Copper bulbs themselves are a redstone power source. If you were to place aredstone comparatorso that it is reading the signal of the copper bulb, it will light up if the bulb is on. The signal will always be 15 no matter the oxidation of the bulb. If the bulb is off, it will n...
If you place a redstone comparator the bookshelf will send out a redstone signal anytime you place a book down into it. The overall strength of the signal will depend on how many books are placed in the bookshelf. This is a great way to incorporate a decorative looking block into your...
Redstone rocket to propel a satellite -- Explorer 1 -- into Earth's orbit. Explorer 1 carried instrumentation to detect cosmic rays and revealed, in an experiment led by James Van Allen of the University of Iowa, a much lower cosmic ray count than expected. This led to the discovery of...
Daylight sensors are used to detect time of day in Minecraft by measuring the level of daylight, then emitting a redstone current equal to the strength of the light. With some clever redstone, they can also be turned into night sensors. This means that they can be used to make time bomb...