2. A solid is rigid and cannot be compressed easily. Reason: Molecules are closely spaced and the intermolecular separation is very small which cannot be reduced further. 3. A solid does not diffuse into another solid easily. Reason: Intermolecular force of attraction is very strong. 4. A solid does not flow and can be stored in a container. Reason: Intermolecular fore of attraction is so strong that molecules do not flow and leave the surface of the solid. 5. A solid on hating usually changes into its liquid state.
To PWM, or not to PWM, That is the Question. Pulse width modulation (PWM) is a fancy term for describing a type of digital signal. Pulse width modulation is used in a variety of applications including sophisticated control circuitry. A common way we use them here at SparkFun is to control dimming of RGB LEDs or to control the direction of a servo motor.
SWM stands for single-wire multiswitch and the SWM8 is a single-wire multiswitch that can control up to 8 DIRECTV satellite tuners. That means a single SWM8 can control up to 4 DVRs total (2 tuners per DVR), up to 8 single-tuner receivers total, or a combination (eg. 2 DVRs and 4 single-tuner receivers). The SWM8 should not be confused with the SWM5, which is a SWM that has a smaller capacity than the SWM8.