interesting fireball video (fireball changes directions)

bmaone23 · Feb 16, 2008

http://www.wftv.com/video/15310845/index.html

fear · Feb 16, 2008

Freaky. At one point it starts moving upward. It's either a hoax or something pretty wild. <div class="Discussion_UserSignature"> </div>

fear · Feb 16, 2008

Here's another version of the video. The HipHop group added a silly intro and some music but the picture is nicer. <div class="Discussion_UserSignature"> </div>

jsmoody · Feb 16, 2008

Goodness gracious! <div class="Discussion_UserSignature"> No amount of belief makes something a fact" - James Randi </div>

bearack · Feb 16, 2008

I must admit, this is one of the most intriguing UFO videos that I have seen. Looks pretty authentic while not really able to explain the movement. <div class="Discussion_UserSignature"> <img id="06322a8d-f18d-4ab1-8ea7-150275a4cb53" src="http://sitelife.space.com/ver1.0/Content/images/store/6/14/06322a8d-f18d-4ab1-8ea7-150275a4cb53.Large.jpg" alt="blog post photo" /> </div>

MeteorWayne · Feb 16, 2008

Well it's not really a UFO, it's one or more fireballs. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

a_lost_packet_ · Feb 16, 2008

It's a fireball. Now, I ask the audience, if this was a "Flying Saucer" would you underwrite the insurance for it? Somehow, I don't think you would. "Hello silly Earth person. Would you like to take a ride in my inflammable, crash-prone flying craft?" "No thanks, Zork. I'll take the bus." <div class="Discussion_UserSignature"> I put on my robe and wizard hat... </div>

fear · Feb 16, 2008

I thought fireballs were essentially just meteors and I thought meteors maintained a smooth course consistent with gravity. Do they really just fly around aimlessly to the point of reversing course now and then? <div class="Discussion_UserSignature"> </div>

MeteorWayne · Feb 16, 2008

It is unclear what is being seen in these videos. There is no unequivocal statement from where and when they were taken I suspect there are more than one views of the same event from different perspectives. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

fear · Feb 16, 2008

<blockquote>In reply to:<hr />There is no unequivocal statement from where<hr /></blockquote><blockquote>In reply to:<hr />in Tampa, heading south on I-275 link)<hr /></blockquote><blockquote>In reply to:<hr />and when they were taken<hr /></blockquote><blockquote>In reply to:<hr />On Jan 20th (link)<hr /></blockquote><blockquote>In reply to:<hr />I suspect there are more than one views of the same event from different perspectives.<hr /></blockquote>From 1:10 to 1:20 in the version I posted you can clearly see that the object curves around and reverses course. At 1:26 to 1:30 it appears to be fighting the pull of gravity (perhaps it's very far away and this is just an illusion, though). At 1:40 to 1:41 it reappears from beneath the horizon and is (apparently) going almost straight up. Throughout the whole video it goes in four different directions. <div class="Discussion_UserSignature"> </div>

a_lost_packet_ · Feb 16, 2008

fear - From 1:10 to 1:20 in the version I posted you can clearly see that the object curves around and reverses course. At 1:26 to 1:30 it appears to be fighting the pull of gravity (perhaps it's very far away and this is just an illusion, though). At 1:40 to 1:41 it reappears from beneath the horizon and is (apparently) going almost straight up. Throughout the whole video it goes in four different directions. Ya know, roads curve. If it was a very close fireball, there could have been a noticeable change of perspective. However, let's look at it like this: It's on fire. It's breaking apart in midair. It has every characteristic of a classic fireball. Regardless of whatever it is, it is now an insurance claim. I didn't see anything in the vid that suggested it was anything other than a normal fireball. <div class="Discussion_UserSignature"> I put on my robe and wizard hat... </div>

