Differences between revisions 9 and 10
Revision 9 as of 2019-09-07 23:17:55
Size: 4637
Comment:
Revision 10 as of 2019-09-07 23:33:44
Size: 5585
Comment:
Deletions are marked like this. Additions are marked like this.
Line 49: Line 49:
 . p121 1993 David Levy and Carolyn Shoemaker at Palomar find comet Shoemaker-Levy 9 comet, compute collisions on July 16 1994.
  . Fragment G, six million megatonnes, 10,000 km scar, This lead to Spaceguard.
  . p125 Paul Weissman author of "Big Fizzle is Coming" in '''Nature''', later noted that 'fizzle' is a Yiddish work meaning 'Great big humongous Jupiter-shaking comet explosion.'
 . p126 Astronomer Tom Gehrels was a teenaged WW2 Dutch resistance fighter and British commando.
 . p126 Spacewatch telescopes at Kitt Peak used first CCD cameras
 . p129 Congressional funding authorization 1997, find 90% of potentially catastrophic NEOs (800m) over the next decade
 . p130 later expanded to 90% of 150 meter objects by 2020
 . p131 Gene Shoemaker killed in July 18 1997 crash on dirt road near Alice Springs (Toyota Hilux Truck vs Toyota Land Cruiser)
  . ashes aboard 1998 Lunar Prospector moon probe
 . p137 NEOWISE
MORE LATER

Fire In The Sky

Bvtn 523.44 DIL . . 2019 . . Gordon L. Dillow (AZ Journalist)

https://gordondillow.com/


History, a few interviews, some reasonably current information

  • p1 meteor over Arizona 2016 June 2, light and sound, 500 tonnes TNT, not detected beforehand
  • p7 Meteor Crater impact, 50 Kya, 18 km/s, 50 meter diameter, nickle-iron
    • p12 nothing lives inside 5 km, 800 km2 stripped bare, 1200 m crater, 170 m deep
    • p18 300,000 visitors per year
  • p31 4 kg meteorite 1954 Sylacauga Alabama hits 34 yo Anne Hodeges, in Tuscaloosa Museum of Natural History
    • p32 many other "unconfirmed" cases and deaths
  • p34 Piazzi 1801 Ceres Himmelpolizei . . 1802 Pallas . . 1807 Juno Vesta
  • p36 NASA $850M probe to Psyche Launch 2022 Arrive 2026

  • p39 1997 XF11 close pass 2028 . . . 5km 4179 Toutatis next close approach 2029
  • p40 city-killer-sized twice per century (somewhere)
  • p43 400 discovered by 1900
  • p40 Lawyer Daniel M. Barringer, Princeton 1879, mining, 1896 Commonwealth Gold/Silver Mine in sw Arizona
  • p50 Dr. Albert E. Foote, collectable minerals, gathered >100 meteorites, one 200-pounder; then Volz collected 20,000 pounds, $1.25/pound

  • p53 1891 prominent scientst Grove Karl (G.K.) Gilbert claimed steam explosion
  • p56 Western Union Telegraphic Codebook 1903
  • p57 Barringer assumes million tonne metal asteroid, claims mining patent, plans to dig out iron 200 feet deep, starts digging 1904, drills down to 1000 feet
  • p65 1929 astronomer Forest Ray Moulton calculates asteroid destroyed by impact, Barringer dies of heart attack age 69
  • p66 UAZ John L. Lewis, Mining the Sky, 2014 Asteroid Mining 101, chief scientist for Deep Space Industries
    • Platinum Group Metals not worth it except as byproduct of space construction material harvest
  • p71 Spurring Private Aerospace Competitiveness and Entrepreneurship (SPACE) act of 2015 exempts American citicesns from 1967 Outer Space Treaty
  • p74 1971, IAU 15 km Barringer Crater on the far side of Moon
  • p75 Tunguska June 30, 1908, 1927 Kulik expedition
  • p87 Cosmic pluralism, In 1838 Scottish author/minister Thomas Dick claims 21,891,974,404,480 living inhabitants in Solar System, 5 billion on moon

    • based on surface area and population density of England
  • p87 1870 William Herschel (discoverer of Uranus) claims fornicating man-bats on Moon
  • p89 1946 Robert S. Dietz argues almost all lunar craters meteoric

  • p90 Gene Shoemaker 1928, Caltech geology masters at age 21, 1950 USGS search for uranium, saw Meteor Crater with wife Caroline

    • p93 1960 Shoemater finds quartz allotrope "coesite" in Meteor crater and in 15 mile wide circular depression around Nördlingen Germany

  • p93 200 confirmed impact craters, 300km 2Gya Vredefort the largest

  • p95 Shoemaker 1963 Addison's disease, no astronaut, but helped train Apollo astronauts
  • p96 in 1956 Clair Patterson dated Meteor Crater meteorites with lead isotopes

  • p99 Shoemaker and Glo Helin started the Palomar Planet-Crossing Asteroid Survey in 1973

    • moon craters extrapolate to two thousand NEOs bigger than 800 meters
  • p100 NEO Asteroid 5496 discovered by Helin in 1973
  • p102 15kT airburst somewhere about once per year
  • p102 airburst over Mediterranian, in 2002 General Pete Worden spoke of consequences of that occuring over India/Pakistan instead
  • p106 Alvarez (geologist Walter and Nobel physicist Luis) thin red clay layer outside Gubbio Italy linked to K-T extinction,
  • p116 Wolfgang Pauli's cabaret-dancer wife left him "Had she taken a bullfighter I would have understood. But a chemist?"

  • p118 1978 Glenn Penfield finds large circular structure buried underground and underwater in old magnetig and gravity surveys
    • presents paper with Antonio Camargo, but a 1988 paper with Alan Hildebrand and David Kring made the case.

  • p121 1993 David Levy and Carolyn Shoemaker at Palomar find comet Shoemaker-Levy 9 comet, compute collisions on July 16 1994.
    • Fragment G, six million megatonnes, 10,000 km scar, This lead to Spaceguard.
    • p125 Paul Weissman author of "Big Fizzle is Coming" in Nature, later noted that 'fizzle' is a Yiddish work meaning 'Great big humongous Jupiter-shaking comet explosion.'

  • p126 Astronomer Tom Gehrels was a teenaged WW2 Dutch resistance fighter and British commando.
  • p126 Spacewatch telescopes at Kitt Peak used first CCD cameras
  • p129 Congressional funding authorization 1997, find 90% of potentially catastrophic NEOs (800m) over the next decade
  • p130 later expanded to 90% of 150 meter objects by 2020
  • p131 Gene Shoemaker killed in July 18 1997 crash on dirt road near Alice Springs (Toyota Hilux Truck vs Toyota Land Cruiser)
    • ashes aboard 1998 Lunar Prospector moon probe
  • p137 NEOWISE

MORE LATER

FireInTheSky (last edited 2019-09-08 18:08:46 by KeithLofstrom)