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Explain, answer the first question. the second question, i guess i would have to leave to others. so to briefly walk you through where this calculation comes from, it's -- based on a measurement technique of fluid measurement technique, particle image velocity symmetry. scientific word for measuring flows using, look at how fast particles move. >> you basically look at this for two hours, i understood. measured the speed at which and rapidity at which particles were moving through this video. because is was solid, you couldn't see all the way through you are giving yourself a 20% margin of err...

>> well, i can, i can certainly explain, answer the first question. the second question, i guess i would have to leave to others. so to briefly walk you through where this calculation comes from, it's -- based on a measurement technique of fluid measurement technique, particle image velocity symmetry. which is just a scientific word for measuring flows using, look at how fast particles move. >> you basically look at this for two hours, i understood. measured the speed at which and rapidity at which particles were moving through this video. but because it was solid and you couldn't see all the ...

And initial prototype was built in collaboration with partners in several european countries along with israel and chile. for now tobias' beringer and his colleagues are practicing with it in a laboratory setting the. robot as its grip are on in front and its vision system above it recognizes the peppers where they meant to be located in the vision system plans the way the robot is supposed to approach the pettus and then pick them up and attitude on. but can the robot actually compete with human workers behringer says it can at least under ideal conditions. the conditions in the lab are optim...

Has occurred at the same time more americans report getting less sleep. now a study in the journal "sleep" may have found a connection. researchers put 225 people in a laboratory setting. some of them were allowed to sleep ten hours a day. while the others were allowed only four hours sleep. after 18 days, the sleep-deprived group gained about 2 pound more than the group that slept well. the weight gain came because the the sleep deprived ate 500 extra calories a day during the extra time they stayed awake at night. in other word, insomniacs have more time for snacking. and those midnight snac...

Margin of error? >> that's right. when this technique is done correctly, in a laboratory setting, the window of error is very small. say, plus, minus 1%. really hard, good engineering number. and because of the -- because of the various variables here, i'm not able to get, i'm not confident beyond plus or minus 20%. >> so the estimate of 5,000 gallons. a day you, have no doubt that is way, way low. >> right. >> you are saying it could be as high as 70,000? >> well, i calculate from the video, which is just a snapshot in time, right, the video just shows what was happening i think it was shot t...