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328 results for “equinoxefr”
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But, as we now know, the #JulianCalendar's mean year is about 11 minutes 15 seconds longer than the #TropicalYear, and by the 4th century AD, the dates of the #solstices and #equinoxes had drifted from their official dates by several days.
In the 16th century, #Pope Gregory XIII used his authority as #PontifexMaximus to reform the calendar again, because that is something #popes can do.
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But, as we now know, the #JulianCalendar's mean year is about 11 minutes 15 seconds longer than the #TropicalYear, and by the 4th century AD, the dates of the #solstices and #equinoxes had drifted from their official dates by several days.
In the 16th century, #Pope Gregory XIII used his authority as #PontifexMaximus to reform the calendar again, because that is something #popes can do.
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CW: CW: slight rant about astro scicomm
“tilted relative to the Sun” is so vacuous as to be meaningless. Everything is “tilted relative to the Sun.” Astrocomm must improve a lot, especially when it comes to explaining equinoxes and solstices. Happens every time, every year.
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@Gila I've a similar attitude to all #holidays that are #culturally or #socially sanctioned.
#Solstices and #Equinoxes I give a hoot about: they are definitive physical manifestations of our little blue and green ball flying round the fireball sun.
They mark the seasons; planting, growing, harvesting, hibernating.
Random picture:
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@Gila I've a similar attitude to all #holidays that are #culturally or #socially sanctioned.
#Solstices and #Equinoxes I give a hoot about: they are definitive physical manifestations of our little blue and green ball flying round the fireball sun.
They mark the seasons; planting, growing, harvesting, hibernating.
Random picture:
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@Gila I've a similar attitude to all #holidays that are #culturally or #socially sanctioned.
#Solstices and #Equinoxes I give a hoot about: they are definitive physical manifestations of our little blue and green ball flying round the fireball sun.
They mark the seasons; planting, growing, harvesting, hibernating.
Random picture:
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I had one of those “Why didn’t that ever occur to me before?” moments. The time between the #Equinoxes is not symmetrical. It’s about 186 days between the #March and #September equinoxes and about 179 days from September to March. This is because the speed of the #Earth in its #orbit varies as it’s #elliptical rather than circular. I never bothered to count the days and yet it’s “obvious” when you look at the calendar. This gives an eccentricity of the orbit to be around 0.015.
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🔴#Théâtres et lieux de #Culture occupés, le mouvement s'amplifie.
Graslin à #Nantes et Equinoxe à #Chateauroux s'ajoutent aux occupations de l'Odéon et la Colline à #Paris, du TNS à #Strasbourg et des Espaces Pluriels à #Pau.
#CultureEnDanger #CultureEnColère
#ThéâtresOccupés🐦🔗: https://twitter.com/PeupleRevolte/status/1369711991540117508
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Sneaky peaky of my piece for EQUINOX: A GOLDEN WIND ZINE! Pre-orders open now! 🍂
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https://equinoxfanzine.bigcartel.com
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https://equinoxzine.tumblr.com
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#art #artwork #mastoart #creativetoots #drawing #sketches #sketchbook #sketch #illustration #digitalart #digitalpainting #fanart #jjba #fanzine #jojosbizarreadventure #ventoaureo #giorno #jjbapart5 -
"Je pense avoir toujours fantasmé sur l’extrême nord et l’extrême sud. La nuit noire et le jour plein. Une affinité pour ce qui se forme et se détruit, l’équinoxe, les points de bascule et les choses tapies derrière. Ultima Thulé, colonnes d’Hercule, le trois fois troisième royaume des contes russes."
[#luvan - 2019] -
Le dividende universe passe de 10.04 à 10.07 #Junes par jour. petite augmentation à chaque équinoxe.
#monnaielibre #ĝ1 -
Thoughts on 1st May
Today, 1st May, Beltane (Bealtaine in Irish), is an old Celtic festival that marks the mid-point between the Spring Equinox and the Summer Solstice. It’s one of the so-called Cross-Quarter Days that lie exactly halfway between the equinoxes and solstices. These ancient festivals have been moved so that they take place earlier in the modern calendar than the astronomical events that represent their origin: the halfway point between the Spring Equinox and Summer Solstice is actually next week. Anyway, “May Day”, Lá Bealtaine in Irish, is today – the name Bealtaine applies to the whole month of May.
