Both tramadol and hydrocodone attach to receptors in your brain to change your perception of pain. However, tramadol also allows the chemical messengers norepinephrine and serotonin to remain available to your brain for a longer period. It is believed that this helps block pain signals in your spinal cord.
In cinematography, the Dutch angle is one of many cinematic techniques often used to portray psychological uneasiness or tension in the subject being filmed.
LNB skew angle is the rotational position of an LNB on the dish arm. All LNBs (except those used for receiving circular polarised signals) require their rotational angle (skew) to be set within certain limits in order to minimise errors in data received.