Sunday, August 23, 2009

the action of 22&23-8

Party on saturday in Saint-Etienne-de-Crossey with a lot of people :)




the largest bug ever! a finger size!


the sky


-----------------------------
Ludi parc in villard de lans sunday
with Anton, Elstelle, vincent, Max, Sallialy, Deeky, Laury, Emily & Maxy

we did treeclimbing!! and archery:




Salyha with her last arrow


the ones admiring the pros :)


http://www.youtube.com/watch?v=eWIgdBif19Y

the action of 22&23-8

Monday, August 17, 2009

walibi rhones alpes 16-9-09

one of the pic from the zigzag






i brought the girls out and they wanted some barbapapa ... they had the eyes larger than their stomacks...


ok i am tired, i ll just lie there ... see you soon...


http://www.youtube.com/watch?v=7E4JYKH1q7k

Sunday, August 09, 2009

8-8-09 La fĂȘte du lac d'Annecy - fireworks



the pods... the big one and my gorillapod (close to Laura)





The fireworks in almost HD 1280x720
(http://www.youtube.com/watch?v=7OmEJmepJEw)






Le clair de lune. (i suspect the second moon is an optical aberration)

Sunday, August 02, 2009

Col de la Pra - from 1320m to 2186m

the GPS track


The lake



going a bit higher




Sometimes ice carries stones while going down the mountains and draws lines on the surface of the ground :


do i really have too much imagination?


the purple flowers that are taller than me!!






video of the crazy things i do when i am alone ;) and also at 3.0 min the drawings of the wind at the surface of the lac du Crozet (1974m)
http://www.youtube.com/watch?v=CREHQwiPuXw


The end... from the top...

Thursday, July 23, 2009

how to... use a grill made for 125VAC in europe with 220VAC power

A grill is a resistor... not sensitive to absolute voltage but rather to the Ohm effect from P= U.I
how to easily decrease the power of the 220VAC lines then?
i use a diode resisting to 10 Amps and isolated for 400V mounted on an aluminium sheet. why 10 Amp? the max power of the grill is 750W for 125V so "Imax"= 6 Amp, however, since it is 220 V that i will plug it into, i should expect twice that max intensity.. 12Amp maximum but only for a really short time for each period... there was no cheap 12A diode in the store...

so the diode will avoid to have both the phases of the sinusoide passing through the resistor, thereby decreasing the power to normal use under "1/2 pulsed" 220 VAC



The connections on the pics are rudimentary but safe. The electric isolation of the heat dissiparor will come later. I noted the diode 's heat radiator does not heat up too much which is good :)

and...
IT WORKS!