole world to know how talented are those Egyptian kids ... we want to share this link with everyone, and ask people to vote for the winning doodle. The voting will last until the end of March, so VOTE now and forward to all your friends.
VOTE NOW: http://www.google.com.eg/myegypt
forwarded from Eng. Amr Ebaid
Friday, March 13, 2009
The crew of the International Space Station has been forced to shelter in the Russian Soyuz capsule after a close call with a piece of space debris.
The three crew members are now out of danger and have returned to the ISS, Russian mission control officials told Reuters news agency.
Nasa said news of the debris threat had come too late for flight controllers to move the space station out of the way.
The scare comes just over a month after two satellites collided over Siberia.
Officials said the decision to move the astronauts had been a precaution and that the probability of an impact with the ISS had been low.
The space station's operating rules require crew members to be evacuated when debris is detected within a set distance.
Russian Yury Lonchakov and Americans Michael Fincke and Sandra Magnus took refuge for about nine minutes in the Soyuz TMA-13 escape capsule.
"The crew have returned to the station. They are in absolutely no danger and the debris has already passed by the station," a spokesman for Russia's mission control said after the incident.
"They didn't even close the hatch between the station and the Soyuz."
They were told the time of closest approach to the station would be 1639 GMT (1239 EDT).
The debris was about 1cm (0.3in) in size and part of an old "payload assist motor" that was previously on either a Delta rocket or on the space shuttle, Nasa public affairs officer Laura Rochon told journalists."The crew is safe and back in the space station and they are resuming normal operations," Ms Rochon added.
A Nasa spokesperson told BBC News that the space agency had been notified about the possible threat last night. The short lead time forced officials to move the crew into the capsule rather than manoeuvring the space station out of the way.
Two Americans and one Russian are aboard the station
"It's a bit like a swarm of bees in a beehive up there," said William Jeffs, a spokesperson at Nasa's Johnson Space Center in Houston, "the trajectories can sometimes be erratic."
It is unclear how many times crew members had been told to enter the Soyuz, but officials said this was "not the first" occasion. Flight controllers have moved the ISS eight times over the past 10 years in order to avoid debris.
Objects in orbit travel at tens of thousands of kilometres per hour. At these speeds, even a small piece of debris can knock out a satellite or, potentially, cause damage to the space station.
Experts recognise a growing threat to satellites and manned spacecraft from orbital debris and several events over the past three years have drawn attention to the problem.
On 10 February, the US Iridium 33 communications satellite collided with Cosmos 2251, a retired Russian intelligence comms sat.
About 18,000 objects bigger than 10cm are orbiting Earth
The chances of such an event had been estimated at millions or billions to one. The impact produced two expanding clouds of debris in intersecting orbits.
In January 2007, China caused international alarm when it destroyed one of its defunct satellites in a missile test. The US military estimates that this event created 2,500 new pieces of debris in orbit.
In total, there are said to be about 18,000 pieces of orbiting junk larger than 10cm in size.On Wednesday, Nasa postponed its launch of the space shuttle Discovery from Florida when a hydrogen leak was detected during fuelling.
This article taken from BBC news
And Hoping every thing be okay again in the International Space Station and the Crew be safe .
Sunday, March 8, 2009
يوم جنو لينوكس السادس فى الأسكندرية 2009
* Got tired of your computer becoming slower and slower over time and freezing every now and then ?
* Can't stop viruses and attacks on your computer ?
* Find the software and the system you use more expensive than the hardware ?
* Don't trust the software you use because you can't really discover how it works ?
* Want to discover new and better things ?
Then we DEFINITELY HAVE A SOLUTION for you..
Check this out ..
Time : Monday 09 / 03 / 2009
from 09:00 AM to 06:00 PM
Place : ITI center behind post building - mohatet masr - Alex
if you come early you will get ubuntu CD for free
I will write here all the events in sha2 allah after the EGLUG
ACM Organization volunteer in this event
Saturday, February 7, 2009
Alexandria January 31 2009 & February 01 2009 , Faculty of Engineering stadium .
Beginning >>> at 09:00 am Saturday January 31 2009 the ACM champion start , It continue about 2 days .
Really we have talents like Henary and Ronaldinhoo .....yeah believe me ,
but out of win or loss we have play and play and play to forget what it happen in the exams ?!!!!!
and Here we got a winner
Thursday, January 29, 2009
Really I am very happy to finish my Exams (the last one is the Programming) so you can imagine what is happen
After the exams finish , We always take some photos of our class , It makes us feel good after the exam .