Yes, even plastic bag can be used. You just need to create a space of dead air to cause insulation.
Yes, they have plastic sheeting (like saran wrap) on the market for just that purpose, Plexiglas will be more durable then the plastic, the main goal is to stop air movement, (if cold air can come in, warm air can go out) this quick-fix method will never come close to the double an triple glass panes that are gas filled, "as far as R value", but it will help.
Dos is single user single task and windows single user multi task
Windows is named for ability to have multiple "windows" open at once on a single device.
Windows 98 is a single-user operating system.
Yes, this is a great way to exhaust a single hose portable air conditioner. You would simply need to adapt the hose connections to the front of your fireplace. I have seen an installation where the front of the fireplace was sealed with a piece of plexiglas. The plexiglas had been custom cut to fit the portable AC's fittings.
Windows cannot be "wiped out" using a single key.
DOS CUI - Character User Interface Single user Single task Windows GUI - Graphical User Interface Single User (except NT) Multi task
Use an apostrophe to create the single quotation mark.
In a workspace, there are program windows. Consider whole GUI of MS Windows to be a single workspace.
Lowes has a wide selection of energy efficient windows , with choices ranging from; single-hung windows , double-hung windows, sliding windows, to skylights .
Both sashes operate in double hungs.HistorySingle-hung windows used to be the norm in construction. A single-hung window has a fixed top sash that does not operate. The lower sash can be operated vertically. With advances in materials and balancing operations, double-hung windows became standard replacements for single-hung windows.FeaturesThe main advantage of double-hung windows over single-hung windows is that both sashes operate vertically. The top sash can be lowered, and the bottom sash can be raised to allow for fresh air. While you do not actually gain any additional open space, the options for air flow are greater. BenefitsDouble-hung windows are also, generally, easier to clean. Because both sashes operate, they are usually designed so that they tilt in for ease of cleaning. Single-hung windows, due to their fixed state, require access to the outside and inside to clean them. This is particularly bothersome on upper-level windows. WarningThe one possible advantage to single-hung windows is that they can offer increased insulation from the elements. However, this is a minor consideration considering the quality of window design and manufacture in today's marketplace. MisconceptionsIn some instances, a fixed window may be referred to as a single-hung window. A fixed window is a window that does not operate at all. It is a solid piece of glass in a frame. This is not the same as a single-hung window.
If you are talking of DOS OS, no it is not possible as DOS is a single user, single tasking OS but if you are talking of Windows then yes you can open multiple DOS windows and do different work.. But please remember that this is the properties of Windows, not DOS..