Microblog : A very long article Wikipedia article on the orientation of toilet paper [7 jun à 22:52] [R]

Vendredi, 7 septembre 2018

Jour 8

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-09-07_1 nouvelle_cuisine_2018-09-07_2 nouvelle_cuisine_2018-09-07_3

[ Posté le 7 septembre 2018 à 18:16 | pas de commentaire | ]

Jeudi, 6 septembre 2018

Jour 7

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-09-06_1 nouvelle_cuisine_2018-09-06_2

[ Posté le 6 septembre 2018 à 18:07 | pas de commentaire | ]

Mercredi, 5 septembre 2018

Jour 6

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-09-05_1 nouvelle_cuisine_2018-09-05_2

[ Posté le 5 septembre 2018 à 18:14 | pas de commentaire | ]

Mardi, 4 septembre 2018

Jour 5

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-09-04_1 nouvelle_cuisine_2018-09-04_2

[ Posté le 4 septembre 2018 à 17:42 | pas de commentaire | ]

Lundi, 3 septembre 2018

Jour 4

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-09-03_1 nouvelle_cuisine_2018-09-03_2

[ Posté le 3 septembre 2018 à 17:06 | pas de commentaire | ]

Vendredi, 31 août 2018

Jour 3

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-08-31_1 nouvelle_cuisine_2018-08-31_2

[ Posté le 31 août 2018 à 23:45 | pas de commentaire | ]

Jeudi, 30 août 2018

Jour 2

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-08-30

[ Posté le 30 août 2018 à 23:45 | pas de commentaire | ]

Mercredi, 29 août 2018

Jour 1

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-08-29_1 nouvelle_cuisine_2018-08-29_2

[ Posté le 29 août 2018 à 23:45 | pas de commentaire | ]

Samedi, 25 août 2018

Ancienne cuisine

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-08-25_1 nouvelle_cuisine_2018-08-25_2

[ Posté le 25 août 2018 à 23:45 | pas de commentaire | ]

Jeudi, 23 août 2018

Tas de meubles

Catégories : [ Cuisine/Nouvelle cuisine ]

nouvelle_cuisine_2018-08-23_1 nouvelle_cuisine_2018-08-23_2

[ Posté le 23 août 2018 à 23:45 | pas de commentaire | ]

Mercredi, 18 juillet 2018

Advertisement on the Web

Traduction: [ Google | Babelfish ]

Catégories : [ Râleries ]

The economic value of a Youtube video

The Youtube platform has been designed for the purpose of making all of its videos are available to anyone at anytime. Given its large amount of content, its suggestion algorithm and the ability to automatically play the next suggested video, a user of Youtube can consider that the stream of videos he wants to watch is limitless. This makes the stream a nonscarce resource i.e., a free good which, from an economics point of view has no value.

Asking users to pay for watching videos would indeed be a bad business move for Youtube, as many user would refuse to pay for watching content they currently get at no cost. Even the Youtube Red subscription, according to an Ars Technica article and related user comments, seems to be valuable not for it exclusive content, but for the extra features provided by the mobile player (download for offline viewing and background playing). Interestingly, these features are already provided by non-standard software, which is freely available. The exclusive content being apparently of little interest according to the article, the subscription seems to rather be “tax” on people who don't know they could legitimately get the same service for free.

Youtube being a business, it needs to get revenue, at least to support the cost of its large IT infrastructure. Since users are not charged any money, Youtube's revenue comes (exclusively?) from advertising (I guess that the collection of user behavioural data and their profiling is also sold to advertisers). Youtube's content therefore has value only insofar as it attracts potential consumers and exposes them to advertisement. The content itself does not matter to the platform, as long as users are drawn to it.

This is thus the foundation of the Web platforms and the Attention Economy, where the users' attention is the actual product being sold by the platforms. User profiling and Big Data is only a tool used for maximising the amount of attention being captured.

