Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Did Neutrinos Kill The Dinosaurs?
American Institute of Physics Bulletin of Physics News [PDF] ^ | January 11, 1996 | Phillip F. Schewe and Ben Stein

Posted on 03/25/2016 6:02:21 PM PDT by SunkenCiv

Massive collapsing stars radiate most of their binding energy (about 10^53 ergs) in the form of neutrinos. The rate of such collapses in our galaxy is expected to be greater, perhaps by a large factor, than the supernova rate. John Bahcall estimates a rate of about one collapse every 11 years in our galaxy. Stellar collapses might not exhibit the conspicuous optical show of full-blown supernovas but can still be potent emitters of neutrinos. According to Juan Collar, recently of the University of South Carolina but now with the University of Paris, stellar-collapse neutrinos may have played a role in biological extinctions on Earth in past eras, notwithstanding their very weak interactions with ordinary matter. Although stellar collapse parameters are poorly known, Collar has ventured to calculate the effect of a hypothetical low-dose, high- linear-energy-transfer (the energy dissipated by a radiation per unit length through a biological sample) neutrino flux on terrestrial animals; he suggests that collapse neutrinos may well cause a catastrophic level of cancerous malignancy, with ensuing large- scale loss of life, at a frequency (on the order of 100 million years) consistent with known major extinctions on Earth.

(Excerpt) Read more at physics.ncsu.edu ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism; dinosaurs; godsgravesglyphs; juancollar; neutrinos; paleontology; stellarcollapse
Navigation: use the links below to view more comments.
first 1-2021-4041-47 next last

In a word? No.


1 posted on 03/25/2016 6:02:21 PM PDT by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: 75thOVI; Abathar; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; ...

2 posted on 03/25/2016 6:03:17 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
[ Post Reply | Private Reply | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...

3 posted on 03/25/2016 6:03:21 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

4 posted on 03/25/2016 6:05:28 PM PDT by Snickering Hound
[ Post Reply | Private Reply | To 1 | View Replies]

To: Snickering Hound

Damn. You beat me to it.


5 posted on 03/25/2016 6:05:52 PM PDT by Pelham (A refusal to deport is defacto amnesty)
[ Post Reply | Private Reply | To 4 | View Replies]

‘Neutrino Bomb’ Idea Expands Debate on Human Extinction
by Malcolm W. Browne
Published: January 23, 1996
http://www.nytimes.com/1996/01/23/science/neutrino-bomb-idea-expands-debate-on-human-extinction.html?pagewanted=all


6 posted on 03/25/2016 6:10:12 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Couldn’t tread water for 40 days. Just say’n


7 posted on 03/25/2016 6:11:17 PM PDT by doc1019 (Cruz)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

Maybe gravity increased and dinosaurs could no longer survive


8 posted on 03/25/2016 6:13:20 PM PDT by captain_dave
[ Post Reply | Private Reply | To 1 | View Replies]

To: doc1019

Bush’s fault.


9 posted on 03/25/2016 6:13:26 PM PDT by Leo Carpathian (FReeeeepeesssssed)
[ Post Reply | Private Reply | To 7 | View Replies]

To: SunkenCiv

Oh, the neutrinos might have roughed up the dinosaurs a little bit, but kill them?

Naw.

Break a leg maybe.

Throw them down some stairs.

OK.

But they weren’t killers.

Now, black holes? Black holes is killers. They’ll off you just for lookin’ at ‘em wrong.


10 posted on 03/25/2016 6:15:13 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
[ Post Reply | Private Reply | To 1 | View Replies]

To: blueunicorn6

Racist...


11 posted on 03/25/2016 6:16:45 PM PDT by EEGator
[ Post Reply | Private Reply | To 10 | View Replies]

To: blueunicorn6

Don’t ever ever look into a black hole. If you do the dinosaurs they killed will rush out and eat you.


12 posted on 03/25/2016 6:18:02 PM PDT by LesbianThespianGymnasticMidget (God punishes Conservatives by making them argue with fools. Go Trump!)
[ Post Reply | Private Reply | To 10 | View Replies]

To: blueunicorn6

And you never see a black hole coming because they suck up all the light....


13 posted on 03/25/2016 6:18:36 PM PDT by GraceG (The election doesn't pick the next president, it is an audition for "American Emperor"...)
[ Post Reply | Private Reply | To 10 | View Replies]

To: SunkenCiv

Trump killed the dinosaurs, except for a Triceratops he gave to son Barron for his 10th birthday as a pet. Neutrino, Schmutrino... Nonsense.


14 posted on 03/25/2016 6:18:45 PM PDT by BigEdLB (Take it Easy, Chuck. I'm Not Taking it Back -- Donald Trump)
[ Post Reply | Private Reply | To 1 | View Replies]

Biological Effects of Stellar Collapse Neutrinos
J. I. Collar
Phys. Rev. Lett. 76, 999 – Published 5 February 1996

Abstract — Massive stars in their final stages of collapse radiate most of their binding energy in the form of MeV neutrinos. The recoil atoms that they produce in elastic scattering off nuclei in organic tissue create radiation damage which is highly effective in the production of irreparable DNA harm, leading to cellular mutation, neoplasia, and oncogenesis. Using a conventional model of the galaxy and of the collapse mechanism, the periodicity of nearby stellar collapses and the radiation dose are calculated. The possible contribution of this process to the paleontological record of mass extinctions is examined.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.76.999


15 posted on 03/25/2016 6:19:02 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
[ Post Reply | Private Reply | View Replies]

To: EEGator

Great.

Now I’ll get another time out.

Last time I got a time out was for writing f**k too much because I was mad that those Afghans had killed one of our Soldiers.

You can sure as hell bet I’ve cleaned up my language since then.


16 posted on 03/25/2016 6:28:47 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
[ Post Reply | Private Reply | To 11 | View Replies]

To: blueunicorn6

You’re thinking of modern neutrinos.

Way back when they had yer saber toothed neutrinos.

Now THEY were killers.


17 posted on 03/25/2016 6:30:27 PM PDT by papertyger (-/\/\/\-)
[ Post Reply | Private Reply | To 10 | View Replies]

To: LesbianThespianGymnasticMidget

My Grandma used to say that, too.

Right before they hauled her off to the nut house.

She was never eaten by a dinosaur, though.

She died captaining a pirate ship.


18 posted on 03/25/2016 6:31:32 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
[ Post Reply | Private Reply | To 12 | View Replies]

To: SunkenCiv
Neutrinos, they are very small,
They have no charge and have no mass
And do not interact at all.
The Earth is just a silly ball
To them, through which they simply pass
Like dust maids down a drafty hall
Or photons through a sheet of glass.
They snub the most exquisite gas,
Ignore the most substantial wall,
Cold-shoulder steel and sounding brass,
Insult the stallion in his stall,
And scorning barriers of class,
Infiltrate you and me! Like tall
And painless guillotines, they fall
Down through our heads into the grass.
At night, they enter at Nepal
And pierce the lover and his lass
From underneath the bed - you call
It wonderful; I call it crass.

John Updike

19 posted on 03/25/2016 6:31:42 PM PDT by sima_yi ( Reporting live from the far North)
[ Post Reply | Private Reply | To 1 | View Replies]

To: papertyger

I’ll bet you’re a fizzasist.....fizzacyst.....really smart person who studies stuff like this.


20 posted on 03/25/2016 6:34:11 PM PDT by blueunicorn6 ("A crack shot and a good dancer")
[ Post Reply | Private Reply | To 17 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-47 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson