research is so promising, john mayer adopted it today. he's given time, and notice, and money almost reluctant to be interviewed. >> i think if you have' voice it's a duty to have the knowledge sou don't derail whatever sit you're talking about. >> now, back to the experiment. no drugs just effort hoping to sweat away what might have seemed intangible. >> i thought it's a mess. and i realized it's the real thing. >> from presidio wayne freedman abc 7 news. >> let's head outside now. >> jand patel is here with the weekend forecast. >> tonight the fire danger going up in north bay hills. we have more trordz pass along. looking towards san francisco, sutro tower, sunny skies there. here are the records. napa, 92. san francisco, p 79. oakland 86. mountain view, 88, new records. so another day of record heat. we do vai red flag warning until 3:00 p.m. tomorrow. so watch out, high fire danger to that area. you can see a lovely view there. ground level solution running high so santa clara valley poor air quality. rest of the bay area, modry. you

. >> katie: john mayer showed up for the common station. he has adopted ptsd as a cause and been donating his time and money. >>> researchers at ibm in san jose has created the world's smallest movie. a product of moving individual atoms to tell a story. >>> at first glance, this early attempt at animation. the sticks and what appears to be a ball are made of single atoms being manipulated on an ordinary desktop computer. >> it takes days or months to set up and move individual atoms but once set up, it's easy. >> a click of the mouse drag the atom to a new spot. >> scientists have been studying how the small number of atoms behave. it used to take million atoms to store data. now, they have discovered it could be just eight. >> they had to magnify it hundred million times. this orange on the same scale would be the equivalent of the entire planet earth. >> moving an acontaminate plows an interesting noise. it's kind of like a dj scratching music tracks. they speculate behind this may lead to tiny storage devices. >> it could be devices con

it's time for a respected broadcast journalist to speak the lyrics to john mayer's 2002 hit, "your body two. one thing i've left to do, discover me discovering you. one mile to every inch. your skin like porcelain. one pair of candy lips. and your bubble gum tongue. your body is a wonderland. [ cheers and applause ] >> jimmy: thank you, matt lauer! now, this is one of the closest matches in the long and storied history of wheel of carpet samples. higgins, who is tonight's winner? >> steve: tonight's winner on wheel of carpet samples is contestant number two! >> jimmy: oh, wow! ♪ [ cheers and applause ] congratulations, buddy! higgins, what did he win? >> steve: well, jimmy, he won a carpet sample. this sample of carpet is 14 inches long, five inches wide, and is a carpet sample. jimmy? >> jimmy: amazing, amazing. guys, unfortunately, you did not win tonight. >> all right. >> jimmy: i'm going to need those carpet samples back. so sorry, but here on wheel of carpet samples, no one goes home empty-handed. higgins, tell him about tonight's consolation prize. >> steve: tonight's consolation

. >> singer songwriter john mayer showed up for the demonstration. he has adopted ptsd as a cause, donating his time and money. >>> researchers at ibm in san jose have created the world's smallest movie. a product of moving individual atoms to tell a story. business and technology reporter david louie gives us an inside look. >> at first glance it looks like an early attempt at animation but you are looking at something truly revolutionary. the sticks and what appears to be a ball but is actually an at atom are made of single atoms being manipulated on an ordinary desktop computer. >> it takes days or months to set up to move individual atoms but once we have it set up, it's easy, it takes just a few seconds. the click of a mouse, drag the atom to a new spot and let it go. >> scientists at nabm research >> scientists at ibm research in san jose valley have been studying how the small at comes behave. it used to be the number of atoms could be as small as twelve and manipulating more atoms could open more doors. they took a single at tom and magnified

. >> singer songwriter john mayer showed up for the demonstration. he has adopted ptsd as a cause, donating his time and money. >>> researchers at ibm in san jose have created the world's smallest movie. a product of moving individual atoms to tell a story. business and technology reporter david louie gives us an inside look. >> at first glance it looks like an early attempt at animation but you are looking at something truly revolutionary. the sticks and what appears to be a ball but is actually an at tom are made of single atoms being manipulated on an ordinary desktop computer. >> it takes days or months to set up to move individual atoms but once we have it set up, it's easy, it takes autofew seconds. the click of a mouse, drag the at tom to a new spot and let it go. >> scientists at abm research in san jose valley have been studying how the small at comes behave. it used to be the number of atoms could be as small as twelve and manipulating more atoms could open more doors. they took a single at tom and magnified it 100 million times to manipula

