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What level of electrical current is safe for the human body?
Less than 5 milliamps @ 110 volt.
What is a problem that using nuclear energy causes?
A major problem is disposal of the radioactive waste materials. The stuff takes centuries to decay to a safe level, and until it does you have to find a safe place to hide it...and nobody wants you to hide it in their state.
What is a safe amount of radiation?
Depends on the TYPE of radiation, how long you are exposed and the person being exposed. In the case of ionizing (nuclear) radiation, pregnant women and children have a lower safe level than other persons. For non-pregnant adults, 5,000 millirems per year is the maximum legal occupational exposure. However, the goal is always ALARA- a dose As Low As (is) Reasonably Achievable- meaning you do not expose a person for no reason. Other radiation- such as radio wave energy- has different levels. There is NO "safe" level that does not entail some risk of injury- just levels that are not found to be especially injurious.
Can someone tell how to build a working model of water level indicator with alarm or without alarm?
Yes I can tell how to make one without an alarm. Let us assume that you want it to be very simple and easy to understand, and safe to work on. First, you need a "float", a ball with a rod attached. You could use an old ball from a toilet tank. Attach the rod to a fixed point of the tank, or if in a pond, attach to a post or pier in the pond. Tie a cord to the float rod, near the ball. Run the cord over a pivot point (a pully or nail). Put a small weight (metal object or lead fishing sinker) on the end of the string. Paint a scale (level indication of the body of water) on a piece of plywood. Mount the scale near the weight on the end of the cord. Now as the water level rises and falls, the weight will move up and down. The higher the water level, the lower the scale, so this will be an "inverse scale" with the highest level at the bottom and the lowest level at the top. If you want an alarm, you could place a bell below the weight. As the level rises, the weight will strike the bell, ringing the alarm.
Is fusion power plant safe?
ITER is considered safe. It is easy to stop a fusion reaction, and difficult (so far) to sustain it. The byproduct (helium) is essentially harmless, and can be freely vented into the atmosphere in the event of a catastrophe with little risk to humans, plants, or animals. Concentrations of the gas in an enclosed area could lead to asphyxiation, but the gas itself is light and would readily escape into the atmosphere.
What is a safe decibel level for gun shots on an indoor shooting range?
Less than 80 decibles
Why do you need hearing protection when shooting firearms?
The noise of a firearms discharge often exceeds the safe decibel level for human ears.
What is a safe decibel level for a kids game?
You mean the sound pressure level direct at the kids ear, because the level in decibel is dependent on the distanca from the sound source. Go as far as possible from the noise. Nearly "Safe" is a level of 60 dB SPL, but it makes nervous. Learn about decreasing of the Sound pressure. Scroll down to related links and look at "Sound pressure and the inverse distance law 1/r".
What is the suitable pH level in soaps for infants and babies?
The best pH level for soap the use on an infant is 7. A safe level for humans pH level of soap is anywhere from 7 to 14. This is to mainttain a safe pH level in the skin naturally.
What is the highest safe standing level of an extension ladder?
second rung
Is beyond safe?
If it is built by humans, maintained by humans, for the benifit of humans then it cannot be 100% safe
Is it safe to call to Pakistan from India?
it is safe . HUMANS can call Humans ! love conquers all ... its not safe for the terrorist for others its safe
What electromagnetic spectrum are safe for humans?
in electromagnetic spectrum visible light is safe for humans
What is a basic principle of wildlife management?
Keep animals safe from humans, and humans safe from animals.
Is rabbit pellets safe for humans to eat?
Yes safe!
Is calf starter safe for humans?
Food processed for animal feed is probably not safe for humans. Calf starter is also probably not safe for human consumption.
Is marble safe for humans?
yes