In Ireland the Bank Holiday assocliated with Bealtaine is on Monday 4th May, so another long weekend beckons.
Workwise, after today we will have completed the penultimate teaching week of Semester 2 so after Monday’s Bank Holiday we will have just four official days of teaching left, before a Study Week and the start of examinations. Yesterday I correctedthe last of my Computational Physics class tests so I am up to date with the continuous assessment and feedback of both my modules. I now have a week before the Computational Physics projects are submitted, and another week before the exam period starts.On Wednesday last we had project presentations for about half of the final year class; the other half do their things next Wednesday.
Now, I have a particle physics lecture to give – the antepenultimate one of the semester – after which I’ll be launching myself into the long weekend.
Lá Bealtaine shona daoibh go leir!
#Bealtaine #ireland #MayDay #MaynoothUniversity -
Thoughts on 1st May
Today, 1st May, Beltane (Bealtaine in Irish), is an old Celtic festival that marks the mid-point between the Spring Equinox and the Summer Solstice. It’s one of the so-called Cross-Quarter Days that lie exactly halfway between the equinoxes and solstices. These ancient festivals have been moved so that they take place earlier in the modern calendar than the astronomical events that represent their origin: the halfway point between the Spring Equinox and Summer Solstice is actually next week. Anyway, “May Day”, Lá Bealtaine in Irish, is today – the name Bealtaine applies to the whole month of May.
In Ireland the Bank Holiday assocliated with Bealtaine is on Monday 4th May, so another long weekend beckons.
Workwise, after today we will have completed the penultimate teaching week of Semester 2 so after Monday’s Bank Holiday we will have just four official days of teaching left, before a Study Week and the start of examinations. Yesterday I correctedthe last of my Computational Physics class tests so I am up to date with the continuous assessment and feedback of both my modules. I now have a week before the Computational Physics projects are submitted, and another week before the exam period starts.On Wednesday last we had project presentations for about half of the final year class; the other half do their things next Wednesday.
Now, I have a particle physics lecture to give – the antepenultimate one of the semester – after which I’ll be launching myself into the long weekend.
Lá Bealtaine shona daoibh go leir!
#Bealtaine #ireland #MayDay #MaynoothUniversity -
Découvrez les plus beaux sentiers de randonnée en Europe au printemps 🌸🏞️, où la nature est en fleur et les paysages sont à couper le souffle ! Partez à l'aventure et explorez les côtes portugaises, les Alpes slovènes et bien plus encore 🏃♀️
#Europe #Voyage #Randonnée #Printemps #SentiersDeRandonnée #Aventure #Nature #Découverte
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Sunset visit to Stonehenge Aoteaora, a modern clonehenge with several solar alignments . The obelisk top aligns to the south celestial pole and cats a shadow that marks our an an analemma on the ground. Outlying stones match the horizon in height when viewed from the centre, and mark the solstices and equinoxes. #Astronomy #Clonehenge #Aotearoa #StoneCircles @Icarosity
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Puisque les #nuitsdelalecture battent leur plein du 21 au 25 janvier, et que moi aussi, « longtemps je me suis couchée de bonne heure », je vous propose de nous retrouver ce matin dès 10h30 à la @librairiefauve de Créon autour d’un café.
Je vous propose des lectures d’extraits de mon roman « Équinoxe », où, entre ville et campagne, vous ferez la connaissance du corsaire breton Charles Cornic, pour une page d’histoire bordelaise méconnue… -
Puisque les #nuitsdelalecture battent leur plein du 21 au 25 janvier, et que moi aussi, « longtemps je me suis couchée de bonne heure », je vous propose de nous retrouver ce matin dès 10h30 à la @librairiefauve de Créon autour d’un café.
Je vous propose des lectures d’extraits de mon roman « Équinoxe », où, entre ville et campagne, vous ferez la connaissance du corsaire breton Charles Cornic, pour une page d’histoire bordelaise méconnue… -
Puisque les #nuitsdelalecture battent leur plein du 21 au 25 janvier, et que moi aussi, « longtemps je me suis couchée de bonne heure », je vous propose de nous retrouver ce matin dès 10h30 à la @librairiefauve de Créon autour d’un café.
