In this guide to the best Canon flashguns, I'm taking an in-depth look at the Canon Speedlite range. From beginner units and mid-range flashes, all the way up to the current flagship professional ...

The year is running away, but the camera rumors are as persistent as ever – and honestly, they're also more accurate than they've been in a very long time! As always, though, the internet is gonna ...

In the earliest Christian movement, there were actually many different writings circulated, and many traditions about the sayings of Jesus. Some of the leaders were concerned to say, "Well, which of ...

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在燃气输送的管道中，在石油开采的深井作业里，在煤矿掘进的幽暗巷道中，甲烷——这种无色无味却极具危险性的气体，当 ...

Abstract: This letter is part of a three-part tutorial that focuses on joint radar-communication system design for vehicular networks. As Part I of the tutorial, this letter reviews the fundamental ...

Greaseweazle is a hardware and software solution that lets you archive or regenerate old floppy disks. Reading them is useful for recovering old data or forgotten programs that you can use in your ...

The side by side comparison tool lets you easily view the specifications of two or more cameras. Choose the cameras from the list of the left then press compare. The results will be displayed in a new ...

The side by side comparison tool lets you easily view the specifications of two or more lenses. Choose the lenses from the list of the left then press compare. The results will be displayed in a new ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...