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  • I would think breaking up would be more devastating regarding extinctions world wide

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    • Originally posted by Moulin View Post
      I would think breaking up would be more devastating regarding extinctions world wide
      Actually, likely to be less, but there are those variables.

      A single mass broken into several smaller will usually offer mopre surface area upon atmospheric entry to result in a greater mass reduction.

      Destruction in general is a basic equation of mass times velocity(near constant for any sized object due to Earth's gravity well) equals impact results. Reducing a large single mass into many smaller ones will usually increase the total surface area subject to abolation~atmospheric resistence=heat burn off and in essense usually mean a smaller mass impacting.

      However, spreading one LARGE impact into say a Dozen smaller impacts could result in a larger scale of destruction, especially from a human perspective/effects, but here the veriable is in the where and when. If mostly upon ocean could likely be "small scale", but if upon the right locations of hard land, say cities/urban areas could be very devestating.

      Net "bottom-line", not something to roll dice on if avoidable.
      TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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      • At about three mile size, this could be a killer, but at about two million mile distance, hardly "grazing" i'd say;
        https://www.dailystar.co.uk/news/lat...as-december-17
        TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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        • Originally posted by G David Bock View Post
          However, spreading one LARGE impact into say a Dozen smaller impacts could result in a larger scale of destruction, especially from a human perspective/effects, but here the veriable is in the where and when.
          Think MIRV (multiple independent reentry vehicles) used for nukes...
          Battles are dangerous affairs... Wang Hsi

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          • Originally posted by Pirate-Drakk View Post
            Think MIRV (multiple independent reentry vehicles) used for nukes...
            The thing about MIRVs is that the concept was that say six smaller devices each targeted to a specific ICBM silo were more likely to take out all to most whereas a single BIG one would have a smaller area of blast effect and only take out a few at best. Also, in large, sprawled "urban" areas you could damage the human structures over a larger square mile surface than with a single big one. The concept was also a way to get more "BANG" with fewer launch vehicles used.

            In the case of asteroid impact, I'm reminded of an "experiment" I did several years ago using one of my 12 guage shotguns. We were out in the "boonies" at a place were many people in the county would go to shoot and someone prior had left one of those old tub style washing machines out there. I found an aera where the surface had been shot at and then conducted my test;

            First I fired a round of birdshot, #7 or 8 IIRC, about three dozen pellets the size of a BB, and noticed a lot of dippled impressions in an area of about 3-4 inches diameter, but no penetrations.

            Next I fired a round of buckshot (00), about nine pellets the size of a 9mm pistol round. They had a smaller area of impact, but did penetrate through the first wall, but not the second.

            Next I fired a slug(solid) round. It made a 1-2 inch entry hole and slightly smaller exit hole on the other side wall.

            In asteriod impact terms;

            A 2-3 mile rock will create a smaller sized area of impact, but the deeper penetration and concentration of energy is such that the secondary effects, seismic disruptions and/or tsunamies could have near global reach and effect.(slug shot)

            A 2-3 mile sized rock, broken into several or more pieces will produce a larger sized area of multiple impacts, but the total scope of energy and damged will be lessor than of the original solid object. (buckshot)

            A 2-3 mile sized rock broken into dozens of smaller rocks will have an even larger area of surface impact, but the reduced penetration and energy will yield the lowest net damage effect, especially on a planet wide scale. (birdshot)

            I probably should do a youtube of this.
            TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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            • Ooohps

              Asteroid that could’ve obliterated NYC skimmed past Earth – and NASA didn’t notice

              A MASSIVE asteroid that could have destroyed New York City skimmed past Earth – and NASA had no clue.
              ...
              The large space rock – dubbed 2017 VL2 – passed the planet on November 9 at an astonishing distance of just 73,000 miles, which is considered tiny in space terms.
              Space boffins think that if the rock measuring between 16 and 32 metres had hit, it could’ve wiped a major city such as New York off the map.
              The rock belongs to the Apollo group of asteroids and was first seen at ATLAS-MLO observatory in Hawaii a day later.
              It was travelling at a speed of 8.73km/s and would have caused catastrophic damage if it had made impact.
              ...
              https://www.dailystar.co.uk/news/lat...-new-york-city
              TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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              • Presented more for the images it has than than the title, FYI~FWIW;
                Has an alien probe entered our solar system? Cigar-shaped interstellar 'comet' Oumuamua is being investigated for signs of extraterrestrial technology

                • Astronomers are set to scan an 'alien' comet for signs of extraterrestrial signals
                • The cigar-shaped object, named 'Oumuamua, sailed past Earth last month
                • The mysterious comet is the first interstellar object seen in the solar system
                • Now a team of alien-hunting scientists led by Russian billionaire Yuri Milner is scanning the object for radio signals

                By Harry Pettit For Mailonline
                Published: 12:20 EST, 11 December 2017 | Updated: 06:33 EST, 12 December 2017
                Last edited by G David Bock; 12 Dec 17, 18:06.
                TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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                • Originally posted by G David Bock View Post
                  Presented more for the images it has than than the title, FYI~FWIW;
                  Has an alien probe entered our solar system? Cigar-shaped interstellar 'comet' Oumuamua is being investigated for signs of extraterrestrial technology

                  • Astronomers are set to scan an 'alien' comet for signs of extraterrestrial signals
                  • The cigar-shaped object, named 'Oumuamua, sailed past Earth last month
                  • The mysterious comet is the first interstellar object seen in the solar system
                  • Now a team of alien-hunting scientists led by Russian billionaire Yuri Milner is scanning the object for radio signals

                  By Harry Pettit For Mailonline
                  Published: 12:20 EST, 11 December 2017 | Updated: 06:33 EST, 12 December 2017


                  ¯\_(ツ)_/¯
                  Watts Up With That? | The world's most viewed site on global warming and climate change.