Je vous propose des lectures d’extraits de mon roman « Équinoxe », où, entre ville et campagne, vous ferez la connaissance du corsaire breton Charles Cornic, pour une page d’histoire bordelaise méconnue… -
Je suis en train de vous préparer un post de type "Notes saisonnières : automne". Je crois que cette année je vais m'essayer à ce rythme un peu particulier. On verra si je m'y tiens ou si c'est juste une fois pour décharger un peu de la saison qui vient de passer.
Ce sera un post un peu fleuve qui couvre la période entre l'équinoxe et le solstice, avec des centaines de liens à picorer.
Pour cette fois j'avais besoin de ça. Je finis ça demain et d'ici là, bonne nuit ! #noteshebdo #encemoment -
avec le Collectif #BiPanNancy
Samedi 11 octobre à 18h30
Table-ronde sur l’#archivage #Queer
Organisée par le, avec Mélusine, archiviste chargée de valorisation numérique, Stéphanie, autrice de « Quelle #bisexualité radicale ? » et Bi’Cause.
Au local d’Équinoxe (Centre LGBTQIA+), 47 rue des Ponts, #nancy -
avec le Collectif #BiPanNancy
Samedi 11 octobre à 18h30
Table-ronde sur l’#archivage #Queer
Organisée par le, avec Mélusine, archiviste chargée de valorisation numérique, Stéphanie, autrice de « Quelle #bisexualité radicale ? » et Bi’Cause.
Au local d’Équinoxe (Centre LGBTQIA+), 47 rue des Ponts, #nancy -
avec le Collectif #BiPanNancy
Samedi 11 octobre à 18h30
Table-ronde sur l’#archivage #Queer
Organisée par le, avec Mélusine, archiviste chargée de valorisation numérique, Stéphanie, autrice de « Quelle #bisexualité radicale ? » et Bi’Cause.
Au local d’Équinoxe (Centre LGBTQIA+), 47 rue des Ponts, #nancy -
Back to Teaching and Coping with GenAI
Summer is well and truly over: it’s a chilly day in Maynooth; the Autumnal Equinox takes place tomorrow; and tomorrow I return to teaching at Maynooth University. So begins my antepenultimate academic year as a university teacher.
I’ve often remarked how the academic year at Maynooth is largely defined by the astronomical phenomena of the equinoxes and solstices. This year demonstrates this perfectly: Semester 1 lectures for undergraduates begin tomorrow (22nd September), the day of the Autumnal equinox; they end on Friday 19th December with the Winter Solstice on 21st. The half-term study break coincides with Samhain, a cross-quarter day. It’s all refreshingly pagan.
This time last year, having been away on sabbatical the year before, I was preparing to teach two new modules. I have those two again this year. The timetable for my Engineering Mathematics (EE206 Differential Equations and Transform Methods) module has not changed, so my first lectures on that (a double session) are not until Tuesday. I’m also doing MP469 Differential Equations and Complex Analysis for 4th Year Mathematical Physics students again, but the lecture times for that have changed. That is because, as a consequence of the merger of the Departments of Theoretical Physics and Experimental Physics to form a single Department of Physics, times have been coordinated as far as possible to ensure that Physics students can have flexibility in their choice of theoretical or experimental-based modules. The Engineering Mathematics module has not changed because the times for those lectures are such as to fit with the needs of the Department of Engineering, rather than Physics.
The upshot of all this is that my first lecture of the new term is for MP469, tomorrow afternoon at 2pm and my second is also MP469, at 11am on Tuesday. This means that I have three hours of lectures on Tuesdays this term, but at least that makes it possible to have a day without teaching (Wednesday).
You will notice that both the modules I am teaching this term are mathematical in nature. I have been concerned about the integrity of the coursework element of these modules in the light of improvements in Generative AI. Only a couple of years ago GenAI could not solve the sort of problems I set for homework, but now it generally can – especially for EE206. I don’t altogether object to people applying artificial intelligence to solve mathematical problems, but the issue is that it does make mistakes. Moreover, instead of saying “sorry I can’t solve that problem” it will generally present a superficially plausible but incorrect solution. Although students will probably use GenAI for problem-solving, I think it is important that they learn to do such problems themselves, otherwise they won’t know whether the solution coughed up by the algorithm is correct or not. That way lies disaster.