fear · Feb 17, 2008

Bah, I dismiss your answers as nonsensical and snarky.<blockquote>In reply to:<hr />If it was a very close fireball, there could have been a noticeable change of perspective.<hr /> </blockquote> It dipped below the horizon behind a city in the background. This would be indicative of an object more than a few hundred feet away. In order for a perspective change of right to left they would have had to move at incredible acceleration across something like 50 miles. It looked like they were moving no more than a steady 65 mph to me...<blockquote>In reply to:<hr />Regardless of whatever it is, it is now an insurance claim. I didn't see anything in the vid that suggested it was anything other than a normal fireball.<hr /> </blockquote>It was moving all over the place. Haven't you heard of that guy Newton and the gravity thing he wrote about? It usually only pulls in one direction (or so I've been told). It occurs to me that it may not be fighting gravity the way it looks like. Perhaps it is at extreme distance and falling in to earth's atmosphere at an angle while corkscrewing. If they were heading south in Tampa and the scenery was moving to the right side of the screen then they would have been looking out the passenger's side to the right in the western direction. So, the object could have been hundreds of miles away over the Gulf of Mexico (moving from west to east) falling to a position slightly west of them while corkscrewing. This could give the illusion that it's listing side to side and up and down while in reality it's moving towards the earth at all times (as an ordinary space rock would) and just going in a wide circle as it falls. If this is right, then we're only really seeing the head-on view of the tale in this video. It must've looked ridiculously gigantic to anyone directly beneath. I bet the fishermen or the oil rig guys in the gulf would have seen it taking up half the sky. <div class="Discussion_UserSignature"> </div>

fear · Feb 17, 2008

You know, I've thought about it some more and I think my guess in the last post about seeing the object head on is probably wrong. I was thinking of what it would be like to see something like this head on. It might appear to wobbling (and fighting gravity) to an observing seeing it head on, while in reality it's just circling as it falls down. However, all the corkscrewing meteors that I've seen pictures of all tend to make really tight oscillations; they don't just go all over the place. I've read some people expressing doubt that meteors even cork screw at all, and that the appearance of it is just due to camera shake. So, I still can't think of a good reason for why that thing should be changing direction. Can anyone imagine an actual meteor like this or this entering the atmosphere at 40,000 MPH and then spontaneously just meandering around? <div class="Discussion_UserSignature"> </div>

fear · Feb 18, 2008

I found out what it was: this guy <img src="/images/icons/laugh.gif" /> <div class="Discussion_UserSignature"> </div>

Smersh · Mar 9, 2008

I found out what it was: this guy Posted by fearI have to say fear, that guy, or someone like him, seems like a very logical explanation for this.I have to admit, I was always under the impression too that normal meteors enter the atmosphere at an unchanging angle, with no change of direction whatsoever.    <div class="Discussion_UserSignature"> <h1 style="margin:0pt;font-size:12px">----------------------------------------------------- </h1>Lady Nancy Astor: "Winston, if you were my husband, I'd poison your tea." Churchill: "Nancy, if you were my wife, I'd drink it."Website / forums </div>

MeteorWayne · Mar 9, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>I found out what it was: this guy Posted by fearI have to say fear, that guy, or someone like him, seems like a very logical explanation for this.I have to admit, I was always under the impression too that normal meteors enter the atmosphere at an unchanging angle, with no change of direction whatsoever.    Posted by smersh</DIV>In general that is true, remember meteors are traveling at least 25,000 mph when they hit the atmosphere; that's about 7 miles a second.Turns are hard at that speed!There is some change seen as they decelerate and are affected by gravity (i.e. the path becomes more vertical). <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

Smersh · Mar 9, 2008

In general that is true, remember meteors are traveling at least 25,000 mph when they hit the atmosphere; that's about 7 miles a second.Turns are hard at that speed!There is some change seen as they decelerate and are affected by gravity (i.e. the path becomes more vertical). Posted by meteorwayneThanks MW, I figured that it was something like that. In fact, I saw a very bright fireball myself a couple of weeks ago, that seemed to behave a little oddly, one night when I was travelling with my wife through the Peak District, in the north of England, on our way to Buxton. It appeared first as a bright ball of light, as though it was heading directly towards us for a split second, then seemed to go off sideways, with a very bright tail that grew brighter, before disappearing. Quite an amazing sight actually. Going back to the subject of this thread, here is some confirmation, if any is needed, that fear is correct in his conclusion about the air show pilot, Bill Leff:http://www.wftv.com/news/15331679/detail.html <div class="Discussion_UserSignature"> <h1 style="margin:0pt;font-size:12px">----------------------------------------------------- </h1>Lady Nancy Astor: "Winston, if you were my husband, I'd poison your tea." Churchill: "Nancy, if you were my wife, I'd drink it."Website / forums </div>

SomersetSmile · Mar 19, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>In general that is true, remember meteors are traveling at least 25,000 mph when they hit the atmosphere; that's about 7 miles a second.Turns are hard at that speed!There is some change seen as they decelerate and are .... Posted by Smersh</DIV> I would think that at that speed hitting the atmosphere would be like hitting a brickwall and the object would just skip off.   Further, at some point an object travelling less than a critrical speed would not be shrouded by its shock wave which would allow explosive vaporization along its leading edge which in turn could make it change directions.   I saw a recent news story about a rocky meteorite that left a crator and came in faster than current theory says it should have.   The theory there was that the rocky meteor came in so fast that the shock wave shrouded / captured its core, thereby preventing it from braking up.

