While every country had radar, Great Britain was the leader in using radar technology, especially for military purposes.
Blind speed in Moving Target Indication (MTI) radar refers to a specific velocity at which a moving target cannot be detected due to the radar's sampling rate and the Doppler frequency shift. When a target moves at this speed, its motion may produce a Doppler shift that coincides with the radar's pulse repetition frequency, causing the target to be effectively "invisible" to the radar system. This phenomenon can lead to gaps in surveillance and tracking capabilities, particularly in military and aviation applications.
Without radar, our ability to detect and track objects in the air and at sea would be severely compromised. Aviation safety would decline, as pilots would struggle to navigate and avoid collisions, particularly in low visibility conditions. Additionally, military operations would be hindered, as tracking enemy movements and missile defense systems rely heavily on radar technology. Overall, the absence of radar would lead to increased risks and inefficiencies in transportation, defense, and weather forecasting.
Microwave.
executives do not lead the military... civilians do. and civilians lead the military to prevent military coups. currently POTUS is Barrack Obama and SECDEF is Leon Panetta
Using a window fan for both exhaust and intake purposes in a room can help improve air circulation, reduce humidity, and lower indoor temperatures. This can lead to better air quality, increased comfort, and potential energy savings.
Yes, may people use lead bullets for a variety of purposes.
To detect "the presence of distant metallic objects". (Taken from the Wikipedia page on Radar). You can read more about its beginning in the history section of it. http://en.wikipedia.org/wiki/Radar#History
Lead is used in large amount. It is used for various purposes.
Using low caliber stool for seating purposes can pose risks such as instability, lack of proper support for the body, and potential for breakage or collapse. This can lead to discomfort, injuries, and accidents. It is important to use sturdy and appropriately designed seating to ensure safety and comfort.
Well it does things like lead to the stealth technology and to weapons that are geared to track back and destroy the radar installations. There are also techniques that have been developed to avoid radar like ground hugging flights and all the jamming devices. Then there are the E3 style planes that track an area and the skies that never existed before radar.
Range-Side Lobe Suppression (RS) is a technique used in radar systems to minimize the impact of side lobes in the antenna pattern, which can lead to decreased accuracy in range measurements. Inverse Synthetic Aperture Radar (ISAR) is a radar imaging technique that uses the motion of the radar platform to create a high-resolution image of a target. ISAR is often used for classifying and identifying targets, such as ships or aircraft, based on their radar cross-section signature.
Meteorologists use a combination of Doppler radar and eyewitness reports. Doppler radar can detect the rotation of a tornado or rotation that may soon lead to one. Newer advancements in radar can now detect debris lifted into the air from trees and buildings. People can also report when they see a tornado.