Satellite dishes are paraboloid in shape - that is, a parabola (a quadratic curve) rotated around its axis.
The shape has the property that rays entering it are reflected to its focus of the paraboloid. If the receiver is placed at that point, the signal is picked up from the broadcasting satellite over a wide field of view.
That means the same as solutions of other types of equations: a number that, when you replace the variable by that number, will make the equation true.Note that many trigonometric equations have infinitely many solutions. This is a result of the trigonometric functions being periodic.
Scientific fields that make use of trigonometry include: acoustics, architecture, astronomy , cartography, civil engineering, geophysics, crystallography, electrical engineering, electronics, land surveying and geodesy, many physical sciences, mechanical engineering, machining, medical imaging , number theory, oceanography, optics, pharmacology, probability theory, seismology, statistics, and visual perception. Various types of equations can be solved using trigonometry. For example, a linear difference equation or differential equation with constant coefficients has solutions expressed in terms of the eigenvalues of its characteristic equation; if some of the eigenvalues are complex, the complex terms can be replaced by trigonometric functions of real terms, showing that the dynamic variable exhibits oscillations. Similarly, cubic equations with three real solutions have an algebraic solution that is unhelpful in that it contains cube roots of complex numbers; again an alternative solution exists in terms of trigonometric functions of real terms.
You cannot make someone feel something they don't as well as make someone something they are not.
electronic goniometer
he discovered it in 196C
I do not know
quadratics are used for things like satellite dishes... there are more uses but that's only a basic one =) we are doing a project in math that requires quadratic equations. we make a parabola and put aluminum (or any other reflector) inside the parabola. we make a stick to put in the middle of the parabola to make a focus. we put the marshmellow on the focus and put the parabola in the sunlight. If done right then the marshmellow should heat up! cool huh?
They do not make very good antennas though.
It is better to have a local Dish retailer come and disassemble your Dish satellite. If you choose to do it yourself, first make sure all your Dish receivers power cords are unplugged and also the coax cables going into all your receivers.
You can make your satellite to pick up other signals by aligning the dish properly (elevation and azimuth alignment) taking into consideration the skew angle.
If I'm understanding your question correctly, it does matter what type of satellite dish you get to go with a particular satellite receiver such as a Dish Network receiver. Even the type of satellite receiver or programming selection can require a different type of Dish as all receivers pick up different satellites in orbit. Dish Networks new receivers, such as the Vip 722 and Vip 922 require a 1000.4 Dish. If you meant what company to go with, do your homework and shop around. Make sure you understand the promotional price that you will get initially, and then what your cost will be when the promotion ends. In my opinion, Dish Network has the best deals around.
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I've had great success and fun by turning a satellite dish into a super directional microphone. Any small mic will work, just position it at the focal point in place of the old microwave amp facing toward the dish. Add small headphone amplifier and listen up! Pinpoint birds and other wildlife locations.
It is not always better.Although quadratic equations always have solutions in the complex system, complex solutions might not always make any sense. In such circumstances, sticking to the real number system makes more sense that trying to evaluate an impossible solution in the complex field.
Parabolic mirrors are formed in a dish like shape, the purpose of it's shape is to transmit the electromagnet waves. For example when using a microwave or watching a television, it is through electromagnet radiation that make it possible to function. Television receives the signals via the satellite dish, the satellite dish acts as the parabolic mirror.
The best form of dish is a Parabolic Dish - This captures the digital signal and because of its concave form bounces the signal to an LNB ( stands for Low Noise Block) and it is the receiving end of a satellite dish. The LNB must be pointing directly to the satellite overhead in orbit to receive the strongest and clearest signal. As with a normal TV antenna, it may be required for you to adjust the LNB in order to receive the highest quality (strongest and clearest) satellite signals available
Satellite TV dishes are free if you qualify as a new or qualified former Dish customer. If you want to purchase one I would check online they usually run around 40-80 depending on what type satellite Dish you need. Make sure to get a LNB with your dish as this picks up the satellite TV signals.