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What else can I help you with?
Who discovered the islets of langerhans?
The person who discovered the pancreas cells is Paul Langerhans, a German biologist and pathologist. These cells called "Islets of Langerhans" are cells in the kidney that produce insulin, the blood suger level reducing hormone (i.e. if these don't work, you have diabetes). Occasionally, "Isles\Islets of Langerhans" are used as a form of comedy or nonsense place names.
Why do people grow and die?
Well, it depends on what you mean, like they can die of old age, when you die of old age it's because your system starts to shut down, and there aren't anymore blood cells to help you, because when you're younger your blood cells reproduce and grow and grow and grow ! But as you age older, your blood cells start to die can't produce.
What is the definition for energy transformation?
You keep on having energy but under another form. For instance, the light energy that you get from the sun, you may convert it into electricity by using photovoltaic cells or equivalent. Now, you haven't the heat from the sunlight, but you can use the generated electricity to produce heat again. You can transform energy on a direct way or the transformation shall follow some steps. Transformation of energy means that you can obtain determined kinds of energy which fits better for your purposes.
Why did Zacharias Janssen call cells cells?
The reason Zacharias Janssen called cells, cells is that when he looked at them they looked like actual cells like in jail or prision. hint cells
What is the name for cells in middle latitudes?
Ferrel cells are the name of the cells in the middle latitudes.
How can the power of the sun be converted?
Photo-voltaic cells absorb solar radiation energy and produce direct current output. A number of these cells arranged as an array can produce a useful amount of electric power.
How can you use the sun as a source of energy?
Through photovoltaic cells to produce electric current directly, or by direct absorption to heat water
Are dry cells a source of constant direct current voltage?
Yes.
Which is a source of ac current a) a battery b) a generator c) chemical cells wired in series d) chemical cells wired in parallel?
b) a generator. Generators create alternating current (AC) by converting mechanical energy into electrical energy through electromagnetic induction.
What kind of current is produced by dry cells?
Simply, direct current (DC). The amount of current depends on the circuit it is used in.
What effect has the number of armature paths upon the current carrying ability of generator?
What effect has the number of armature paths upon the current-carrying ability of a generator?
What is a direct currnet?
Direct current is a flow of electricity which only goes one way. Batteries, for example, produce direct current, so the current must flow all the way through a circuit and back into the battery to work. Alternating current is what comes out of a wall outlet, and it alternates in both directions, with current flowing in and out of the outlet.
How does solar power produce energy and what are the mechanisms involved in this process?
Solar power produces energy through the conversion of sunlight into electricity using photovoltaic cells. These cells are made of semiconductor materials that absorb sunlight and generate an electric current through the photovoltaic effect. When sunlight hits the cells, it excites electrons, causing them to flow and create an electrical current. This current is then converted into usable electricity through an inverter, which changes the current from direct current (DC) to alternating current (AC) for use in homes and businesses.
Where do you find alternating and direct current?
alternative current Alternating current is produced by a type of generator called an alternator. Direct current is produces by a generator called a dynamo, or by rectifying altenating current, or solar panels, or cells and batteries.
What is current flowing in One Direction?
Direct current (DC) is the type of current that flows in one direction continuously. This is in contrast to alternating current (AC), which changes direction periodically. Examples of devices that operate using DC include batteries and solar cells.
What produces a direct current?
The main source of direct current is the conversion of alternating current. Typically, AC is a sinusoidal waveform. Using what is called a full-wave rectifier, one can make all of the negative halves of the waveform positive. This means the waveform will have a series of humps in the positive region. This, however, is not usable DC yet; one must use a filter, or a series of filters, to smooth out the waveform until it is roughly linear and constant. The resultant signal is direct current. This is roughly what is contained within power adapters that you plug into your electronics from the AC wall outlet; they convert the AC signals to DC so the electronics can use the electricity.There are many reasons for doing it this way. Mainly, though, AC power is easier to produce and more efficient to transmit over long distance. DC, however, is often more usable, so the AC is converted after transmission.Another example of a DC source are solar panels, or photovoltaic cells, which produce electricity when hit by light.
What is DC power?
Direct current (DC or "continuous current") is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also be through semiconductors, insulators, or even through a vacuum as in electron or ion beams. In direct current, the electric charges flow in the same direction, distinguishing it from alternating current (AC). A term formerly used for direct current was Galvanic current. Direct current may be obtained from an alternating current supply by use of a current-switching arrangement called a rectifier, which contains electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be made into alternating current with an inverter or a motor-generator set. The first commercial electric power transmission (developed by Thomas Edison in the late nineteenth century) used direct current. Because of the advantage of alternating current over direct current in transforming and transmission, electric power distribution today is nearly all alternating current. For applications requiring direct current, such as third rail power systems, alternating current is distributed to a substation, which utilizes a rectifier to convert the power to direct current. See War of Currents. Direct current is used to charge batteries, and in nearly all electronic systems as the power supply. Very large quantities of direct-current power are used in production of aluminum and other electrochemical processes. Direct current is used for some railway propulsion, especially in urban areas. High voltage direct current is used to transmit large amounts of power from remote generation sites or to interconnect alternating current power grids.
