To say there have been many advancements in the field of microscopy since the development of the first compound microscope by Zaccharias Jansen in the late 16th century is an understatement. Jansen and his father, Dutch spectacle makers, built the first microscope by using three draw tubes with lenses inserted into the ends of the flanking tubes. They discovered a much larger image than expected; much larger than simple magnifying glass provided. The very first compound microscopes only magnified images between 6x – 9x. Microscopes of today can magnify images to the nanometer.
Image this scenario: You’re hiking through the primeval forest with your favorite hiking companion – your dog. You two have enjoyed many similar excursions through all kinds of terrain without incident, but today, neither of you are so lucky. A freak rockslide leaves the animal severely cut and bleeding profusely. You know the blood flow is dangerously fast and must be stopped before your canine friend bleeds out. You have to do something quickly.
Medulloblastoma. Anaplastic astrocytoma. Mixed glioma. Brain tumor. Regardless of the name, the diagnosis is terrifying to receive and a surgical challenge to treat.
The room is quiet and the only sound is that of pencils scratching answers on papers as everyone focuses on the exam. Then the silence is broken by the unmistakable sound of someone cracking their knuckles. Scientists now know why knuckles make that distinct popping sound when cracked. Continue reading “MRI Scan Reveals Why Knuckles Crack” »