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Sur 2011, Día 2, Rumbo al Hielo Azul

by Leandro Lucarella on 2011- 02- 24 23:06 (updated on 2011- 02- 24 23:06)
tagged 1/125s, 1/30s, 1/400s, 1/40s, 1/50s, 1/800s, 13.8 mm, 2011, 2011-02-07, 3.2s, 33.0 mm, 5.0 mm, 70.0 mm, aperture-priority ae, arroyo teno, auto, bolsón, bosque, canon powershot sx210 is, día 2, en, es, f/3.1, f/4.5, f/5.0, f/5.9, hielo azul, iso100, iso80, manual, montaña, photo, pic, refugio, río azul, sur - with 0 comment(s)

Máximo 1 persona

Máximo 1 persona

2011-02-07 12:22:45 ART
[ 1/125s f/4.5 iso100 13.8 mm Auto Aperture-priority AE ]
Puente colgante

Puente colgante

2011-02-07 12:27:53 ART
[ 1/400s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]
Río Azul

Río Azul

2011-02-07 12:30:26 ART
[ 1/800s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]
Bosque

Bosque

2011-02-07 14:09:10 ART
[ 1/50s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]
Mirador del Raquel

Mirador del Raquel

2011-02-07 17:23:10 ART
[ 1/800s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]
¡Es por allá!

¡Es por allá!

2011-02-07 17:23:21 ART
[ 1/800s f/5.0 iso100 33.0 mm Auto Aperture-priority AE ]
Arroyo Teno

Arroyo Teno

2011-02-07 18:35:47 ART
[ 1/30s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]
Tunel de deshielo

Tunel de deshielo

2011-02-07 19:31:23 ART
[ 1/40s f/5.9 iso100 70.0 mm Auto Aperture-priority AE ]
Refugio

Refugio

2011-02-07 21:43:29 ART
[ 3.2s f/3.1 iso80 5.0 mm Auto Manual ]

Gecko adhesion

by Leandro Lucarella on 2011- 02- 22 22:53 (updated on 2011- 02- 22 22:53)
tagged adhesion, artificial, en, gecko, research, teflon, wikipedia - with 0 comment(s)

You know how Wikipedia is... One thing led to another and I ended up reading about gecko adhesion in one of its references:

How do geckos make use of the smallest of intermolecular forces to climb walls? Tiny hairs derived from the keratin in the skin on their feet create a large, compliant surface area which makes intimate contact with the substrate. One Tokay gecko (Gekko gecko) may possess several millions of these hairs, called setae. Each seta is in turn subdivided into 100-1000 smaller flattened tips, called spatulae.

Why van der Waals? Although they are the weakest type of intermolecular force, they are ubiquitous and occur between all types of surfaces. This means that the key to dry adhesion is the shape or geometry of the adhesive, rather than the chemistry. Other insects which stick by secretions (e.g. ants, beetles, flies, etc.) are much more picky about what types of surfaces they stick to. Geckos can stick to any surface, with the exception of Teflon, which was specifically engineered to prevent even van der Waals adhesion.

Even more, there is some research on synthesizing artificial gecko adhesives. Very interesting...

Sur 2011, Día 1, El Bolsón

by Leandro Lucarella on 2011- 02- 21 02:56 (updated on 2011- 02- 21 02:56)
tagged 1/160s, 1/200s, 1/500s, 1/5s, 1/60s, 1s, 2011, 2011-02-06, 21.6 mm, 23.3 mm, 5.0 mm, aperture-priority ae, auto, bolsón, canon powershot sx210 is, día 1, en, es, f/3.1, f/4.0, f/5.0, iso100, iso125, iso400, iso80, manual, photo, pic, río azul, sur, unknown (36) - with 0 comment(s)

GPS

GPS

2011-02-06 11:59:59 ART
[ 1/200s f/5.0 iso125 23.3 mm Auto Aperture-priority AE ]
Ruta

Ruta

2011-02-06 12:42:14 ART
[ 1/500s f/4.0 iso80 5.0 mm Auto Unknown (36) ]
Río Azul

Río Azul

2011-02-06 18:00:20 ART
[ 1/60s f/3.1 iso80 5.0 mm Auto Aperture-priority AE ]
Pie al agua

Pie al agua

2011-02-06 18:04:09 ART
[ 1/160s f/5.0 iso400 21.6 mm Auto Aperture-priority AE ]
El hombre del fuego

El hombre del fuego

2011-02-06 21:52:36 ART
[ 1s f/3.1 iso80 5.0 mm Auto Manual ]
Arde

Arde

2011-02-06 21:56:14 ART
[ 1/5s f/3.1 iso80 5.0 mm Auto Manual ]
Pizza!

Pizza!

2011-02-06 22:57:56 ART
[ 1/60s f/3.1 iso100 5.0 mm Auto Aperture-priority AE ]

Lazy Boy

by Leandro Lucarella on 2011- 02- 20 20:13 (updated on 2011- 02- 20 20:13)
tagged en, es, lazy boy, les mentettes orchestra, music, video, youtube - with 0 comment(s)

The King Of The Limbs

by Leandro Lucarella on 2011- 02- 18 19:46 (updated on 2011- 02- 18 19:46)
tagged album, es, music, radiohead, the king of the limbs, video, youtube - with 0 comment(s)

¡Santas cachuchas, Batman, ya salió el nuevo disco de cabeza de radio!

Ya hay video y todo:

No tenía la faceta bailarina de Thom, y me hace recordar lejanamente a Street Spirit.

Ya está leekeado (así que si lo buscan lo van a encontrar), pero la versión electrónica en formato MP3 (320kbps) sale sólo 9 dolarucos, así que bien se puede donar a los muchachos por tantos momentos de buena música.