Ultracapcitors are double layered capacitors which have a greater advantage of long life, low cost per cycle, good reversibility, high charge and discharge rate, high output power, improved safety, no corrosive electrolyte and low toxicity of materials etc. Ultracapacitor can be charged in a second. Imagine charging your laptop battery in 1 second and using … Continue reading
Aerosol inhaler for asthma is a pressurized aerosol which when used will eject the medicine as aerosol into the lungs. The content inside asthma aerosol inhalers is propellant and the medicine. Typically the propellant is almost 99% of the content. CFC propellants are replaced by HFA (hydrofluoroalkane) propellants as CFC is an ozone depleting substance. … Continue reading
Magnetic resonance imaging (MRI) scanner is one of the best inventions in medical history. Using powerful magnetic field the scanner makes it possible to get 2D or 3D images of human body for medical examination. CT scans and X-rays uses ionizing radiation but MRI scanner use harmless magnet fields. Though harmless MRI scanner does have … Continue reading