The only way to learn mathematics is by doing it. If students get GenAI to do the mathematics for them, then they won’t learn it. In the past we have given marks for coursework (usually 20% of the module mark) mainly to encourage students to do them. Students who don’t bother to do these exercises generally do badly in the final exam (80%).
For these reasons I am moving the assessment from weekly homework sheets – which could be tackled with AI – to supervised in-class tests for which students can use notes on paper, but not laptops or phones, just like they would in the final examination. I will of course give examples for the students to have a go at themselves, and I will give feedback on their attempts, but they will not contribute to the module score. Another advantage of this approach is that students won’t have to do so much work against deadlines outside of class.
Anyway, that’s the approach I am going to try. I’d be interested to hear what others are doing to deal with GenAI. The Comments Box is at your disposal.
#DepartmentOfPhysics #GenAI #generativeAI #mathematics #MaynoothUniversity
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Examinations in May
In the Irish language, the month of May is called Bealtaine after the old Celtic festival that marks the mid-point between the Spring Equinox and the Summer Solstice. May Day is Lá Bealtaine, one of the so-called Cross-Quarter Days that lie halfway between the equinoxes and solstices. The Bank Holiday associated with this day is not May 1st, as it is throughout Europe, but the first Monday of May, which this year means today. I’m therefore officially off work, though I have quite a few things to do so will be working from home for most of today.
This Bank Holiday offers a bit of a breather before the end of teaching term (Friday May 9th) and the start of the Examination period (Friday May 16th). There are just four more days of teaching, and I have just a couple more lectures to do. In a normal week I would have a Particle Physics tutorial this Monday afternoon, but instead I have offered to do one next Monday (12th) to go through the last assignment which is due in on Friday. The examination for Particle Physics is on 27th May, which is one of the last of the year; this is a final-year module so for many students it will be their last examination at Maynooth.
My Computational Physics students are working on their projects which are due in on Friday 9th; that gives me about a week to grade them before the examinations start. The Computational Physics written examination is on Monday May 19th and if all goes to plan I will have the projects marked before I embark on the examination scripts. Instead of formal teaching sessions, the computing lab, together with demonstrator assistance, is at the disposal of the students for their projects during this time. I anticipate plenty of last-minute acitivity in Thursday’s session!
Anyway, on Friday I have to give a Departmental Colloquium as well as my final Particle Physics lecture. Then, to mark the end of teaching, I’m going to the National Concert Hall to listen to some music. The next morning I’ll have to get up very early for the Darkness Into Light, which involves a 5km walk ending at sunrise.
After next week attention will turn to examinations. For me that’s not only in Maynooth. I haven’t mentiond it on here before but I have agreed to act as External Examiner for undergraduate Physics programmes at Imperial College, London, for the next few years. The meeting of the Examination Board there is not until July, which is long after ours in Maynooth so there will be no clash, but I have been doing some work (vetting papers, etc) alongside my own work. The examinations at Imperial take place roughly alongside ours, but there are so many more students there than at Maynooth that a longer time is needed for grading the scripts so the end of the process is much later.
In the past, I’ve been External Examiner in a number of UK universities. The last was Cambridge, in fact, where my term ended in 2017 while I was still working in Cardiff. I haven’t done any since moving to Ireland: being Head of Department, especially during lockdown, did not allow me the time. My term as External at Imperial will last until I retire, so this is the last such job I’ll be doing.
There’s quite a lot of work involved with being an External Examiner, but I always find it interesting to see how other institutions run their programmes. As well as providing feedback and, if necessary, advice to the Institution I always pick up interesting ideas from them too. Imperial’s Physics programmes are much broader than ours, so there’s a huge difference in scale, but I’m sure there will be things to learn. I mean in general terms, of course. All the details are confidential, for obvious reasons.
