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blog: nauka, internet, świat ^ © RG

12 kwietnia 201912 kwietnia 2019 by admin
cykl naukowy

Najnudniejsze z ciekawych zdjęć

Fotografia czarnej dziury z galaktyki M87 trafiła dokładnie w symulacje. Teleskop wielkości Ziemi dał podobny efekt co obliczenia kilku fizyków wielkości Homo sapiens. Nuda, można się rozejść.

Zanim rozejdziemy się w swoje strony, warto zajrzeć za kotarę – dlaczego jeden

ciąg dalszy
5 marca 20195 marca 2019 by admin
cykl internetowy

Co skrywają internetowe zbiórki na chorych?

Treść zbiórek internetowych, szczególnie w temacie chorób, to absolutny temat tabu w internecie. Nie można o tym pisać i już. Kto podejmuje temat, ten jest człowiekiem bez serca, który cyt. „nie powinien się interesować”. W cieniu tego milczenia rosną potwory,

ciąg dalszy
13 lutego 201915 lutego 2019 by admin
cykl naukowy

Recenzja studiów na kierunku biologia – Uniwersytet im. Adama Mickiewicza (UAM) / + o stanie polskich uniwersytetów

Kilka lat temu szukałem w internecie recenzji polskich uczelni i kierunków, by wesprzeć decyzję o wyborze studiów. Dziś, już po drugiej stronie lustra dorzucam swoją opinię na temat wydziału biologii Uniwersytetu im. Adama Mickiewicza.

ciąg dalszy
30 stycznia 201931 stycznia 2019 by admin
cykl naukowy

Dlaczego tak mało wiemy o tym, czy Homo sapiens może zajść w ciążę poza Ziemią?

Myślę, że istnieje istotny, humanitarny argument, z powodu którego powinniśmy żyć na wielu planetach. Musimy zabezpieczyć istnienie ludzkości w razie katastrofy.

Elon Musk w wywiadzie dla aeon.co – założyciel SpaceX, firmy która przygotowuje się do lotów na Marsa w następnej
ciąg dalszy
18 stycznia 201929 stycznia 2019 by admin
z archiwum

Dawniejsze kawałki warte uwagi

Publikowane na różnych stronach i w ramach różnych inicjatyw, wybrane materiały, które (na razie) przetrwały próbę czasu.

ciąg dalszy

Co jest grane

"odkrycia, wie pan, pojawiają się na zasadzie, że tak powiem, wdepnięć. to znaczy: człowiek wdeptuje w coś i nie może się z tego wycofać." S. Lem

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  • Kwiecień 2019 (1)
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Tematy

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Pozostałe projekty

najnowsze zdjęcia europejskiej agencji kosmicznej – od 2012 roku Polska jest jej ważną częścią