Advertisers are gamblers, you don't need to let them win

In 2004, Patrick Le Lay, then CEO of the French TV channel TF1 said “what we sell to Coca-Cola is available human brain-time.” One aspect of this is that TV channels sell advertisers the opportunity to reach the channel's viewers and attempt to influence them into buying the advertised products.

From the point of view of the advertisers, it is a gamble: they bet money (the cost of producing the TV commercial and the price paid to the TV channel to show the commercial) and hope to gain from it (when viewers buy their products because they have seen the commercial and have been influenced by it). This gamble is two-fold: the viewers may or may not see the commercial, and they may or may not be receptive to the influence techniques used in the commercial.

In social media, advertisement can be considered from the same angle: the website sells advertisers display space on its pages, and the advertisers gamble that users of the website will see the commercial and be influenced by it.

While everybody agrees that you don't have a moral obligation to buy a product after you have seen a commercial, it seems less obvious that you don't either have any moral obligation to view the commercial. For example, you could close your eyes and plug your ears to ignore the commercial; you could even use tools that automatically hide the commercial from you.

Putting the advertisers' money to uses I approve of

As I want to protect myself from the influence of advertisers, I normally use automated tools that prevent me from seeing advertisement. I record television programs and skip the commercials (automatically when the tool works as intended, otherwise manually), and I use ad blockers in my Web browser to prevent commercials from being displayed on my screen.

The difference between TV and the Web is that the TV channel gets paid for broadcasting the commercials and cannot control whether or not I skip them while advertisers on the Web pay the websites only if the commercial is being fetched i.e., only if I allow the Web browser under my control to display the commercial. In that case, my preferred solution would be to fetch the commercial as if it would be displayed, without actually displaying it. And since advertisers not only display commercials but also track the users across websites, it is necessary to isolate each commercial so that the tracking is not possible.

I would not normally care about websites not being paid by their advertisers, but in the particular case of Youtube, I use tools that allow me to watch content without having to view any commercial, meaning that the content's creators cannot hope to get payment from Youtube. I therefore dream of a tool that would allow me to channel advertisers' money to the content creators without having to view any commercial, thus letting the advertisers gamble, but strongly shifting the odds of this gamble in my favor. I consider this to be retribution for the advertisers' attempt at influencing me for their profit.

[ Posté le 18 juillet 2018 à 16:34 | pas de commentaire | ]

Mardi, 22 mai 2018

ANSI colors and Solarized

Traduction: [ Google | Babelfish ]

Catégories : [ Informatique ]

The Solarized color scheme redefines some of the standard basic ANSI colors, making some color combinations unsuitable for display. In particular, bright green, bright yellow, bright blue and bright cyan are tones of grey instead of the expected colors.

Also, some terminals interpret bold text as bright colors, turning e.g, bold green into a shade of grey instead of the expected green. At least in URxvt, setting intensityStyles: False will prevent bold text from being displayed in bright colors (but will still be displayed in a bold font).

When redefining color schemes for terminal applications using ANSI colors, these are possible combinations, using the usual ANSI color names. Note that bright colors are usually not available as background colors.

Solarized Light default background (ANSI white)

Normal: black red green yellow blue magenta cyan (light)grey

Bright: black/grey red green yellow blue magenta cyan white

ANSI (Light)Grey background

Normal: black red green yellow blue magenta cyan (light)grey

Bright: black/grey red green yellow blue magenta cyan white

Solarized Dark default background (ANSI bright black/grey)

Normal: black red green yellow blue magenta cyan (light)grey

Bright: black/grey red green yellow blue magenta cyan white

ANSI Black background

Normal: black red green yellow blue magenta cyan (light)grey

Bright: black/grey red green yellow blue magenta cyan white

[ Posté le 22 mai 2018 à 23:21 | pas de commentaire | ]

Dimanche, 18 février 2018

From How Far to Watch TV?

