The vagus nerve innervates critical organs, such as the heart and lungs, making vagus nerve disorders serious. The symptoms of vagus nerve disorder can include cardiac, gastrointestinal, and sensory problems. slide 1 of 4.
KraGorn Active Member. Short throw means a short distance between projector and screen .. say 1-1.75 times screen width as a rough guide, long throw is the converse being 1.75+. That means the HS51 is certainly 'short', from the spec:  Short Throw Lens (100 < 3m), ie. you could fill a 100 diagonal 16:9 screen (7'+ screen width) from less than 9'. I don't know the Sony but generally I think Lens Shift works at least 1/2 height and/or 1/2 width depending on what it's capable of.
If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen.(7 * 2 and 7 * 2.4 = 14-16.8).Example 2.he ratio, like any ratio, is dimensionless. For example, if D equals 10 feet and W equals 5 feet, then 10 feet divided by 5 feet equals 2. The dimension of feet is thereby cancelled out. So, in knowing this formula, a projector's throw ratio will provide you with all of the information you'll need to set up a room.