#Examinations #ExternalExaminer #ImperialCollege #MaynoothUniversity
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Examinations in May
In the Irish language, the month of May is called Bealtaine after the old Celtic festival that marks the mid-point between the Spring Equinox and the Summer Solstice. May Day is Lá Bealtaine, one of the so-called Cross-Quarter Days that lie halfway between the equinoxes and solstices. The Bank Holiday associated with this day is not May 1st, as it is throughout Europe, but the first Monday of May, which this year means today. I’m therefore officially off work, though I have quite a few things to do so will be working from home for most of today.
This Bank Holiday offers a bit of a breather before the end of teaching term (Friday May 9th) and the start of the Examination period (Friday May 16th). There are just four more days of teaching, and I have just a couple more lectures to do. In a normal week I would have a Particle Physics tutorial this Monday afternoon, but instead I have offered to do one next Monday (12th) to go through the last assignment which is due in on Friday. The examination for Particle Physics is on 27th May, which is one of the last of the year; this is a final-year module so for many students it will be their last examination at Maynooth.
My Computational Physics students are working on their projects which are due in on Friday 9th; that gives me about a week to grade them before the examinations start. The Computational Physics written examination is on Monday May 19th and if all goes to plan I will have the projects marked before I embark on the examination scripts. Instead of formal teaching sessions, the computing lab, together with demonstrator assistance, is at the disposal of the students for their projects during this time. I anticipate plenty of last-minute acitivity in Thursday’s session!
Anyway, on Friday I have to give a Departmental Colloquium as well as my final Particle Physics lecture. Then, to mark the end of teaching, I’m going to the National Concert Hall to listen to some music. The next morning I’ll have to get up very early for the Darkness Into Light, which involves a 5km walk ending at sunrise.
After next week attention will turn to examinations. For me that’s not only in Maynooth. I haven’t mentiond it on here before but I have agreed to act as External Examiner for undergraduate Physics programmes at Imperial College, London, for the next few years. The meeting of the Examination Board there is not until July, which is long after ours in Maynooth so there will be no clash, but I have been doing some work (vetting papers, etc) alongside my own work. The examinations at Imperial take place roughly alongside ours, but there are so many more students there than at Maynooth that a longer time is needed for grading the scripts so the end of the process is much later.
In the past, I’ve been External Examiner in a number of UK universities. The last was Cambridge, in fact, where my term ended in 2017 while I was still working in Cardiff. I haven’t done any since moving to Ireland: being Head of Department, especially during lockdown, did not allow me the time. My term as External at Imperial will last until I retire, so this is the last such job I’ll be doing.
There’s quite a lot of work involved with being an External Examiner, but I always find it interesting to see how other institutions run their programmes. As well as providing feedback and, if necessary, advice to the Institution I always pick up interesting ideas from them too. Imperial’s Physics programmes are much broader than ours, so there’s a huge difference in scale, but I’m sure there will be things to learn. I mean in general terms, of course. All the details are confidential, for obvious reasons.
#Examinations #ExternalExaminer #ImperialCollege #MaynoothUniversity
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CW: Untethered musing
What is a new year? In the scope of the week, this year, it's a fairly unassuming Wednesday. Just like any other day. But is it? Surely it is astronomically significant? Well, kind of. I mean, relative to Sol, our life-sustaining sun-star, we are roughly in a similar position to where we were 365 days ago. But then again, the same can be said for yesterday, and the day before that. Not even the seasons "line up" as they were taught to us anymore. However, I'm not sure they ever did. We can have solstices and equinoxes until the cows come home, but they're all relative, aren't they? Long-est or short-est of the current cycle around Sol - well, our best approximation. Axial tilt anomalies aside, Sol itself, just a dull footnote in the backwaters of the Milky Way galaxy, is moving relative to the galaxy, and the galaxy relative to the cluster and the cluster relative to the known universe (and probably the unknown too). So it's not like we can say: "see here? in this spot we were, one year ago", because it's all relative. However, similar approximate location and time of start point of vaguely accurate "cycle" around Sol, so why not set some arbitrary goal for your own infinitesimally small existence doesn't sound anywhere near as appealing or marketable as "New Year, New You".
