Radio waves can be blocked (reflected) or attenuated (partially reflected or absorbed) by anything that conducts electricity. A thin sheet of aluminum can completely block (reflect) radio waves. They simply cannot penetrate it. Salt water (as in the ocean) permits radio waves to penetrate only a very short distance. Similarly, living plant material contains water and dissolved ions (the plant's "blood" or the plants food, if you want to look at it that way). This makes the plant something of a "conductor" of electricity. Now to the nut inside the shell of this answer. When radio waves (electromagnetic energy) encounter a conductor, something happens. The frequency of the radio waves, their amplitude, and the "nature" of the conductor will result in a varying degree of interaction. What happens is that the radio waves stimulate microcurrents within the conductive material (the foil, the salt water, the plant with its moisture and ions, whatever). This interaction reflects or absorbs the energy (to a greater or lesser degree) of the incoming radio wave. The microcurrents don't destroy plant tissues because the power contained in the radio wave is very low (microvolts per meter, and usually less). Certainly if a plant is "right on top" of an electromagnetic source, it will take some heat from the radiated energy. But as to the effect of "regular" radio waves, the damage is not noticable, and the signal will be damped or attenuated by interaction with the plant.
Chances are, the building you're in has a metal roof. This will block almost all radio transmissions.
Radio active material that occurs naturally where human activities exposure to ionizing radiation are naturally-occurring radioactive materials, or NORM. They include uranium and thorium. Radioactive materials are mainly used in engineering and science departments. This type of material emits gamma rays or particles that as radioactive energy.
Hello. I am a 13 year old kid who did this experiment for my science fair, so my answer may not be correct but is quite distinctive in the results. I had three plants. One that was kept away from radio waves as much as possible, one that was sometimes exposed to radio waves from a guitar amplifier, and one that had the aerial of an ordinary FM radio below its leaves at all times. I kept the experiment going for 25 days, and I tried to keep everything else the same. In the end, the radio waves plant grew the most, then came the control plant (radio wave sometimes), then in last place the natural plant. I hope this was helpful, but I understand if you do not rely on this answer. If you really wanted to, you could do this at proffessionally controlled conditions with an oscillator and everything. :-)
Go to Laveder town and go to the radio station. Then talk to the director (the guy in brown).He should give you the Kanto radio card. Be sure you gave the missing machine part to a guy in the power plant.
In Visual Basic, the statement used to test a radio button is typically an If...Then statement. You would check the Checked property of the radio button control to determine if it is selected. For example: If RadioButton1.Checked Then ... indicates that the code block will execute if RadioButton1 is selected.
Yes, lead can block radio waves because it is a dense material that can absorb and reflect electromagnetic radiation, including radio waves.
Yes, carbon fiber can block radio signals because it is an electrically conductive material that can absorb and reflect electromagnetic waves.
GPS is a radio signal. Metals block radio signals. Aluminum is a metal.
GPS is a radio signal. Metals block radio signals. Aluminum is a metal.
Materials such as metal, concrete, and thick walls block radio waves most effectively.
Metal is the material that blocks radio waves and prevents their transmission.
if someone is playing there radio veryloudly, and have been asked repeatedly to turn it down, but refuse. is there any way to block the received radio signal.
If you call a radio station frequently with stupid stuff, the station will block your call.
Do you mean the Power Plant? Are you looking for the way to activate your radio in Kanto? That can be done at the Power Plant.
Phosphorous 32 is an radio active one. As this is along with the fertilizer then this would be absorbed by the plants. By tracing the presence of these radio active material in the stem we can know about the amount of fertilizer absorbed by the plant and the season when such absorption is more effective could be understood.
Radio
A block diagram of the RFID or radio frequency identification can be found online at places like TI.com and Colorado.edu.