You didn't wake up this morning thinking that a tick under a scanning electron microscope was going to be the coolest thing you saw all day, and yet here you are. After discovering some ticks alive inside a vacuum drying chamber, Yasuhito Ishigaki of Kanazawa Medical University decided to see if the hardy little bloodsuckers could stand up to the electron bombardment and vacuum conditions inside a scanning electron microscope (SEM). They could, and he's got the video to prove it.
Lives often hang on Palenik's precise identification of a fiber or fleck of metal. In his workday, there's no room for error.
By Gordon GricePosted 09.27.2002 at 7:13 pm 0 Comments
THE CASE OF THE WELDER'S DUST
The Evidence: In 1991, an 11-year-old girl was raped and murdered near Glennallen, Alaska. On her freshly laundered clothes investigators found flakes of glossy paint, tiny metal spheres and flakes, and red and blue polypropylene fibers. Charles Smithart, a local resident, had been spotted near the murder site, and the unusual interest he took in the case aroused suspicions, but investigators lacked evidence that directly linked him to the crime.