Traduction: [ Google | Babelfish ]

Catégories : [ Science ]

The distance l from the TV depends on the desired horizontal viewing angle a, the screen's diagonal d and the number N of pixels on a row. Additionally, we will assume the screen's aspect ratio r to be 16:9 and the human eye's smallest angle that can be seen e to be 31.5 arcseconds.

Let R be the ratio between the diagonal and the width of the screen:

R = √(1 + 1/r2)

We can then write a relationship between a, N and e:

tan(a / 2) = NR tan(e / 2)    (1)

From (1) we can deduce that for any given e, there is a maximum horizontal viewing angle amax above which pixels can theoretically be distinguished.

For N = 1920 (FullHD), amax = 19.1°. With a 4K screen, amax = 37.2°.

We can also write a relationship between horizontal viewing angle, screen diagonal and distance:

d / l = 2 R tan(a / 2)    (2)

The ideal value or a is a matter of debate, but THX defines a horizontal viewing angle of at least 36° (the screen viewed from the rear seat of a THX theatre), while SMPTE suggests 30°. A value of 20° is also mentioned.

With a 4K screen, amax = 37.2° and (2), we draw that the ideal distance is 1.30 times the screen's diagonal. For example:

  • 132 cm for a 40" screen
  • 165 cm for a 50" screen
  • 197 cm for a 60" screen

With a = 30°, the ideal screen distance is 1.63 times the screen's diagonal. For example:

  • 132 cm for a 32" screen
  • 166 cm for a 40" screen
  • 207 cm for a 50" screen
  • 248 cm for a 60" screen

With a FullHD screen and a compromise angle a = 20°, the ideal distance is 2.47 times the screen diagonal. For example:

  • 201 cm for a 32" screen
  • 251 cm for a 40" screen
  • 314 cm for a 50" screen

EDIT: The value of e is valid for a high contrast between two pixels. Most images do not have such a high contrast, and therefore a value of e = 1 arcminute is a reasonnable assumption in practice.

From this follows that for N = 1920 (FullHD), amax = 35.5° (1.36 times the screen diagonal). With a 4K screen, amax = 65.3° (0.68 times the screen diagonal). This also gives a reasonnable value for standard definition PAL TV with N = 1024, amax = 19.4° (2.55 times the screen diagonal).

That would allow for larger horizonat viewing angles, such as 45° (1.05 times the screen diagonal) or 60° (0.75 times the screen diagonal) when viewing a 4K screen. At such short distances one must however take into account the possible lack of comfort due to the physical closeness of smaller screens.

[ Posté le 18 février 2018 à 18:41 | pas de commentaire | ]

Samedi, 27 janvier 2018

Petits pains pour hamburgers

Catégories : [ Cuisine ]

Recette adaptée de la recette de pain de mie du blog Pique-assiette.

Ingrédients

  • 300 g farine
  • 3 g levure sèche
  • 1 c. café poudre à lever
  • 1 c. soupe sucre
  • 200 mL lait tiède
  • 5 g sel
  • 30 g beurre mou
  • huile
  • 9 cercles métalliques de 9 cm de diamètre, huilés à l'intérieur
  • plaque à four et papier cuisson
  • lèche-frite (profonde si possible)
  • pinceau

Préparation

  • Mélanger tous les ingrédients secs, ajouter le lait et mélanger.
  • Ajouter le beurre et pétrir 5 min
  • Laisser reposer 1 h
  • Former 9 boules (de 61 g chacune), les étirer en disque et placer chaque disque sur la plaque couverte du papier cuisson, au centre d'un cercle
  • Passer le desssus des disque à l'eau à l'aide du pinceau
  • Laisser reposer 2 h
  • Préchauffer le four à 200 °C. Une fois chaud, y placer sur le fond la lèche-frite avec 1 L d'eau bouillante
  • Cuire les petits pains pendant 15 min
  • Les petits pains se conservent plusieurs jours dans une boite hermétique

[ Posté le 27 janvier 2018 à 23:54 | pas de commentaire | ]