What are some common uses of californium?
Some applications of californium:
- neutron source as Cf-Be source
- neutron source for neutron activation analysis (portable installations)
- neutron radiography
- irradiation for some cancers treatment
- nuclear fuel rod scanning
- neutron source to detect water, petroleum, metals, methane
etc.
What is a Explosives Vapour Detector?
It is a device for monitoring air quality, typically within a building, to warn against the build-up of explosive gases such as propane, methane, or gasoline vapor. These devices are commonly used in manufacturing facilities using highly volatile solvents (eg for degreasing) or storage facilities for such chemicals.
Inexpensive, single-gas alarms (eg for propane) are avail for approximately $50 for recreational vehicles, to guard against a tank or line leak. Industrial grade monitors which provide telemetry back to a SCADA system will be many times that price.
Transitions lenses are embedded with microcrystalline silver halides. The silver halide reacts with the ultra violet light produced by the sun and this causes the lense to become darker. Unfortunatly over time the silver halides will begin to fade much like and poster would sitting by a window being constantly hit by the sun.There isn't really anything you can do to prevent this, things wear out its just the way of life.
How much small cubes can fit in 1 big cube that is 20 by 20cm?
Without specific measurements for the small cube there's no way to tell; it could be anywhere from 1 small cube to an infinite number.
Assuming, however, that the small cube is 1 cm x 1 cm x 1cm (1 cm cubed), then 8000 of the small cubes would fit inside. That's 20*20*20, because the big cube is 20 times as large in three different dimensions.
What is an insulator electricity?
A material which is very resistant to electrical flows. Typical insulators are rubber, plastics, ceramics and glass.
A material that blocks the flow of electrical current. ie, porcelain, bakelite, rubber etc.
What is the working principle of an air conditioner?
If you are asking how it cools down the room, air conditioner or its vents are usually located at high areas. Since warm air rises, they take the warm air and make it cold. Cold air is denser and heavier which therefore falls. This process is repeated until the temperature of the whole room is the same. It uses a convection current.
What are the forces act on a retaining wall?
Outward Force: dirt pushing against retaining wall
Inward Force: atmospheric pressure, the retaining wall pushing against the dirt
Downward Force: gravity, atmospheric pressure, the retaining wall pushing against the earth.
Upward Force: The earth pushing against the retaining wall.
In baseball, the time of pitch is that instant when the pitcher has begun his pitching motion and, by the rules, has committed himself to throwing the pitch. This instant thus occurs before the pitcher actually releases the ball. Once a pitcher commits himself to throwing a pitch, it is illegal for him to return to his set. If that happens, he is charged with a balk, and any baserunners are allowed to advance a base.
A baserunner's time-of-pitch base is the base which he has last legally reached at the time of pitch.
In the case of working metal, flux is a chemical cleaner used to remove oxidation. For example, if you are a plumber and are fitting two pieces of copper pipe together for a water line, you would prep the ends of the pipes with flux before soldering the coupling to them. It also helps get a smooth solder line because it prevents the solder from beading up.
In some circumstances, like working with molten metal, it is used to add or remove quantities of wanted or unwanted materials.
It hangs from your keys.
There are a variety of electronic key fobs that do different things.
Some emit a signal detectable at close range. This signal is detected when the fob is held near the receiver, which then takes the appropriate action (unlock the lock, credit reward points to the proper account, whatever.)
Some use an algorithm to display a security code as a sort of "triple handshake" to log in to things over an unsecured network more securely. This code, plus the machine you are logging into, plus the machine authenticating you for access, all have to be on the same page or you don't get in. If you are missing the fob, you are missing an important part of your "key" and will be locked out.
There are more, these just common types.
How do you select a size of the gravity disc for a purifier?
To select the size of a gravity disc for a purifier, first consider the flow rate of water that needs to be filtered. Then, choose a gravity disc size that is suitable for that flow rate to ensure effective filtration. Additionally, consider the specific requirements of your purifier system and choose a gravity disc size that aligns with those specifications for optimal performance.
What generally produce static?
Any materials containing woven fibers, or natural fibers like wool, cotton, and acrylic fibers as well. Mostly it is a connection between a negative object and a positive object resulting in positive and negative charges.
How far does a plastic megaphone make your voice travel?
A plastic megaphone can amplify your voice up to 100 feet away, depending on the size and design of the megaphone. The shape of the megaphone directs and focuses the sound waves to increase the volume and distance the sound can travel.
Yes, some solvents can be harmful to human health if inhaled, ingested, or absorbed through the skin in large amounts over a long period of time. Exposure to solvents can cause various health issues, such as headaches, dizziness, respiratory irritation, and neurological effects. It is important to use solvents in a well-ventilated area and follow safety precautions to minimize the risk of harm.
Are all AAbatteries exactly the same length from the -pole to the tip of the plus pole?
No, not all AA batteries are exactly the same length. While they typically have a standard length, variations in manufacturing processes between different brands or types of batteries can result in slight differences in length.
Why galvanometer called sensitive instrument?
A galvanometer is called a sensitive instrument because it is capable of detecting even small currents passing through it. Its design allows for precise measurement of small electrical currents, making it highly sensitive to changes in current flow.
What are types of forces that pull plates apart?
Types of forces that can pull plates apart include tensional forces caused by divergence at divergent plate boundaries, as well as thermal convection currents in the mantle beneath them. These forces result in the plates moving away from each other, causing the formation of new crust along mid-ocean ridges.
A pixel position refers to the specific location of a pixel on a computer screen or display, typically represented by coordinates within a two-dimensional grid. These coordinates are used to precisely define where the pixel is located on the screen, allowing for accurate rendering of images and graphics.
When air passes through a cooling coil what is the effect on its moisture content?
When air passes through a cooling coil, its moisture content can decrease as the air temperature drops below its dew point. This causes moisture in the air to condense on the cooling coil surface, reducing the humidity level of the air.
How much do leprechauns weight?
Leprechauns are mythical creatures, so their weight is not based in reality. In folklore, they are often portrayed as small and light, but their weight would ultimately depend on the imaginative interpretation of the story or depiction.
i don't know what you mean if you mean like pause the world that's not possible
it is possible but not how you see in the movies, to pause time you need to be at an extremely high speed. you wont be able to use a vehicle like a car or a boat you would have to use ether a space ship or a jet as you have heaps of room to go in one straight line. once done you will have to stay at the speed other wise time will start for you again. you will be able to go around the world without any one knowing
unfortunately there is no type of vehicle that could get to this speed
if there was it would be cool.
To be more specific, the ISS, the fastest-traveling man-made object in close proximity of Earth (as of 2015), travels a hundred miles a second, and traveling that fast only makes a difference of less than a minute if you stay up there for nine months.
Iron technology was perfected by the?
The late cave man perfected iron or so it is believed, but archeologists have found that iron was perfected in many places at the same time.
Placing the ice compartment at the upper portion of a refrigerator takes advantage of cold air sinking to keep the ice frozen. Cold air is denser and tends to fall, so by placing the ice compartment at the top, the cold air can naturally flow downward and help maintain the temperature needed to keep the ice frozen.
How error in binary data can be detected?
Error in a binary stream or object can be detected using Error detection techniques. (usually called EDC, or error detection and correction)
Errors can be detected in many ways, but they all involve adding some redundant data along with the original message. The process for calculation of these bits is repeated while checking, and if there is a match, the data is accepted, else it is rejected (which usually involves applying data correction, or request to resend the data)
Type of error detection are :