#musings
#newyear
#NewYearsEve2024 -
CW: Untethered musing
What is a new year? In the scope of the week, this year, it's a fairly unassuming Wednesday. Just like any other day. But is it? Surely it is astronomically significant? Well, kind of. I mean, relative to Sol, our life-sustaining sun-star, we are roughly in a similar position to where we were 365 days ago. But then again, the same can be said for yesterday, and the day before that. Not even the seasons "line up" as they were taught to us anymore. However, I'm not sure they ever did. We can have solstices and equinoxes until the cows come home, but they're all relative, aren't they? Long-est or short-est of the current cycle around Sol - well, our best approximation. Axial tilt anomalies aside, Sol itself, just a dull footnote in the backwaters of the Milky Way galaxy, is moving relative to the galaxy, and the galaxy relative to the cluster and the cluster relative to the known universe (and probably the unknown too). So it's not like we can say: "see here? in this spot we were, one year ago", because it's all relative. However, similar approximate location and time of start point of vaguely accurate "cycle" around Sol, so why not set some arbitrary goal for your own infinitesimally small existence doesn't sound anywhere near as appealing or marketable as "New Year, New You".
#musings
#newyear
#NewYearsEve2024 -
CW: Untethered musing
What is a new year? In the scope of the week, this year, it's a fairly unassuming Wednesday. Just like any other day. But is it? Surely it is astronomically significant? Well, kind of. I mean, relative to Sol, our life-sustaining sun-star, we are roughly in a similar position to where we were 365 days ago. But then again, the same can be said for yesterday, and the day before that. Not even the seasons "line up" as they were taught to us anymore. However, I'm not sure they ever did. We can have solstices and equinoxes until the cows come home, but they're all relative, aren't they? Long-est or short-est of the current cycle around Sol - well, our best approximation. Axial tilt anomalies aside, Sol itself, just a dull footnote in the backwaters of the Milky Way galaxy, is moving relative to the galaxy, and the galaxy relative to the cluster and the cluster relative to the known universe (and probably the unknown too). So it's not like we can say: "see here? in this spot we were, one year ago", because it's all relative. However, similar approximate location and time of start point of vaguely accurate "cycle" around Sol, so why not set some arbitrary goal for your own infinitesimally small existence doesn't sound anywhere near as appealing or marketable as "New Year, New You".
#musings
#newyear
#NewYearsEve2024 -
Dziś w historii sztuki w komiksie mam dla Was coś nieoczywistego. Trzeba nie tylko uważnie się przyjrzeć, ale i (raczej) wiedzieć, czego szukać. Przyznam, że sam bym nie zauważył, gdybym nie natknął się na tę informację w internecie (nie pamięta, niestety, gdzie). Ale natknąłem się, odnotowałem, sprawdziłem i zrobiłem zestawienie.
Po lewej: Willem Claeszoon Heda, "Martwa natura z ostrygami, kieliszkiem, cytryną i srebrną miską", 1634.
Po prawej: "Valerian", t. 9: "Les Héros de l'Équinoxe", 1978, scen. Pierre Christian, rys. i tusz Jean-Claude Mézières.
P.S. Album ukazał się w Polsce jako "Bohaterowie równonocy" w 2015 roku w trzecim tomie wydania serii od Taurus Media.
#komiks #komiksy #comics #historiasztukiwkomiksie #valerian #pierrechristian #jeanclaudemezieres
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Dziś w historii sztuki w komiksie mam dla Was coś nieoczywistego. Trzeba nie tylko uważnie się przyjrzeć, ale i (raczej) wiedzieć, czego szukać. Przyznam, że sam bym nie zauważył, gdybym nie natknął się na tę informację w internecie (nie pamięta, niestety, gdzie). Ale natknąłem się, odnotowałem, sprawdziłem i zrobiłem zestawienie.
Po lewej: Willem Claeszoon Heda, "Martwa natura z ostrygami, kieliszkiem, cytryną i srebrną miską", 1634.
Po prawej: "Valerian", t. 9: "Les Héros de l'Équinoxe", 1978, scen. Pierre Christian, rys. i tusz Jean-Claude Mézières.
P.S. Album ukazał się w Polsce jako "Bohaterowie równonocy" w 2015 roku w trzecim tomie wydania serii od Taurus Media.
#komiks #komiksy #comics #historiasztukiwkomiksie #valerian #pierrechristian #jeanclaudemezieres