Physics Lover

pic credits: coolmaterial The first headphones were invented by American engineer Nathaniel Baldwin in 1910.  His invention was the end result of experimentation with the principle of sound amplification by compressed air. Baldwin patented and then sold his invention to the U.S. Navy. pc: pinterest The sensitivity of Baldwin's headset, tested by engineers of the Radio Division of the Navy, was twice that of others on the market at the time. His manufacturing output of the devices was limited, however, as he hand-built every headphone set the Navy ordered at his kitchen table. They were superior in quality to alternatives at the time, so the Navy accepted his limited output. Source: coolmaterial.com en.wikipedia.org en.wikipedia.org earlyradiohistory.us via: reference.com

pic credits: coolmaterial The first headphones were invented by American engineer Nathaniel Baldwin in 1910.  His invention was the end result of experimentation with the principle of sound amplification by compressed air. Baldwin patented and then sold his invention to the U.S. Navy. pc: pinterest The sensitivity of Baldwin's headset, tested by engineers of the Radio Division of the Navy, was twice that of others on the market at the time. His manufacturing output of the devices was limited, however, as he hand-built every headphone set the Navy ordered at his kitchen table. They were superior in quality to alternatives at the time, so the Navy accepted his limited output. Source: coolmaterial.com en.wikipedia.org en.wikipedia.org earlyradiohistory.us via: reference.com

Fire makes water. Fire is a tree running in reverse. Fire is not a thing at all By  Leeaundra Keany pc: pavelk / Shutterstock 1  Fire is an event, not a thing. Heating wood or other fuel releases volatile vapors that can rapidly combust with oxygen in the air; the resulting incandescent bloom of gas further heats the fuel, releasing more vapors and perpetuating the cycle. 2  Most of the fuels we use derive their energy from trapped solar rays. In photosynthesis, sunlight and heat make chemical energy (in the form of wood or fossil fuel);  fire uses chemical energy to produce light and heat . 3  So a bonfire is basically a tree running in reverse. 4  Assuming stable fuel, heat, and oxygen levels, a typical house fire will double in size every minute. 5  Earth is the only known planet where fire can burn. Everywhere else: Not enough oxygen. 6  Conversely, the more oxygen, the hotter the fire.  Air is 21 percent...

Fire makes water. Fire is a tree running in reverse. Fire is not a thing at all By  Leeaundra Keany pc: pavelk / Shutterstock 1  Fire is an event, not a thing. Heating wood or other fuel releases volatile vapors that can rapidly combust with oxygen in the air; the resulting incandescent bloom of gas further heats the fuel, releasing more vapors and perpetuating the cycle. 2  Most of the fuels we use derive their energy from trapped solar rays. In photosynthesis, sunlight and heat make chemical energy (in the form of wood or fossil fuel);  fire uses chemical energy to produce light and heat . 3  So a bonfire is basically a tree running in reverse. 4  Assuming stable fuel, heat, and oxygen levels, a typical house fire will double in size every minute. 5  Earth is the only known planet where fire can burn. Everywhere else: Not enough oxygen. 6  Conversely, the more oxygen, the hotter...

  Whats is GPS?  How does it work?   Pic credits:  shutter stock What is GPS? The Global Positioning System (GPS) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.[1] The system provides critical capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver. How does it work? A GPS Tracking Solution is the combination of a GPS tracker device, a monitoring software and server. GPS Tracker:  It is the tracking device which is installed in the vehicle and after installing it sends all the vehicle data to the software. Monitoring Software:  When a GPS tracker sends the vehicle data, it stores in the monitoring software. The software can be installed in admin’s system. B...

  Whats is GPS?  How does it work?   Pic credits:  shutter stock What is GPS? The Global Positioning System (GPS) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.[1] The system provides critical capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver. How does it work? A GPS Tracking Solution is the combination of a GPS tracker device, a monitoring software and server. GPS Tracker:  It is the tracking device which is installed in the vehicle and after installing it sends all the vehicle data to the software. Monitoring Software:  When a GPS tracker sends the vehicle data, it stores in the monitoring software. The software can be installe...

Whats echo? pic credits: dkfindout.com Generally everyone knows that its nothing but reflection of sound.Lets see whats it in detail but briefly.                                                                      Matter is made up of so many particles and atoms etc..so echo is due to vibration of sound in matter. This matter vibrates and brings back the sound to our ear. When you shout in a hollow room the sound travels away from the source(mouth) there by disturbing particles in the air and hits the wall and again reflects back. This is how sound echoes.Sound travel with 350m/s in the air. Even when the sound is vibrating away still you can hear the sound a distant away. Its nature’s gift for having all the gas particles, dusts, matter and atoms for vibrating. If not we can’t hear sound.

Whats echo? pic credits: dkfindout.com Generally everyone knows that its nothing but reflection of sound.Lets see whats it in detail but briefly.                                                                      Matter is made up of so many particles and atoms etc..so echo is due to vibration of sound in matter. This matter vibrates and brings back the sound to our ear. When you shout in a hollow room the sound travels away from the source(mouth) there by disturbing particles in the air and hits the wall and again reflects back. This is how sound echoes.Sound travel with 350m/s in the air. Even when the sound is vibrating away still you can hear the sound a distant away. Its nature’s gift for having all the gas particles, dusts, matter and atoms for vibrating. If not we can’t hear sou...

Heat pic credits:  publicdomainpictures.net Heat is the opposite of cold. In thermodynamics heat means energy which is moved between two things when one of them is hotter than the other. Adding heat to something increases its temperature, but heat is not the same as temperature.The temperature of an object is a measure of the average speed of the moving particles in it. The energy of the particles is called the internal energy When an object is heated, its internal energy can increase to make the object hotter. The first law of thermodynamics says that the increase in internal energy is equal to the heat added minus the work done on the surroundings. Thermal energy is the type of energy that a thing has because of its temperature. In thermodynamics, thermal energy is the internal energy present in a system in a state of thermodynamic equilibrium bec...

Heat pic credits:  publicdomainpictures.net Heat is the opposite of cold. In thermodynamics heat means energy which is moved between two things when one of them is hotter than the other. Adding heat to something increases its temperature, but heat is not the same as temperature.The temperature of an object is a measure of the average speed of the moving particles in it. The energy of the particles is called the internal energy When an object is heated, its internal energy can increase to make the object hotter. The first law of thermodynamics says that the increase in internal energy is equal to the heat added minus the work done on the surroundings. Thermal energy is the type of energy that a thing has because of its temperature. In thermodynamics, thermal energy is the internal energy present in a system in a state of thermodynamic...