If you already have Windows 10 or expect to have the upgrade soon, you might find a dozen or so terrific tips (and a dud or two) useful. In Short Circuits: How to find out if your Android device is vulnerable to the Stagefright bug, using a checksum to verify a file's integrity, and Google now wants the entire alphabet. In Spare Parts (only on the website): The history of photography in 12 short videos, Sony tries to capture the world's runners, changes in the health-care industry lead to a high-tech scramble by pharmacies, and bringing technology to bear on fraudsters.