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It happens countless times on roads across America: a vehicle gets a flat tire, usually just a temporary inconvenience.But on one road near Redding, California, when a tire failed last month on a trailer and its rim scraped the asphalt, the result proved to be catastrophic for an entire region.The sparks that shot out July 23 from that minor incident, California fire officials said, ignited what is now the sixth-most destructive wildfire in state history.The Carr Fire blazed a fiery path along Highway 299, lighting up mile after mile of dry brush as it crept up on residential areas. 597

Investigators for special counsel Robert Mueller have recently been asking witnesses about Donald Trump's business activities in Russia prior to the 2016 presidential campaign as he considered a run for president, according to three people familiar with the matter.Questions to some witnesses during wide-ranging interviews included the timing of Trump's decision to seek the presidency, potentially compromising information the Russians may have had about him, and why efforts to brand a Trump Tower in Moscow fell through, two sources said.The lines of inquiry indicate Mueller's team is reaching beyond the campaign to explore how the Russians might have sought to influence Trump at a time when he was discussing deals in Moscow and contemplating a presidential run.Mueller was appointed to investigate Russian meddling in the 2016 campaign. The President claims that any investigation of his family's finances would be a breach of the special counsel's mandate.Two of the sources said they do not know from the questions asked whether Mueller has concrete evidence to indicate wrongdoing."You ask everything even if you don't think it's credible," one of the sources said, adding, "the allegations are out there, and it was checking the box."The special counsel's office, an attorney for the President and the Trump Organization all declined to comment for this story.Questions about Trump's entry into the campaign 1428

It's amazing how quickly technology can change. What seemed impossible just a few years ago is now reality. Robots are about to reach the next level, flexing their muscles like never before.It may not seem like much in this basement lab, but with a jolt of electricity, a team is creating the muscle of the future. "It's actually one of the closest analogs to natural muscle," says University of Colorado Boulder PhD student Shane Mitchell. "It almost performs like natural muscle."It's delicate enough to pick up a raspberry without bursting it, and an egg without breaking it. Yet strong enough to lift a gallon of water."We were inspired to create this artificial muscle from the world we live in," says Tim Morrissey, who manages the team at the Keplinger Research Group lab. The team develop HASEL, an artificial soft muscle that could enhance robot technology, making them better able to help people who need it."The robot needs to come into your home and work around you," Morrisey says. "And so if the robot is going to go up stairs it's going to need muscles to do that."HASEL muscle technology could also lead to advanced prosthetics.Morrisey says, "If you make a robot that has you know a skeleton frame with a soft bicep on it that moves up and down, you can do the same thing with a prosthetic."While other artificial muscles can be bulky, or unable to withstand electric pulses,  if there's an electric surge, HASEL can even repair itself. And with a rubber shell, electrodes and liquid inside, can you believe it costs only about 10 cents to make. "Originally we used canola oil actually just from the local grocery store," Mitchell says. It's an exciting innovation, but to this team, it's much more."We want to do something new in the scientific community," Mitchell says. "But it's really no help if it just stays in the lab. So we want to bring our technology to the community." Creating the next generation of robot technology, by adding a more natural touch. 2017

Instagram is continuing its efforts to combat bullying on the platform.On Tuesday, the company said it is starting to use new machine learning technology to proactively detect bullying in photos and captions. Those posts will be sent to Instagram's Community Operations team for human review."Online bullying is complex, and we know we have more work to do to further limit bullying and spread kindness on Instagram," Adam Mosseri, the new head of Instagram, said in a blog post.Mosseri was named Instagram's chief last week following the exit of co-founders Kevin Systrom and Mike Krieger. This is Mosseri's first announcement in his new role.An Instagram spokesperson said the technology can detect bullying and harassment such as attacks on a person's appearance or character and threats to someone's wellbeing or health.For example, the tech can identify bullying tactics such as comparing, ranking and rating images and captions, such as a split-screen image in which a person is compared to someone else in a negative way. It's unclear what else the technology can detect and whether it would work on images without captions.This feature has started to roll out and will continue to in the coming weeks.The company, owned by Facebook, is also launching a "Kindness Camera Effect" in partnership with dancer Maddie Ziegler. Anyone who follows Ziegler will have the camera effect automatically. In selfie mode, hearts will appear on the screen. In rear mode, kind comments in different languages will appear. You can tag friends, too.Earlier this year, Instagram announced it would filter out bullying comments that aim to harass or upset users. That feature built on a tool introduced last year that blocks offensive comments, and a filter that removes spam in comments. Starting Tuesday, the bullying comment filter will also apply to Live Videos on Instagram.Users can also turn off comments on individual Instagram posts and block posts with certain keywords. 1975

Is your computer running slow?Does it take longer to start up?It could be something minor, or it could mean hackers have gotten in and are recording your every keystroke.Data Doctors expert Ken Colburn says most of the time, you'd never know the difference.It can happen if you go to an unknown website. Or you could click on a link. Maybe it's a free download your child wanted. It could be something sent from a trusted friend who didn't know they'd been hacked.Make sure your computer protection software is up to date.If your computer is noticeably slower or you have other obvious signs, you may want to change passwords on a different computer.And you should consider taking your computer to an expert to be scrubbed.Click here for more ways to tell if your computer may have been hacked. 807