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HP Deskjet 990 cxi problem
merciadriluca
36 views
Does anyone have the same problem? Hear from 0:09 to 0:11, from 2:43 to 2:45, at 2:56, and from 3:16 to 3:25. Note that, as can be seen, printing works!
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Bicycle wheel windmill (Step 1), second video
merciadriluca
170 views
Here is my bicycle wheel windmill. Its building is not finished yet (this is Step 1), but it works pretty nicely (make sure plastic foils are installed correctly between op...
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Bicycle wheel windmill (Step 1), first video
merciadriluca
77 views
Here is my bicycle wheel windmill. Its building is not finished yet (this is Step 1), but it works pretty nicely (make sure plastic foils are installed correctly between op...
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Effects of closing a partition door of Gyproc on network attenuation
merciadriluca
125 views
I here close a partition door of Gyproc to find its influence on network availability (GSM network is 1,8 Ghz, and WiFi is 802.11 n, 2,4 Ghz in Belgium).
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Effects of closing a metal shutter on network attenuation
merciadriluca
63 views
I here close an electric metal shutter with 6 mm slits to find its influence on network availability (network is 1,8 Ghz, in Belgium).
It is generally considered that an...
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Diverging lenses: real object and virtual image (object before the focal point)
merciadriluca
364 views
Consider a real object (that is, an object whose p is smaller than 0) whose image needs to be found when it goes through a diverging lense. Then, if the object is before th...
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Converging lenses: real object and real image (object before the focal point)
merciadriluca
108 views
Consider a real object (that is, an object whose p is smaller than 0) whose image needs to be found when it goes through a converging lense. Then, if the object is before t...
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Pacman contour integration
merciadriluca
456 views
If you want to compute some real integrals, using a contour method for holomorphic functions might be interesting. The "standard" contour (half-circle Re^{i\theta} and t on...
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Projective Geometry: finding the rabattements of points using S_R
merciadriluca
202 views
This video illustrates some rabattements of points using the rabattement of S.
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Monge (Descriptive) Geometry: finding the common perpendicular between two lines, and distance
merciadriluca
904 views
Consider two lines: (a) and (b), not frontal. To find the common perpendicular between those two lines,
1. create perpendicular planes, with traces alpha', alpha, beta', ...
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