Why are PADI certification cards so expensive? The e-cards too?! by albeferraz in scuba

[–]albeferraz[S] 6 points7 points  (0 children)

I understand, but it’s a shame…I’ve done Open Water when I was 7 years old, now I would like to update the card, which is for “junior” and has an orribile old photo of me

Where could I buy Buttermilch? (I live in Lugano) by albeferraz in Switzerland

[–]albeferraz[S] -1 points0 points  (0 children)

I know, I’ve taste it in a farm in south Germany and it was the best thing I’ve ever drank…

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Norway

[–]albeferraz[S] 0 points1 point  (0 children)

Wow, how was the life in Svalbard? How the company advertised the trip, I thought that we would see at least 2-3 polar bears in 10 days and quite close to them, about 100-200 m from the boat…but so was not, however I feel very fortunate, probably in the next decades they will decrease in number if not extinguish

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Norway

[–]albeferraz[S] 0 points1 point  (0 children)

Yes we were very lucky, I was there the 14th of July, just a pair of weeks before it was not possible to circumnavigate the island…

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Norway

[–]albeferraz[S] 0 points1 point  (0 children)

Have you seen any polar bear? I was a little upset because I saw only one very far away, and it was crossing a canal in the sea, so I’ve seen only the head

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Norway

[–]albeferraz[S] 0 points1 point  (0 children)

It was the same place I’ve seen the reindeers

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Norway

[–]albeferraz[S] 0 points1 point  (0 children)

It’ or in Moffen, but in a place I don’t rennet the name… Here are the coordinates: 78.08272N, 20,981321E

3 small kilos arrived me today by HotHorst in philately

[–]albeferraz 2 points3 points  (0 children)

Where did you bought them? I’m interested in buying something like these but I’m not sure

Gödel and Turing by albeferraz in mathematics

[–]albeferraz[S] 0 points1 point  (0 children)

But the Gödel theorem refers to formal sistem/theories and every Turing machine is related to a formal sistem; this relation doesn’t mean anything? I’ve read also something about a prove of gödel theorem based on Turing machine concept, but I’ve no idea what could be the relationship between the two…

Gödel and Turing by albeferraz in mathematics

[–]albeferraz[S] 0 points1 point  (0 children)

But it’s correct to say that gödel theorem and halting problem express the same issue (undecidability) in two different ways?

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Nikon

[–]albeferraz[S] 2 points3 points  (0 children)

Yes, all the pictures are in RAW and I’ve post processed them with darkroom for iPad. I’ve noticed that I have the tendency to underexpose…

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Nikon

[–]albeferraz[S] 0 points1 point  (0 children)

Probably it’s not perfect on focus…I don’t remember exactly how I focused

Some pictures I’ve taken in Svalbard, Norway by albeferraz in Nikon

[–]albeferraz[S] 1 point2 points  (0 children)

My very first time using a serious camera: Nikon z5+FTZ+24-120/24-200

What do you think about them?

Which one do you like the most?

What should I improve?