MeteorWayne · Mar 20, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>I would think that at that speed hitting the atmosphere would be like hitting a brickwall and the object would just skip off.   Further, at some point an object travelling less than a critrical speed would not be shrouded by its shock wave which would allow explosive vaporization along its leading edge which in turn could make it change directions.   I saw a recent news story about a rocky meteorite that left a crator and came in faster than current theory says it should have.   The theory there was that the rocky meteor came in so fast that the shock wave shrouded / captured its core, thereby preventing it from braking up. Posted by SomersetSmile</DIV>Well here's some facts. Asteroids or meteoroids are traveling between 11.2 and about 72 km per second. That's 7 to 45 miles a second. One reason the atmosphere does not act like a brick wall is that it is very thin at the top, and thickes at the bottom. Yes, some objects can bounce off, but only if they hit at a very shallow angle, less than 5 degrees to the top surface of the atnosphere. See the Grand Teton Fireball.At these speeds, even an explosive disruption cannot change the path of a meteoroid substantially. One effect that is observed is that the object does decelerate as the atmosphere slows in down; this causes the path to become more vertical. In fact, once it decelrates enough, it falls straight down.Meteorite falls, from larger objects that explode in the atmosphere (from the pressure difference between the front and back edges of the object) typically are in an elliptical shaped region, elongated in the original direction of travel.As for the South American meteorite I believe you are referring to, much remains speculation. I'm still waiting for some serious journal articles about it to see what the scientific facts are. If the sketchy reports are to be believed it did shatter as surrounding areas had pieces hit their roofs, however no rigorous analysis has been completed to explain the entire event.I look forward to when that report comes out. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

MeteorWayne · Mar 20, 2008

Poking around today I found this about the peruvian meteorite.http://www.brown.edu/Administration/News_Bureau/2007-08/07-113.html "Peter Schultz, professor of geological sciences at Brown University and an expert in extraterrestrial impacts, went to Peru to learn more. For the first time, he will present findings from his travels at the 39th annual Lunar and Planetary Science Conference in League City, Texas, in a talk scheduled for 2 p.m. on March 11, 2008. Brown graduate student Robert “Scott” Harris collaborated on the research, joined by Jose Ishitsuka, a Peruvian astrophysicist, and Gonzalo Tancredi, an astronomer from Uruguay.What Schultz and his team found is surprising. The object that slammed into a dry riverbed in Peru was a meteorite, and it left a 49-foot-wide crater. Soil ejected from the point of impact was found nearly four football fields away. When Schultz’s team analyzed the soil where the fireball hit, he found “planar deformation features,” or fractured lines in sand grains found in the ground. Along with evidence of debris strewn over a wide area, the shattered sand grains told Schultz that the meteorite had maintained a high rate of speed as it shot through the atmosphere. Scientists think it was traveling at roughly 15,000 miles per hour at the moment of impact.“Normally with a small object like this, the atmosphere slows it down, and it becomes the equivalent of a bowling ball dropping into the ground,” Schultz said. “It would make a hole in the ground, like a pit, but not a crater. But this meteorite kept on going at a speed about 40 to 50 times faster than it should have been going.”Scientists have determined the Carancas fireball was a stony meteorite – a fragile type long thought to be ripped into pieces as it enters the Earth’s atmosphere and then leaves little more than a whisper of its journey. Yet the stony meteorite that struck Peru survived its passage mostly intact before impact. “This just isn’t what we expected,” Schultz said. “It was to the point that many thought this was fake. It was completely inconsistent with our understanding how stony meteorites act.”Schultz said that typically fragments from meteorites shoot off in all directions as the object speeds to Earth. But he believes that fragments from the Carancas meteorite may have stayed within the fast-moving fireball until impact. How that happened, Schultz thinks, is due to the meteorite’s high speed. At that velocity, the fragments could not escape past the “shock-wave” barrier accompanying the meteorite and instead “reconstituted themselves into another shape,” he said.That new shape may have made the meteorite more aerodynamic – imagine a football passing through air versus a cinderblock – meaning it encountered less friction as it sped toward Earth, hitting the surface as one large chunk.“It became very streamlined and so it penetrated the Earth’s atmosphere more efficiently,” Schultz said. EDIT: See Jon Clarkes Post on this event in SS&A <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

interesting fireball video (fireball changes directions)

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