Both! Ultrasound Tech, or Technician, is the same as Sonographer. You may also hear the term Diagnostic Medical Sonographer as well as Ultrasonographer.Each of these titles refers to the profession of operating ultrasound machines, which produce images used to diagnose and treat patients.oth! Ultrasound Tech, or Technician, is the same as Sonographer. You may also hear the term Diagnostic Medical Sonographer as well as Ultrasonographer.
Flip-flop hub. Flip-flop hubs, also called double-sided hubs, are rear bicycle hubs that are threaded to accept fixed cogs and/or freewheels on both sides. There are several different types of flip flop hubs available for different applications. Their main purpose is to allow changing between two different size gear ratios on one rear wheel without the added complications of a derailleur or internal hub gear, or between a fixed and freewheeling option.
For other uses, see Flip-flop. A pair of flip-flops being worn. Flip-flops (also called thongs, jandals, pluggers, go-aheads, slaps, slides, step-ins) are a type of open-toed sandal typically worn in casual situations.They consist of a flat sole held loosely on the foot by a Y-shaped strap that passes between the first and second toes and around either side of the foot.ost modern flip-flops are inexpensive, costing as little as $ 5, or less in some parts of the world. They are made from a wide variety of materials, as were the ancient thong sandals. The modern sandals are made of more modern materials, such as rubber, foam, plastic, leather, suede, and even fabric.