half life

Definitions

  • WordNet 3.6
    • n half life the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
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Quotations

  • A. W. Hare
    A. W. Hare
    “Half the failures in life arise from pulling in one's horse as he is leaping.”
  • Napoleon Hill
    Napoleon%20Hill
    “It takes half your life before you discover life is a do-it-yourself project.”
  • Johann Wolfgang Von Goethe
    Johann%20Wolfgang%20Von%20Goethe
    “What life half gives a man, posterity gives entirely.”
  • John Irving
    John Irving
    “Half my life is an act of revision.”
  • Charles Haddon Spurgeon
    Charles%20Haddon%20Spurgeon
    “Economy is half the battle of life. It is not so hard to earn money as to spend it well.”
  • Clarence Darrow
    Clarence%20Darrow
    “The first half of our life is ruined by our parents and the second half by our children.”

Usage

In literature:

Half a ton of life emptied on the deck gave the biologists occupation for several days.
"The Home of the Blizzard" by Douglas Mawson
I had a half-breed whose life I had saved.
"Romany of the Snows Being A Continuation Of The Personal Histories Of "Pierre And His People" And The Last Existing Records Of Pretty Pierre" by Gilbert Parker
Beneath all his shrewdness and ability he was at heart a dreamer, a romanticist to whom life was an adventure in a half-real world.
"You Never Know Your Luck, Complete Being The Story Of A Matrimonial Deserter" by Gilbert Parker
The wounds were bound up, and all who had not expired, were carried, half-dead, and panting for life, to prison.
"The Lives Of The Twelve Caesars, Complete To Which Are Added, His Lives Of The Grammarians, Rhetoricians, And Poets" by C. Suetonius Tranquillus
My farm life as a boy was at least a half-holiday.
"Our Friend John Burroughs" by Clara Barrus
It was a slice of a human life on half a sheet of foolscap.
"In Midsummer Days and Other Tales" by August Strindberg
The Prince of Parma himself had never been so near death as at that moment, when half a minute saved his life.
"The Revolt of The Netherlands, Complete" by Friedrich Schiller
For a year and a half she made life miserable for all of us, then something happened and she turned out gloriously.
"Grace Harlowe's Second Year at Overton College" by Jessie Graham Flower
There were momentous episodes in the latter half of his career; but they were concerned with his life rather than with his art.
"Mark Twain" by Archibald Henderson
He promised half his kingdom and his daughter's hand to him who would restore her to life.
"Indian Fairy Tales"
In the last half-hour of his life we all gathered round Malachi's bed; he was only twenty-two.
"While the Billy Boils" by Henry Lawson
This was no half-awakened dreamer, but a man with the issues of his life at stake.
"The Yeoman Adventurer" by George W. Gough
You'll have to give up half your jointure for your life.
"The Eustace Diamonds" by Anthony Trollope
Half our life is consumed in longing to be nearer death.
"Ernest Maltravers, Complete" by Edward Bulwer-Lytton
Come, come hither, my half of life, my sunny half of life!
"The Parisians, Complete" by Edward Bulwer-Lytton
I have been living here six months, and my life has been passed in a park, two or three squares, and half a dozen streets!
"Lothair" by Benjamin Disraeli
A ghastly stare, through half-closed eyes, showed death in life, blankly returning her look.
"Heart and Science" by Wilkie Collins
Half my life for a tumbler of tea: I haven't had anything since morning.
"Plays by Chekhov, Second Series On the High Road, The Proposal, The Wedding, The Bear, A Tragedian In Spite of Himself, The Anniversary, The Three Sisters, The Cherry Orchard" by Anton Chekhov
Her courage seemed to grow with every half-hour of her life.
"The Cathedral" by Sir Hugh Walpole
Half a dozen lanterns were burning among the rocks, but there was no sign of movement or life.
"The Danger Trail" by James Oliver Curwood
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In poetry:

Four long years of mingled feeling,
Half in rest, and half in strife,
I have seen thy waters stealing,
Onward, like the stream of life.
"To The River Charles" by Henry Wadsworth Longfellow
'More than half my life long
Did they weigh me falsely, to my bitter wrong,
But they all have shrunk away into the silence
Like a lost song.
"The Obliterate Tomb" by Thomas Hardy
He, turning from the toil and strife
With half-ignoble thoughts of rest,
Sank when the sun of midmost life
Had scarcely turned to face the west.
"To My Friend" by Alexander Anderson
To stately Hall and Cottage rude
Flowed from his life what still they hold,
Light pleasures, every day, renewed;
And blessings half a century old.
"Address To The Scholars Of The Village School Of ---" by William Wordsworth
"Shall I not weep my heartstrings torn,
My flower of love that falls half blown,
My youth uncrowned, my life forlorn,
A thorny path to walk alone?"
"In Memory Of Charles Wentworth Upham, Jr." by Oliver Wendell Holmes
Heigh-ho, little man, if you meet the storms,
That blow o'er the hills of life,
With half the courage you show to-day,
You are sure to win in the strife.
"Who's Afraid" by Ella Fraser Weller

