even in the cold quiet of winter, this woodland is revealing scientific secrets. we re doing a six hectare area, which is probably one of the largest study areas. researchers are weighing the trees here in wytham wood in oxfordshire, using a laser scanning technique that measures each tree in fine detail. you can see it sjust a bunch of points, but you can see how we capture the full 3d structure. each laser scanned point is a dot on a three dimensional map of a tree, and that s converted into a solid model. this is the measure of each tree s volume, which scientists can use to calculate the amount of carbon that s locked into every inch of trunk and branch. how much does that tree weigh? this one was about 25 tonnes overall, of which about half of that will be carbon. we have more than almost 1,000 trees that will be nondestructively weighed here with laser and we found significantly more carbon
suspect s torso. police say the victim will not be charged. georgetown university is requiring students to mask up during in person classes this fall. the school also mandating masks on its public transportation services; however, the mandate does not apply to informal gatherings like the library and other study areas. last year the state reinstated the mandate because of, a, quote, significant increase in covid-19 cases. the sec is launching an investigation into twitter s spam accounts. the move comes after an explosive whistleblower s claim that the company was misleading federal regulators about the number of fake accounts. elon musk, who is attempting to pull out of the $44 billion agreement to buy twitter because of those bot accounts sharing this cryptic tweet: give a whistle, give a little whistle. in a social media giant staff