Esate TOP puslapyje - kur atvaizduojami geriausi komentarų autoriai ir redakcijos pasirinkimai.
Skaitytojų pasirinkimas
na
2012-06-26 10:18
na pries rasant idijotiska klausima reiketu pasidometi tokiu elementu kaip plutonis.
Jis taip pat sintetinamas ir yra enegijos saltinis- kas bombas daro, kas naudoja nedidelio dyzio reaktoriuose eleltros energijos gamybai.
Ir kol elementas nesusinttintas, kol nezinomos jo savybes- neimanoma pasakyti kam ji galima panaudoti..
P.S. jei visi butu toki buki kaip tu- tada dar vis olose gyventume ir su akmeninemis kuokomis zveris dobtume...
Cituoti komentarą
vietniams abeliams
2012-06-26 12:29
WASHINGTON -- Five years of preparation, eight months collecting a few drops of precious radioactive material from a nuclear reactor in Tennessee, five trans-Atlantic flights, millions in research dollars and rubles, and six months of nearly 24-hour-a-day bombardment in a Russian particle accelerator had come to this: Element 117.
Six times in the last few months, it had flashed in a detector for a few fractions of a second and then disintegrated away, earning a permanent spot on the periodic table.
This new atom was discovered during a six-month long experiment that ended in late February, according to the team of scientists from Tennessee, California, Nevada, and Russia, who are reporting their discovery this week. Before August of last year, element 117 had never before existed on Earth -- and probably never before in the history of the universe, they say.
Though it has yet to be named, element 117 is the latest in a series of super-heavy atoms to be synthesized in the last few years at the Joint Institute for Nuclear Research in Dubna, Russia. For technical reasons, it was by far the most difficult to make, but its discovery promises to be an important stepping-stone to synthesizing even heavier elements. And it may open the door to better understanding of the mysteries of the atomic structure at the extreme end of the material world.
"[Element 117] is the exploration of new territory -- like the exploration of Africa by Livingston," said nuclear physicist Karl-Heinz Schmidt of the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany, who was not involved in the research.
Reached by telephone yesterday at his home near the institute where Element 117 was discovered, one of its discoverers spoke glowingly of the new element.
"This significantly expands the boundaries of the existence of the nuclei, atoms, elements," said nuclear physicist Yuri Oganessian. "In a word, the boundaries of the material world."
Cituoti komentarą
KAI ISTYRISIME
2012-06-26 12:18
FIZISKAI IR CHEMISKAI TADA BU KALBA IR APIE PANAUDOJIMA
O DABAR LIEKA PASIDZIAUGTI TIK SUSINTETINTU NAUJU ELEMENT
Rusų mokslininkai pakartotinai susintetino 117-ąjį cheminį elementą
na
Jis taip pat sintetinamas ir yra enegijos saltinis- kas bombas daro, kas naudoja nedidelio dyzio reaktoriuose eleltros energijos gamybai.
Ir kol elementas nesusinttintas, kol nezinomos jo savybes- neimanoma pasakyti kam ji galima panaudoti..
P.S. jei visi butu toki buki kaip tu- tada dar vis olose gyventume ir su akmeninemis kuokomis zveris dobtume...
vietniams abeliams
Six times in the last few months, it had flashed in a detector for a few fractions of a second and then disintegrated away, earning a permanent spot on the periodic table.
This new atom was discovered during a six-month long experiment that ended in late February, according to the team of scientists from Tennessee, California, Nevada, and Russia, who are reporting their discovery this week. Before August of last year, element 117 had never before existed on Earth -- and probably never before in the history of the universe, they say.
Though it has yet to be named, element 117 is the latest in a series of super-heavy atoms to be synthesized in the last few years at the Joint Institute for Nuclear Research in Dubna, Russia. For technical reasons, it was by far the most difficult to make, but its discovery promises to be an important stepping-stone to synthesizing even heavier elements. And it may open the door to better understanding of the mysteries of the atomic structure at the extreme end of the material world.
"[Element 117] is the exploration of new territory -- like the exploration of Africa by Livingston," said nuclear physicist Karl-Heinz Schmidt of the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany, who was not involved in the research.
Reached by telephone yesterday at his home near the institute where Element 117 was discovered, one of its discoverers spoke glowingly of the new element.
"This significantly expands the boundaries of the existence of the nuclei, atoms, elements," said nuclear physicist Yuri Oganessian. "In a word, the boundaries of the material world."
KAI ISTYRISIME
O DABAR LIEKA PASIDZIAUGTI TIK SUSINTETINTU NAUJU ELEMENT
to vietniams abeliams
bet vargu ar vietiniai abeliai turi pakankamus anglu kalbos igudzius, kad suprastu, kas jame parasyta.
?