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geek in spain

the solar towers

we noticed the towers on our first foray into seville, many months ago. they are striking in the distance, gleaming high above the rolling hills of the andalusian landscape. a bit of googling came up with a name, or a couple of them in fact: ps10 and ps20 solar power plants of sanlúcar la mayor.

so intrigued were we by this massive development, that we decided one day we would do a detour to check them out — i even put it on the 101 list. last week was the day we finally did it!

the concept is simple: an array of movable mirrors that reflect the sun into a tower. the mirrors (called heliostats) follow the sun in its path, to maximize the amount of light and heat transferred to the tower. the heat turns water into steam, which is then in turn converted into electricity. it also lights up a lot of dust and water in the air, making it look ethereal … and stinging the occasional animal that flies in the light’s path! :)

the towers produce 10 and 20MW respectively, but the whole complex, which includes the towers and three fields of (normal) solar panels nearby, is said to produce a total of 300 MW — enough to power a city the size of seville. pretty neat, right?

now that the spanish economy has crashed and solar panels’ prices have dropped, these heavily subsidised towers don’t seem to be the most efficient way to generate electricity any longer… still, they’re an impressive show of engineering and ingenuity, and i’m glad we did the detour to explore them! more of these adventures, please.

Categories
geek

rathernice

rathernice

feeling grateful for one of the sweetest chrome extensions out there. a bit of cheering up goes a long way in these dark times.

Categories
geek in portugal postcards postcrossing video

on talking about Postcrossing at TEDxOporto

“i’m a pretty monkey and i know where all the bananas are!”

that’s what i kept repeating to myself before going on stage on tedxoporto in early march. my palms were sweating, my heart was racing, and in my mind, i kept coming back to matt haughey’s pretty monkey’s motto which he wrote about on a post on being an introvert and giving public speeches.

i think both paulo and i are huge introverts. we don’t enjoy the spotlight and if given a chance, we’ll scurry to a quiet corner somewhere rather than shake hands and hand over cards. so when we got this invitation to do a tedx talk in my hometown, our first reaction was a bit uneasy. we love the ted concept and have a huge deal of respect for what they do… but did we have what it takes to be on stage in front of hundreds of people? could we make it interesting enough for them?

we were skeptical… but the organizers were quite adamant and trusted that we’d do a good job. so after some back and forth, in the end we said yes – and quickly sprang into action! for over a month, we plotted, saw dozens of ted talks, took online classes on public speaking, read all the advice we could find, wrote and re-wrote… everyday, we’d finish work and come back to that speech, going over it time and over again. was the message clear? did the structure make sense? and particularly, what did we want people to take away from this?

slowly, we came to the conclusion that what we wanted to achieve through this talk was to make people rediscover the magic of receiving a postcard. i imagined many of them had probably forgotten what that felt like – so i though it was important to replicate this spike of pleasure we feel when we open our mailboxes and find something exciting there. i felt that if i could do that, if that was the one thing they would remember from my talk, then that wouldn’t be so bad!

but… receiving a postcard is not something that can simply be felt through description. so instead, i decided to ask our community if they’d help me share the feeling with the people there, by writing postcards to the attendees. and what do you know? they responded in droves, sending over 1000 postcards in a week!! the turnout was so massive that most people took not just one card home, but two! :) reading through those cards as we put them in envelopes was a really heartwarming experience. all of them were special in their own way – but many even included sweet notes like “please give ana a big round of applause, she’s nervous!” or “so you’re listening to ana talk… i’m sure she’s rocking it!”, which in some cases brought tears to my eyes. the generosity and trust of this community knows no boundaries and i knew then that i had done the right decision in accepting this task.

soooo… on the big day, spiked by adrenaline and with shaky hands, the two of us plus a bunch of tedx volunteers glued all of the 700-something envelopes to the chairs in the auditorium during a coffee break in the talks… and then i went on stage and just did it:

the whole time i was up there, it felt like my heart was going to leap out of my chest… but i’d ran through this presentation so so many times before, it just kind of tumbled out of my tongue in the right sequence. and despite my nightmares (in which i would mix the numbers and say postcrossing had 22 million members instead of postcards), i think it went ok.

looking at it now, i wished i had moved less… or been less fidgety with my hands… or slowed down and looked up more… i guess it’s pretty obvious how nervous i was. when i walked down the stairs after the talk, i had absolutely no recollection of the words i had said!

but i guess the important thing was, i felt the part. i was the pretty monkey, and i knew where ALL the bananas (aka the postcards!) were. so i told everyone, and it was fine. phew! :)

if you’ll allow me my little moment, i’d like to thank our friend joel, who first mentioned the project to norberto at tedxoporto – and of course, to norberto himself, for believing in us. to sofia & andreia for their reassuring support. i’m grateful to all the volunteers who frantically helped us glue hundreds of postcards on the chairs during the break… to my mom for ironing my clothes and fussing over me in her loving way. but most of all to paulo. i said on the talk that we did it, but truth is, he did it. my part on starting this whole postcard revolution was minimal – he’s the real deal here, and i love him for it.

Categories
analogue wednesdays geek photography

analogue wednesday #7

coders of the world!
tempelhof, 2012. more random double exposures.

Categories
geek postcrossing

the arduino counter

this past christmas, i gave the boy an arduino microcontroller and an lcd keypad shield, which he has been programming into a postcard counter for postcrossing.


i love the simplicity behind the arduino concept, and its flexibility… there are so many things you can do with it – it’s like lego for grown-ups!

an italian friend showed us the beautiful documentary about arduino below, which shows not only arduino’s roots and inspiration, but also the little details – like how it took them one year to make the perfect blue for the board. it only made me like it more! :)