In news:

WASHINGTON (AP) — It sounds like a pretty good deal: Retire at age 38 after 20 years of work and get a monthly pension of half your salary for the rest of your life.
JIMMY ROLLINS has been in the Phillies organization for almost half of his life, but he remembers the early years, when manager Larry Bowa and coach John Vukovich cost him sleep.
Woman loses half her size and gains a new life.
Clearly, I spend a lot of my life on hold , as this short list represents only half the total I've recorded over the course of the last couple years.
Man gets life for 1957 slaying of Ill. A former Washington state policeman convicted of kidnapping and murdering an Illinois girl more than a half century ago was sentenced Monday to life in prison.
A former Washington state policeman convicted of kidnapping and murdering an Illinois girl more than a half century ago was sentenced Monday to life in prison.
A former Washington state policeman convicted of kidnapping and murdering a young Illinois girl more than a half century ago was sentenced today to life in prison.
A former Washington state policeman convicted of kidnapping and murdering a young Illinois girl more than a half century ago was sentenced Monday to life in prison.
In our Second Half of life, we have challenges.
Former Washington state policeman Jack McCullough was sentenced to life in prison on Monday for kidnapping and murdering 7-year-old Maria Ridulph more than a half century ago.
The second half of the larger-than-life sculpture will be delivered in the coming weeks.
A third of American households have no life insurance and half say they need more insurance.
All true macro lenses focus from infinity to half life size, and most focus all the way to full life size.
The half-life of a trendy neighborhood is now a matter of days.
Was he now In the middle Of his life With half of it Yet to come Like a visit Made on the run.
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In science:

Since the unstable isotope in the pair has a half life slightly longer than 1 Gyr, it does not reach saturation.
The Spiral Structure of the Milky Way, Cosmic Rays, and Ice Age Epochs on Earth
Surrounding the modules, a shielding of 15 cm of low activity lead reduces external γ and 3 cm of pure iron stops bremsstrahlung γ emitted in the lead by the decay of the 210Bi from long half-life 210Pb.
BiPo prototype for SuperNEMO radiopurity measurements
The delay between the two hits is also measured, and the fit of the decay law perfectly corresponds to the 212Po half-life (Fig. 5).
BiPo prototype for SuperNEMO radiopurity measurements
The 0ν ββ half-life and effective Majorana mass sensitivity of the MA JORANA Demonstrator module.
The Majorana Neutrinoless Double-Beta Decay Experiment
Barabash, “Average and recommended half-life values for two neutrino double beta decay: Upgrade (cid:48) 05,” Czech. J.
The Majorana Neutrinoless Double-Beta Decay Experiment
However, the theory cannot be checked in the triton since its half-life is used to remove some freedom in the weak interaction of a lepton with a nucleus, as will be explained explictly later.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
While the relativistic corrections are negligible for the half life, the MEC have a substantial influence on this β -decay rate.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
We will use the triton half-life as an experimental datum to determine this LEC, Sec. V A.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
III, we use the triton half-life as an experimental input to determine the LEC ˆdr .
6He beta-decay rate and the suppression of the axial constant in nuclear matter
The first error is due to the uncertainty in the triton half-life, whereas the second one is due to uncertainty in gA (the numerical error is negligible).
6He beta-decay rate and the suppression of the axial constant in nuclear matter
The first error is the cutoff variation dependence, the second is numerical, the third is due to uncertainties in the triton half-life, and the last is due to uncertainties in gA .
6He beta-decay rate and the suppression of the axial constant in nuclear matter
The coupling constant of this term gπN ∆ has been fixed by Schiavilla and Wiringa , so that the theory would reproduce the triton half-life.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
The weak interaction in the nucleus is completely determined by fixing the short range behavior of the scattering operator to reproduce the experimental 3H half-life, resulting in a parameter-free prediction of the 6He β -decay rate.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
He half-life is due to the use of the χPT formalism.
6He beta-decay rate and the suppression of the axial constant in nuclear matter
This isotope has half life of 13 years and is absent in natural isotope composition.
Proceedings of the 1st International Workshop "Radiopure Scintillators for EURECA" (RPScint'2008)
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