A pontoon bridge, also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load they can carry. Most pontoon bridges are temporary, used in wartime and civil emergencies. Floating bridges are made of large water-tight concrete pontoons connected rigidly end-to-end, upon… Read more →
When a spacecraft is launched into orbit, it should end up spinning around the Earth quickly enough not to be pulled back in by the Earth’s gravity. The huge rockets used in launching a spaceship help this to happen by giving a huge amount of thrust, enough to achieve escape velocity. However, the spin of the Earth itself can help… Read more →
Geofencing is a location-based service in which a creator of an app or other platform/software uses GPS, RFID, Wi-Fi or cellular data to send/trigger messages like SMS, Email or In-App/App-based notifications (pre-programmed action) when mobile devices that enter, exit, or remain parked in the geographical location. You can select and mark off a geographical area from a map and set… Read more →
Net neutrality is the idea that Internet Service Providers (ISPs) should treat all content and users on the internet equally and fairly. It is to avoid discrimination against certain types of content and keep the internet “open” by preventing ISPs from imposing certain restrictions on usage. In other words, net neutrality encourages all types of legal internet traffic – data… Read more →
High-G training is done by aviators and astronauts who are subject to high levels of acceleration (‘G’). It is designed to prevent a g-induced loss of consciousness (G-LOC), a situation when the action of g-forces moves the blood away from the brain to the extent that consciousness is lost. Incidents of acceleration-induced loss of consciousness have caused fatal accidents in… Read more →
Researchers and scientists are interested in developing devices that can sniff the chemicals and navigate in the air to locate disaster survivors such as gas leaks, explosions, etc. But most man-made sensors are not sensitive or fast enough to locate or process-specific smells. In this direction, scientists have developed Smellicopter. It is an autonomous drone that uses a live antenna… Read more →
Bio-electrical Impedance Analysis or Bioimpedance Analysis (BIA) is a method of assessing your body composition: the measurement of body fat in relation to lean body mass. It is an integral part of a health and nutrition assessment. BIA allows for early detection of an improper balance in your body composition, which fosters earlier intervention and prevention. BIA also provides a… Read more →
As a fighter pilot, one of the most common questions they get is: How do you go to the bathroom in an F-16 or F-35? Let me start off by describing the cockpit. Now, typically in training, flights are less than an hour and a half. As long as you don’t drink too much coffee before a flight, it’s generally… Read more →
Simply put, a torpedo is a self-propelled underwater missile that carries an explosive warhead to a target. Early torpedoes damaged their target by exploding as soon as they made contact. These torpedoes were called contact torpedoes. Newer torpedoes can detonate once in close proximity to a target. These proximity torpedoes do not even have to touch the ship to inflict… Read more →
The air we breathe is made up of significant quantities of four gases. When we breathe in the air, our bodies consume their oxygen and convert it to carbon dioxide. Exhaled air contains about 4.5-percent carbon dioxide. Our bodies do not do anything with nitrogen or argon. A Submarine is a sealed container that contains people and a limited supply… Read more →
