a snapshot of time. in fact, you re holding the last mass extinction event to occur on earth. but there s even stronger evidence of a connection to the impact. tanis is 2,000 miles away from where the asteroid hit. but what links the two of these tiny beads scattered amongst the fossils. they re remnants of molten rock hurled high into the sky by the impact. they fell back down to earth across thousands of miles as these tiny glass balls. inside one may be something even more remarkable a small fragment of the asteroid itself. we were able to pull apart the chemistry and identify the composition of that material. all the evidence, all of the chemical data from that study, suggests strongly that we re looking at a piece of the impactor, the asteroid, that ended it for the dinosaurs. these discoveries could help us to understand the extinction of the largest beasts ever
and you can see i mean, this is really clear and obvious to see, isn t it? there s a definite line in the rock. absolutely clear. and above it, we ve got these very typical coals that we find, - associated with this post impact apocalyptic world, almost. - so, this you re holding a snapshot of time. - in fact, you re holding i the last mass extinction event to occur on earth. but there s even stronger evidence of a connection to the impact. tanis is 2,000 miles away from where the asteroid hit. but what links the two of these tiny beads scattered amongst the fossils. they re remnants of molten rock hurled high into the sky by the impact. they fell back down to earth across thousands of miles as these tiny glass balls. inside one may be something even more remarkable a small fragment of the asteroid itself. we were able to pull apart the chemistry and identify the composition of that material. all the evidence, all of the chemical data from that study,
by sir david attenborough, who reveals the dinosaurs last day, minute by minute. billions of tonnes of sulphur were ejected into the atmosphere, blocking the sunlight. a small piece of rock from the site is being studied at the university of manchester. this thin band of clay represents the moment when the dinosaurs became extinct. and you can see i mean, this is really clear and obvious to see, isn t it? absolutely clear. and above it we ve got these very typical coals that we find, associated with this post impact apocalyptic world, almost. so, this you re holding a snapshot of time. in fact, you re holding the last mass extinction event to occur on earth. but there s even stronger evidence of a connection to the impact. tanis is 2,000 miles away from where the asteroid hit. but what links the two of these tiny beads scattered
and obvious to see, isn t it? there s a definite line in the rock. absolutely clear. and above it we ve got these very typical coals that we find, associated with this post impact apocalyptic world, almost. so, this you re holding a snapshot of time. in fact, you re holding the last mass extinction event to occur on earth. but there s even stronger evidence of a connection to the impact. tanis is 2,000 miles away from where the asteroid hit. but what links the two of these tiny beads scattered amongst the fossils. they re remnants of molten rock hurled high into the sky by the impact. they fell back down to earth across thousands of miles as these tiny glass balls. inside one may be something even more remarkable a small fragment of the asteroid itself. we were able to pull apart the chemistry and identify the composition of that material. all the evidence, all of the chemical data from that study, suggests strongly that we re looking at a piece of the impactor, the asteroid, tha
cases, at least on paper. but at the end of this brutal week on wall street, a lot of analysts think the internet bubble is ready to burst and by this time next year a huge number of those dot coms might be dot gone. in the spring of 2000 the stock market starts to decline slowly, and then it s a mass extinction event in silicon valley. some investors are licking their wounds today after a number of internet stocks took a hit on wall street. as reports of layoffs at dotcom companies and doubts about their ability to generate profits spread. they ll tell you one thing, everything will be fine, we re just going through transitions. the next week we re downsizing. the next week we re closing. once we started seeing a sell-off even companies that survived, ebay, amazon, they all suffered. amazon.com ceo jeff bezos. his company s stock price tumbling from $113 a share to less than 16 today. it s not the kind of stock that you can own and sleep well if you re a small investor.