If you have an iPhone battery swelling up and expanding, it's best to take the cell phone to your nearest Apple Store to get the battery replaced. The store may replace the battery for free since a bad battery can become a hazard (causing a phone to catch on fire or explode). Alternatively, an authorized Apple repair store could help fix the issue. For more on phone battery risk & safety information, check out Leo's recent episode of Ask the Tech Guy at https://youtu.be/LRfvgTFE9zk
Pulling out the power cord from an awake computer can put the machine at risk for hard drive failure. Interrupting a hard drive writing process could result in a mess of data all over the digital space. The ideal way to shut off a computer should always be the "Shut Down" option in the OS. If the computer is locked up, find a reset button or hold the power button for a few seconds before attempting to touch the power cord.
Richard is wondering if pulling the power cord on a computer (while it is on) hurts the machine. Leo says it is risky because if the computer/hard drive is in the middle of a writing process, pulling the plug could spew data all over the hard drive. Not to mention, physical damage could occur during the interruption as well. It is only okay to pull the cord when the computer is frozen solid and locked up. Unplugging is only a last resort, so always try to hold the power button first before attempting to cut off the power.
Rob is wondering if there's any danger in using his BlueAnt bluetooth device mounted on his visor. Leo says not at all. Worst case scenario is that it could fly off and hit him on the forehead. There's really no risk with radiation or any other frequency issues.
Johnny Jet joins Leo to talk about the SFO crash and how Twitter (hashtag #sfo) is always the best place for breaking news. Johnny says it reminds him of the miracle on the Hudson where Captain Sullenberger managed to land his plane on the Hudson and saved most everyone safely. The same is true here, and it's really an amazing miracle. Johnny also recommends going to fly.faa.gov to find out flight delay information if you're traveling to or from SFO today. Sign up for flight alerts from you airline on Twitter, as well.
Fred is concerned about the studies done that show alarming numbers of kids who text and drive. Leo says it's more than just texting though, there are a lot of things people do while driving that is equally as dangerous. In general, Leo believes we are more and more distracted in our lives and cell phones do contribute to it. The NTSB (National Transportation Safety Board) in December recommended a full ban on the use of cell phones while driving, not just texting but talking as well even if it's hands-free. The issue is that you can't pinpoint one source of distraction.