is it john mayer, joe jonas, taylor lautner or jake gyllenhaal?ith jake gyllenhaal? people sort of speculate. they imagine. they think they get clues. >> they kind of draw their own stories. >> reporter: you're wearing a scarf in a music video, and everyone's like, gee, that scarf looks like the scarf she was wearing when she was photographed with jake gyllenhaal, perhaps -- >> you know -- >> reporter: it's funny right? >> for me, the one thing that i keep really close is the identity of who these people, who these songs are really about. >> reporter: is it sometimes hard to get people to come into your world? because i don't know, if i hung out with you i'd be a little afraid you were going to write a song about me. >> the only time it's been an issue was when i was, like, going through a really bad breakup with a guy, and he's like, "you better not write about this." and i'm like, "oh, i won't." >> reporter: did you? >> yes. >> reporter: do you ever hear from these people who maybe recognize themselves in a song, and are like, "hi, guess what, i

, along with the money they could bring but haven't yet may be what yahoo's ceo marissa mayer is really after. john ford has more now on yahoo's big bet on tumblr. >> reporter: david karp is 26, a high school dropout, and now he's mega-rich. that's because karp is founder of tumblr, the blogging site yahoo just bought for $1.1 billion in cash. >> this isn't a get rich quick scenario. karp has been working on tumblr for years. >> reporter: since she arrived 10 months ago, yahoo's ceo marissa mayer has been triegd transform the company into a must use service for everyone. to succeed, she's going to have to figure out what younger users are doing with their smartphones and tablets and what they'll want to do next. tumblr with its massive audience of more than 300 million visitors every year will certainly help. 11 months ago it topped the list of websites at 47. since then it's climbed to 41. but is yahoo paying too much? >> youtube looked expensive in 2005. this year they're going to do $1 billion in revenues. a lot of people screamed that deal didn't work out for a long time. i think tumblr is a sp

mayer took over yahoo stock has soared. tonight as we continue our week-long series on comeback companies, john takes a look at yahoo!'s turn around and mayer's role in that revival. >> yahoo!, it's one of the defining companies of the inteet era, but a year ago it had nearly fallen apart. it chewed up four ceos in as many years, cert share was dropping, parking lots took too long to fill in the morning, a sign of flagging morale. then new ceo marissa mayer came on board. >> what a difference ten months makes. new ceo, new game plan and suddenly yahoo! is a place people want to come take a look at the home page that's been redesigned with the hope that users will spend more time there. >> people said give me a reason to come backto yahoo! a few times a day. now the content is always updating. >>> iphone apps like weather have gotten a face lift. that app got more downloads in five days than her team had expected for the entire quarter. a main goal for these changes, make yahoo! cool again. that will be a long slog. even users in silicon valley know that. >> some people are more tech savvy that i don't have gmail or so

. >> john: today's thing of the day is not safe work of the day. marissa mayer who just purchased tumblr for a $1.1 gallon price tag has reassured everyone she will not be restricting pornography on the site. now, some people were surprised to hear there is pornography on tubmblr. some people were surprised to hear there was stuff besides pornography. speak of media it is tough for them to run unbias. think of how hard it is when they involve them themselves. the press was subpoenaed after a classified leak about a foiled al-qaeda plot in yemen. records were seized for five reporters and subpoenas covered more than a dozen other phone lines including one that shut down six years ago according to nbc news. pruitt said sources are reluctant to talk now and really who can blame them. the justice department investigated james rose of fox news after a classified leak about north korea. i love defending james rosen but the press isn't always the wounded party. which brings us to the benghazi talking points. g.o.p. sources leaked e-mails making it seem like the state d

john, this week we have been talking about the job that marissa mayer is doing at yahoo!e thought on a strategist who said he wasn't impressed, what she's doing, she's going for attention, is not going to help the company, but i think you disagree? >> i he completely disagree. that's what they said about the deal with google and youtube. and they said the same thing about youtube as they say about t tumblr. that it's a small niche market, no way to monetize that market. and that they had a small percentage of porn on youtube at the time. they've kept. the founder of youtube and tumblr. marissa mayer was there when they bought youtube. microsoft is a wonderful company and they have not been able to develop anything other than xbox, other than incredible word that they have. they have just been returning this money to shareholders. to me, that's a waste of money and shows that you're a very uncreative and there's nothing else you can do. i think that marissa mayer is an absolute rock star. charles: i tend to agree. she's invigorated the spirit of the company. this or maybe