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Calculadora de Matematicas Perform mathematics calculations online : arrays, matrix, integrals, trigonometry functions, linear equations, differential equations, financial functions, polynomials, function solver, math equation solver, variables, products, inequalities, approximations, root-finding for algebraic functions, integrate functions numerically, find local extrema, analysis of a function and more. It can solve various mathematical problems in areas of calculus, algebra, discrete mathematics, numerical algorithms, applied mathematics and engineering mathematics. Use of variables, definitions, pi, exponential functions, products, symbols, sets, logic is allowed and possible. Statistical and finance functions are possible. Read tutorial to learn how to use. Powered by Octave.
Throttle A throttle is the mechanism by which the flow of a fluid is managed by constriction or obstruction. An engine's power can be increased or decreased by the restriction of inlet gases (i.e., by the use of a throttle), but usually decreased. The term throttle has come to refer, informally and incorrectly, to any mechanism by which the power or speed of an engine is regulated. What is often termed a throttle (in an aviation context) is more correctly called a thrust lever. For a steam engine, the steam valve that sets the engine speed/power is often known as a regulator. Internal combustion engines[edit]
CNC Panel Joinery Notebook I’ve been collecting clever ways of slotting flat stock together since I first read Nomadic Furniture back in 1999, well before the advent of the accessible hobby-class CNC tools that today make manufacturing parts like these pretty easy. Now, the world is full of people designing models, project enclosures, sculpture, furniture, and all kinds of other cool stuff to be assembled from parts made on laser cutters and CNC routers. I keep expecting a definitive book or website to emerge that covers the “bag of tricks” in an organized way, but so far, I haven’t found it. Maybe this article can serve as a jumping-off point.
14 Concept Appliances That Need To Be Made Concept appliances give us a peek into the future. They are often aesthetically pleasing and offer interesting and unique features; however, it is a rare concept appliance that makes it off of the drawing board and into the showroom. Unrealistic designs, high production costs and lack of consumer demand are often the reason for many ideas to be scrapped. Yet, here are 14 interesting concept appliances that have made it to the model stage and look so good that we hope they go into development soon. The iBasket is a hamper/washer/dryer combo. The transparent iBasket stores your dirty clothes.
Calculadora de Porcentajes Percentage calculator is a tool that lets you do a simple calculation: how many percent of X is Y? The tool is pretty straightforward. All you need to do is fill in two fields and the third one will be calculated for you. Butterfly valve Duplex valve in wafer butterfly configuration. A butterfly valve is from a family of valves called quarter-turn valves. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid.
Education Theory/Constructivism and Social Constructivism - UCD - CTAG "Constructivism is the philosophical and scientific position that knowledge arises through a process of active construction."(Mascolol & Fischer, 2005) "As long as there were people asking each other questions, we have had constructivist classrooms. Wasting Hackers' Time to Keep Websites Safe Most security software defends PCs and websites by acting like a locked door to shut hackers out. A new security company, Mykonos Software, instead invites hackers in through a fake entrance and plays tricks on them until they give up. “If you break in, I want to have fun with you,” says David Koretz, CEO of Mykonos. Koretz claims that the computer security industry is too timid—he advocates making hackers’ lives tedious and difficult instead. Mykonos sells software intended to protect websites against attacks—like those on Sony’s websites last year that yielded thousands of credit-card numbers—aimed at gaining access to valuable data such as user credentials. When Mykonos’s software identifies an attacker, it tries to waste the hacker’s time by offering false data such as phony software vulnerabilities and fake passwords.
Sensible heat Sensible heat is heat exchanged by a body or thermodynamic system that changes the temperature, and some macroscopic variables of the body, but leaves unchanged certain other macroscopic variables, such as volume or pressure.[1][2][3][4] The term is used in contrast to a latent heat, which is the amount of heat exchanged that is hidden, meaning it occurs without change of temperature. For example, during a phase change such as the melting of ice, the temperature of the system containing the ice and the liquid is constant until all ice has melted. The terms latent and sensible are correlative. That means that they are defined as a pair, depending on which other macroscopic variables are held constant during the process.
robot adapts to injury Lindsay France/University Photography Graduate student Viktor Zykov, former student Josh Bongard, now a professor at the University of Vermont, and Hod Lipson, Cornell assistant professor of mechanical and aerospace engineering, watch as a starfish-like robot pulls itself forward, using a gait it developed for itself. the robot's ability to figure out how it is put together, and from that to learn to walk, enables it to adapt and find a new gait when it is damaged. Nothing can possibly go wrong ... go wrong ... go wrong ...
Ventilation ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers ASHRAE Standards Air - Altitude, Density and Specific Volume The density and the specific volume of air varies with the elevation above sea level