To generate a virtual image that approximates the true image, such that the relative predicted positions of any two neighboring spots does not flip-flop, the window of error for spot prediction should be, at most, half this average distance or 0.35 cm.
With dynamic glazing, the homeowner flips a switch and the window can be adjusted so much that its coefficient drops as low as 0.09, which means that the window itself is blocking almost all of the heat.
I catch one wonderfully evocative moment when the eerie notes of Cage's piano music are suddenly joined by the recorded sounds of dancing feet, just as an unseen mechanism flips open the window shutters, spilling daylight into the gallery along with a wave of street noise.
No longer just for home entertainment, the smartphone-as-remote can use apps, with their infinite variety of interfaces, to control a limitless number of devices: to turn up the A.C. or turn on the heat, flip a light switch, lower the window shades, start a car, trigger a home-security camera, and, of course, change the TV channel.
When she said that to me, she said it in a way that made it sound so easy - like there was no other choice but to take what we're always known, and throw it out the window, flip it on its head, turn it around 180 degrees so it's facing the complete opposite direction.
I take notes in word processing programs using a keyboard, so the inability to flip quickly between windows and the slower copy and paste would be an inconvenience to me, but notetaking is always idiosyncratic.
The polar bear, whose name is Gus, keeps on swimming in a tight little figure 8, gracefully pushing off his artificial rock pile with a huge hind paw, languorously backstroking, then turning a neat diving flip by the underwater window.
David flipped his cigarette through the window.
