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b) un documento de antecedentes titulado international work on industry classification: what are the priorities?
(b) background document entitled "international work on industry classification: what are the priorities? ".
existen informes nacionales detallados sobre noruega y suécia: sólo en inglés. financing continuing training: what are the les sons from international comparison?: +fr.
detailed national reports are available for norway and sweden: in english only.
== referencias ==== enlaces externos ==* "death of a rainbow warrior," july 10, 2005 (20th anniversary), greenpeace website.
==references====external links==* "death of a rainbow warrior," july 10, 2005 (20th anniversary), greenpeace website.
157. the collision of a pair of neutron stars, marked by ripples through the fabric of space-time and a flash brighter than a billion suns, has been witnessed for the first time in the most intensely observed astronomical event to date. the extraordinary sequence, in which the two ultra-dense stars spiralled inwards, violently collided and, in all likelihood, immediately collapsed into a black hole, was first picked up by the laser interferometer gravitational-wave observatory (ligo). albert einstein, the german-born theoretical physicist first predicted the existence of gravitational waves a century ago, but the first experimental proof that space itself can be stretched and squeezed took until 2015 when ligo scientists detected a collision of black holes. this time, as the stars collided, they emitted an intense beam of gamma rays and the sky was showered with heavy elements, resolving a decades-old debate about where gold and platinum come from. neutron stars are the smallest, densest stars known to exist: about 12 miles wide, with a teaspoon of neutron star material having a mass of about a billion tons. the core is a soup of pure neutrons, while the crust is smooth, solid and 10 billion times stronger than steel. ( theguardian.com ) a. the collision of a pair of neutron stars has attracted exceptional interest. b. the phenomenon of stars immediately collapsing into a black hole was observed by the laser interferometer gravitational-wave observatory. c. einstein predicted 100 years ago that this event would happen, but we did not know for sure until 2015 if it could happen. d. due to this event, we are now even closer to resolving where gold and platinum comes from.
157. the collision of a pair of neutron stars, marked by ripples through the fabric of space-time and a flash brighter than a billion suns, has been witnessed for the first time in the most intensely observed astronomical event to date. the extraordinary sequence, in which the two ultra-dense stars spiralled inwards, violently collided and, in all likelihood, immediately collapsed into a black hole, was first picked up by the laser interferometer gravitational-wave observatory (ligo). albert einstein, the german-born theoretical physicist first predicted the existence of gravitational waves a century ago, but the first experimental proof that space itself can be stretched and squeezed took until 2015 when ligo scientists detected a collision of black holes. this time, as the stars collided, they emitted an intense beam of gamma rays and the sky was showered with heavy elements, resolving a decades-old debate about where gold and platinum come from. neutron stars are the smallest, densest stars known to exist: about 12 miles wide, with a teaspoon of neutron star material having a mass of about a billion tons. the core is a soup of pure neutrons, while the crust is smooth, solid and 10 billion times stronger than steel. ( theguardian.com ) a. the collision of a pair of neutron stars has attracted exceptional interest. b. the phenomenon of stars immediately collapsing into a black hole was observed by the laser interferometer gravitational-wave observatory. c. einstein predicted 100 years ago that this event would happen, but we did not know for sure until 2015 if it could happen. d. due to this event, we are now even closer to resolving where gold and platinum comes from.
