Thursday, August 12, 2010

Meteor shower August 2010: Perseid meteor shower tonight illuminate the sky

Many people have already witnessed the meteor shower during the last two days and with shower continuing even now, the laziest ones among us would be able to watch and enjoy them.

But you may not be able to experience good meteor shower if the place is cloudy or if you fail to reach the place in advance.

But even if you are not able to watch them in the sky falling all around you and illuminating the sky don’t lose your heart, you may still be able to watch it tonight.

Meteoroid streams are caused by the debris of comets. The stuff of comets comes from interstellar space where the materials are assembled in the atmospheres of stars and in the dense molecular clouds of gas and dust between the stars.

The comets are build of that material and were formed in the outer parts of the solar system, in regions beyond Saturn's orbit, at the time of the birth of our solar system.

How meteoroids leave the comet is a matter of research. When comets approach the Sun, the ices evaporate and the dust particles are ejected into orbit in geyser like fountains.

Comet nucleus is the mountain of ice and dust (mostly dust) that is at the center of a comet. This picture is the nucleus of comet 1P/Halley.

The nucleus of this comet was photographed by the Giotto Satellite in 1986. It has a 2-3 times larger nucleus than 55P/Tempel-Tuttle.

Comet 55P/Tempel-Tuttle is the parent of the Leonid meteoroid stream. The orbit is shown in the graph above.

Persistent train is the long enduring emission that remains in the path of a bright fireball once the afterglow has faded. Persistent trains can last for 1-30 minutes (typically 4-6 minutes) at an apparent brightness of +4 to +5 magnitude.

The optical light of these long enduring trains is from Na (sodium) and FeO (iron oxyde), from airglow-type chemistry of the recombination of oxygen atoms and ozone molecules that is catalised by sodium and iron atoms.

Persistent trains last long enough to enable telescopic studies of the path of a meteor. Upper atmosphere winds distort the shape of the train.

Meteors are better known as "shooting stars": startling streaks of light that suddenly appear in the sky when a dust particle from outer space evaporates high in the Earth's atmosphere.

A Patriots Fan's Reaction to Jets Hard Knocks



If you're a Patriots fan like me but couldn't bear to watch episode one of Jets Hard Knocks, I've taken one for the team in an effort to supply you with only the comical and anti-Jets moments. We'll spare you of all the Jet propaganda, brashness and actual highlights that we're led to believe actually happened in the last week.

What we learned after the jump.

Star-divide

First things first, I really do enjoy Rex Ryan. He's a players coach and pretty much the antithesis of Bill Belichick. He brings balance to the rivalry. I found myself saying "wow, that would never happen in Patriots camp" a lot.

Rex is everything you think he is, wielding a brash, "here we come" attitude and a sense of humor the players can apreciate. He keeps things loose, and I wonder if it's too loose.

Clearly when the Patriots and Jets meet they will be two teams who were forged at opposite ends of the spectrum.

Aside from the outstanding production value there was a lot of high comedy with the old J-E-T-S.

You might not believe this but Rex Ryan actually has quite the sweet tooth. He's even gone so far as to institute fines for eating junk food, I guess in an effort to save him from bursting his lapband.

Darrelle Revis' shadow looms over Jets camp more than I thought it would, which seems kinda dumb in retrospect, but as a Patriots fan I'm just numb to it. We move on no matter who's not in camp. Whether it's Logan Mankins or Deion Branch or Richard Seymour or Shawn Crable (I miss you, crazy legs).

Now I'm not so sure that Revis is back with bells on in episode three. Though I still kinda think this is somehow all just for the cameras. Mike Tannenbaum better stop pulling on what little hair he's got left up top or it's all gonna be gone. Revis is gonna make him bald because it doesn't sound like the sides are even close.

They must've run every single completion Sanchez has thrown in camp because his numbers have been pedestrian at best and he looked like next coming of Chad Pennington on the show. Brian Schottenheimer is even giving Sanchez leadership lessons on the side which had to be the unintentional comedy high-water mark for this episode.

Of course they had to roll in Jet legend Joe Namath, who was wearing his shorts up to his nipples. Of course Joe instantly diagnoses Sanchez's problem after two botched snap exchanges. The Jets staff then somehow let Joe into a film session where he pointed out that Santonio Holmes wasn't running hard enough through his routes. All the coaches looked like they were just paying lip service and laughing it off. But come on, isn't this the only Jet alive who's won a Super Bowl. He must know SOMETHING, right?

You know what I'm over? The Mark Sanchez sprinting up the field holding his index finger to the heavens as if to say "we are the number one team". He did it against us last season but I thought it was just a first time thing. It isn't. He did it all season long and now he's doing it in practice. Act like you've been there before dude.

Quick Terminator lesson for the Jets and their fans. John Conner wasn't the Terminator. He was the prophetized leader of the human resistance against Skynet. The Terminator was named T-800. You should really be calling him Edward Furlong, or Christian Bale, or even Nick Staal.

I have to say it is fun to get a look at the inner workings of an NFL franchise, especially the one I most want to beat. The Jets do have a lot of questions that not even a slick HBO production can cover up, but they will certainly be interesting to follow and fight.