SETI@home 3.0 Client Available -- The folks at the SETI@home distributed computing project - which takes advantage of idle systems around the world to analyze radio telescope data for possible extraterrestrial signals - have released version 3.0 of the SETI@home client for Macintosh. Version 3.0 still runs as either a screen saver or stand-alone application, and introduces new highly optimized Fast-Fourier Transform (FFT) algorithms; the performance improvements offered by the new techniques enable the SETI@home client to attempt two types of pulse detection ("pulses" and "triplets"). Version 3.0 also expands the range of Doppler shift rates examined, and tightens its Gaussian curve fitting to reduce the number of false positive reports. The client is also a little pickier about updating its 3D graph, since drawing to the screen can take longer than actually performing the computations. SETI@home 3.0 is a 450K download, and requires a PowerPC-based machine with at least 24 MB of RAM running System 7.5.5 or higher; use of the version 3.0 client will eventually be required to keep participating in the SETI@home project. If you haven't already, consider joining the TidBITS SETI@home team! [GD]
Copy Disk Image as Folder
When you open a .dmg file, a disk image is mounted. You are then generally supposed to copy the contents of that disk image to your hard drive (to your Desktop, your Applications folder, or wherever). But what if you want to copy the whole disk image, including all its contents, as a folder? Hold the Option key, and drag the "proxy icon" in the title bar of the disk image window to the destination in the Finder.
- SETI Brings Space Exploration to Home Macs (24 May 99)
Published in TidBITS 553.
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