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                  • Newly-discovered asteroid will give Earth a close shave today
                    Mike Wehner
                    BGR NewsDecember 28, 2017
                    EXCERPTS:
                    ...
                    When it comes to near-earth objects that might pose a threat, NASA is very much on top of things. That said, the sheer vastness of the sky means that some things will inevitably be missed, as is the case with the just-discovered asteroid named 2017 YZ4. The speedy space rock is hurtling in Earth’s general direction, and will slip by our planet today at a distance that is closer than that of the moon, which is a very close shave.

                    2017 VZ4 isn’t a particularly large object, only measuring between 23 and 49 feet, but its close approach is enough to give scientists plenty of reasons to keep an eye on it. Most objects that pass within such a distance are considered “potentially hazardous” based on their size and speed. This particular visitor will make its pass at around 10:56 am EST.
                    ...
                    “This is the first known asteroid to fly by Earth within one lunar distance since two such asteroids flew past us on November 21, and the 52nd this year,” a NASA representative explained to The Express. “As of December 24, there are 17,495 known Near-Earth Objects (NEOs) around our planet; 17,389 are asteroids.”

                    When it makes its closest approach to Earth, 2017 YZ4 will be traveling at a speed of around 21,000 miles per hour. That’s pretty speedy, but the object’s modest size means that even if it were to collide with us it wouldn’t exactly be a “planet killer.” Still, an asteroid strike of that size on a heavily populated would most certainly be devastating.
                    ...
                    https://finance.yahoo.com/news/newly...153159672.html
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                    Also:
                    Named 2017 YZ4, the asteroid was only spotted on Christmas Day, which means very little could have been done to protect Earth if it were to hit.

                    The asteroid passed between the Earth and moon at a distance of just 139,433 miles (224,000 km) - close enough to be considered a 'near miss' by astronomers.

                    The potentially hazardous asteroid, which is 22.6 to 49 feet in diameter (seven to 15 metres) skimmed past Earth at 4.56pm GMT (11.56 ET) this afternoon.
                    Just did, and now gone away ...
                    TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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                    • Giant 'Potentially Hazardous' Asteroid Will Whiz By Earth So Close We Can See Inside It
                      ...
                      On February 4, an asteroid called 2002 AJ129 is due to slip past Earth. It is between 1600 and 4000 feet across, according to NASA's Center for Near Earth Object Studies, but there's no chance it will make impact—NASA has calculated it will remain 2.6 million miles away.

                      That still makes it what astronomers call a "potentially hazardous asteroid," thanks to its size being more than about 500 feet across and an orbital path that carries it within about 4,650,000 miles of Earth.
                      ...
                      http://www.newsweek.com/giant-astero...-eye-it-784040
                      TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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                      • 'Mystery Wind' Wipes Out Patch of Washington Forest
                        EXCERPT:
                        ...
                        According to Mass the only weather event which may even be remotely related to the weird tree fall could be a frontal zone due to have hit the area later in the evening and even he is weary of that explanation.

                        The case has proven to be so perplexing that the fastidious researcher even joked that "perhaps the Sasquatch or alien visitation explanations should be taken seriously!"

                        With that in mind, it's probably only a matter of time before someone puts forward a meteor-related theory for the mini-Tunguska event.
                        ...
                        https://www.coasttocoastam.com/artic...ington-forest/
                        TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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                        • Originally posted by The Doctor View Post


                          ¯\_(ツ)_/¯
                          Isn't that the "Save the Whales" space ship from one of the Star Trek movies...

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                          • Originally posted by T. A. Gardner View Post
                            Isn't that the "Save the Whales" space ship from one of the Star Trek movies...
                            The latest analysis suggests that it is tumbling in a random manner which is said to indicate a major collision with something in its past so even in the extremely unlikely event that it's an artificial body it's a derilict
                            Human history becomes more and more a race between education and catastrophe (H G Wells)
                            Mit der Dummheit kaempfen Goetter selbst vergebens (Friedrich von Schiller)

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                            • Asteroid the size of a football field makes 'surprise' flyby close to Earth
                              ...
                              An asteroid the size of a football field buzzed by Earth Sunday in one of the closest encounters the planet has seen in a while.

                              At its closest point, the asteroid – called 2018 GE3 – was just 119,500 miles away from Earth's atmosphere, about half the distance between Earth and the moon, according to NASA's Center for Near Earth Object Studies (CNEOS). The estimated diameter of the space rock ranged from 131 to 328 feet, CNEOS reports.
                              ...
                              The 2018 GE3 asteroid was discovered just one day before it skimmed past Earth in what scientists are calling a "surprise" flyby.

                              "2018 GE3 was discovered by the Catalina Sky Survey approaching Earth on April 14th. Hours later, amateur astronomer Michael Jäger of Weißenkirchen Austria video-recorded the space rock gliding through the southern constellation Serpens," Spaceweather.com reported.
                              ...
                              http://www.foxnews.com/science/2018/...ast-earth.html

                              Though not large enough to cause E.L.E. (Extinction Level Event (Impact)), the size could do significant Regional damage were it to impact and barely time for a "heads-up", but little prep. Indicates such could also happen with no forewarning, just "out of the blue".
                              TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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                              • America Isn't Ready to Handle a Catastrophic Asteroid Impact, New Report Warns

                                https://gizmodo.com/america-isnt-rea...-im-1827014709
                                TANSTAAFL = There Ain't No Such Thing As A Free Lunch

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