Microblog: A very long article Wikipedia article on the orientation of toilet paper [Jun 7th, 22:52] [R]

Saturday, October 13th, 2007

UV LED Lamp

Translation: [ Google | Babelfish ]

Categories: [ DIY ]

UV_Lamp_1

I bought some time ago Die Nacht der Magier, which is a board game with phosphorescent pieces, played in the dark. I read on the Web (therefore it has to be true) that phosporescent paint is getting “recharged” much faster with UV light than with white light. So I had to build a UV lamp. I bought UV LEDs at LSDiodes.com, and I finally built the device.

It has 10 LEDs, connected in parallel two by two with an 18 Ω resistor for each pair of LEDs, and is powered with a 4.5 V alkaline battery. Each diode is supposed to draw 20 mA and to have a forward voltage of 3.6 V, while the battery, providing 200 mA, sees its voltage drop to 4.3 V. In practice, it seems that the battery is not always able to do so, and during the first test after building the lamp, it provided only 80 mA. Another time, it was 130 mA.

UV_Lamp_2

UV do recharge the phosphorescent paint quicklier than while light. Also, I discovered that teeth are fluorescent, as well as soap (but not fluor toothpaste), white paper, many colored plastics in children's toys and white cloths (including those which have been washed with washing powder supposed not to contain optical brighteners). Also, the UV lamp allows to see the pattern of the mattress through the bedsheet. UV light is lots of fun.

[ Posted on October 13th, 2007 at 22:53 | no comment | ]

Yin shi nan nu (Mange Bois Homme Femme)

Translation: [ Google | Babelfish ]

Categories: [ TV/Cinema ]

http://www.prathamam.org/index.php?rGAkn6RyrIlNXtDnJLUGFZYYQvH87XUWcKNY1Q8VstQWv0FVOpxvqSdiHtpfIuPx

© Prathamam.com

Un film d'Ang Lee (1994).

Chu est le meilleur cuisinier de Taipei, mais il souffre d'anosmie depuis longtemps, et c'est son collègue et ami Wen qui lui prête son nez. Chu a trois filles, une qui est prof de chimie, l'autre est cadre dans une compagnie aérienne et la troisième travaille dans un fast food. Les trois filles sont célibataires et vivent chez leur père, mais elles rencontrent toutes les trois un homme : pour la première, il s'agit d'un prof de sport, fraîchement arrivé au lycée où elle travaille, la deuxième (qui a un ex copain qu'elle revoit régulièrement), un collègue qui était auparavant en poste à Amsterdam, et la troisième récupère le copain de sa collègue qui n'avait pas l'air d'y tenir tant que ça. Quant au père, veuf depuis 16 ans, il tombe amoureux de la voisine, mère d'une petite fille à qui il prépare chaque jour un repas somptueux qu'elle emmène à l'école (la mère de la voisine avait bien essayé de lui mettre le grappin dessus, mais elle était vraiment trop insupportable).

[ Posted on October 13th, 2007 at 22:03 | no comment | ]

Discovery

Categories: [ Beer/Fuller's ]

Discovery

“… malty taste, biscuity flavours. Liberty hops give a zesty character and fruity bite, whilst Saaz hops add gentle bitterness…”

Flowery smell, but otherwise just another ale. Contains malted barley and wheat.

Fuller Smith & Turner, London, England. 4.2% alcohol.

[ Posted on October 13th, 2007 at 15:01 | no comment | ]