I want to know how do you build a homeade
seismograph?
Build simple electroscope - discharge time can show humidity and ionisation situation
Seismograph
Zhang Heng was the firts to invent the earthquake weathercock in 132 A.D.
it help tell the direction of where it came from and the slightest movement will make the ball fall if you are referring to the ancient china one
Detector rails generate redstone energy (for a redstone wire or other contraption) when a minecart is on them. You can make a simple minecart accelerator by placing rails like so: [minecart rail][detector rail][powered rail][powered rail][detector rail][minecart rail]
i just asked for a frequency detector jst as brain wave detector.
there are two types:- 1) simple diode detector 2) practical diode detector the diode is common device used in am demodulator. signal(am demodulator signal ) is applied anode and output is taken from cathod
Yes, and you wouldn't need the motion detector.
There is a device called a radar detector, but it will only detect a radar signal, not police in general.
Your smoke detector may be beeping because the battery is low or the unit needs to be replaced. To make it stop, try replacing the battery first. If the beeping continues, consider replacing the entire smoke detector.
To make an earthquake alarm model, you can use a sensitive seismic sensor connected to a microcontroller or Raspberry Pi board. The sensor should be programmed to detect vibrations characteristic of earthquakes and trigger an alarm system such as a buzzer or LED lights. You can also add a battery backup system for continuous operation during power outages.
Sure, but what you would have to do would be to put the switch in the TEST circuit of the detector.