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Extend Mac OS X's Screenshots

Mac OS X has a variety of built in screenshot methods. Here's a look at a few that offer more versatility than the basic full-screen capture (Command-Shift-3):

• Press Command-Shift-4 and you'll get a crosshair cursor with which you can drag to select and capture a certain area of the screen.

• Press Command-Shift-4-Space to select the entire window that the cursor is over, clicking on the window will then capture it. The resulting screenshot will even get a nice drop shadow.

• Hold down the Space bar after dragging out a selection window to move your selection rectangle around on the screen.

• Hold down Shift after dragging out a selection to constrain the selection in either horizontal or vertical orientation, depending on the direction of your drag.

• Hold down Option after dragging out a selection to expand the selection window around a center point.

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It Really Is a "Series of Tubes"

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No, we're not talking about former Senator Ted Stevens's clumsy description of the Internet; this article from the Stanford School of Medicine Web site instead describes the wildly cool pneumatic tube system used by Stanford Hospital staff to send lab samples around at speeds up to 25 feet (7.6 m) per second - that's roughly 18 miles (30 km) per hour. Pneumatic tube systems were cutting edge communication technology way back in the 19th century, but when it comes to transporting physical objects, they retain their utility even in today's networked age.favicon follow link

 

Comments about It Really Is a "Series of Tubes"

Costco has been using this system for years to send cash from the checkout registers to the office.
Adam Engst  An apple icon for a TidBITS Staffer 2010-01-19 12:39
Now that you mention it, I remember that from our days in Seattle (no Costcos anywhere around Ithaca).
Kevin Patfield  2010-01-25 14:06
They can be used for bits also. When I worked in New York City in the mid-70's I remember being told of a pneumatic tube system running between the major bank head offices downtown and midtown branches. It was easy to show that stuffing one of the carriers with floppy disks (they were 8" in those days) and sending them along created a higher bandwidth pipe than any of the available telecommunication links of the day! Using tubes today with BlueRay discs you could manage a burst rate of 10 GB/s or so over a couple of miles.