  • ᔕᗩTEᒪᒪITE ᔕEᒪᖴIE! 🛰 ⠀⠀⠀ Flashback to this image acquired by Sentinel-1A's onboard camera on 4 April 2014, just hours after it entered orbit on 3 April. It shows the top side of one of two deployed solar array wings as well as part of the radar antenna. ⠀⠀⠀ The solar wings and radar antenna opened together in a specific sequence that took around 10 hours to complete. As one of most critical stages in the life of the mission, it was choreographed by engineers on the ground and took place exactly as planned. ⠀⠀⠀ The sequence also allowed power from the wings to be available as soon as possible so that the satellite was independent. ⠀⠀⠀ 📸 @europeanspaceagency ⠀⠀⠀
  • 𝕎𝕙𝕒𝕥 𝕥𝕚𝕞𝕖 𝕚𝕤 𝕚𝕥? 🕕 ⠀⠀⠀ The @iss will host the most precise clocks ever to leave Earth. Accurate to a second in 300 million years the clocks will push the measurement of time to test the limits of the theory of relativity and our understanding of gravity. ⠀⠀⠀ Albert Einstein’s general theory of relativity predicted that gravity and speed influences time, the faster you travel the more time slows down, but also the more gravity pulling on you the more time slows down. ⠀⠀⠀ Einstein’s principle details how gravity interferes with time and space. One of its most interesting manifestations is time dilation due to gravity. This effect has been proven by comparing clocks at different altitudes such as on mountains, in valleys and in space. Clocks at higher altitude show time passes faster with respect to a clock on the Earth surface as there is less gravity from Earth the farther you are from our planet. ⠀⠀⠀ Flying at 400 km altitude on the Space Station, the Atomic Clock Ensemble in Space will make more precise measurements than ever before. ⠀⠀⠀ Go to our @instagram Story to learn more. ⠀⠀⠀ 📸 @europeanspaceagency / @nasa - Luca Parmitano ⠀⠀⠀
  • What happens when two supermassive black holes collide? ⚫️⚫️ ⠀⠀⠀ Combining the observing power of two of our future missions, Athena and LISA, would allow us to study these cosmic clashes and their mysterious aftermath for the first time. ⠀⠀⠀ Go to our @instagram Story to learn more. ⠀⠀⠀ 📹 @europeanspaceagency ⠀⠀⠀
  • 🅶🆁🅰🆅🅸🆃🆈 🆃🅾 🆃🅷🅴 🅼🅰🆇 ⠀⠀⠀ Our Large Diameter Centrifuge at the Agency’s technical heart in the Netherlands is seen running here at full speed. The 8-m diameter four-arm centrifuge gives researchers access to a range of hypergravity environments up to 20 times Earth’s gravity for weeks or months at a time. ⠀⠀⠀ The centrifuge rotates at up to 67 revs per minute, with its six gondolas placed at different points along its arms weighing in at 130 kg, and each capable of accommodating 80 kg of payload. Multiply those combined figures by 20 g and it adds up to an equivalent mass of 24 tonnes. ⠀⠀⠀ The LDC is popular with life and physical science teams, as well as commercial experiments. Internally, our teams use the centrifuge to see how spacecraft materials and components would respond to the violent accelerations involved in launching into space. ⠀⠀⠀ 📹 @europeanspaceagency / Life & Physical Science, Instrumentation and Life Support Laboratory, TEC-MMG Department ⠀⠀⠀
  • 𝘈𝘤𝘵𝘪𝘷𝘢𝘵𝘪𝘯𝘨 𝘴𝘱𝘪𝘥𝘦𝘳-𝘴𝘦𝘯𝘴𝘦 🕷 ⠀⠀⠀ In this image, a volunteer tries to get to the tennis ball as part of an experiment testing the influence of weightlessness on the perception of distance. He must first determine the distance of the ball from his person under normal gravity conditions by walking blindfolded to it. ⠀⠀⠀ For the microgravity portion of the experiment, researchers set up a sled along which subjects can pull themselves to the ball. In this scenario, the body is reclined and the arms are helping, giving the brain some more signals to work with to estimate the distance. ⠀⠀⠀ The experiment, developed by the Lyon Neuroscience Research Center in France, is taking place on this week's parabolic flight campaign aboard @airzerog ⠀⠀⠀ Go to our @instagram Story to learn more. ⠀⠀⠀ 📸 Novespace ⠀⠀⠀
  • #GravityRules🤘 ⠀⠀⠀ Black holes are among the most fascinating objects in the Universe. Enclosing huge amounts of matter in relatively small regions, these compact objects have enormous densities that give rise to some of the strongest gravitational fields in the cosmos, so strong that nothing can escape – not even light. ⠀⠀⠀ Go to our @instagram Story to learn more about this artist's impression. ⠀⠀⠀ 🖥 @europeanspaceagency ⠀⠀⠀
  • Hubble Time! 🌌⠀⠀⠀ ⠀⠀⠀ NGC 3384, visible in this image, has many of the features characteristic of so-called elliptical galaxies. Such galaxies glow diffusely, are rounded in shape, display few visible features, and rarely show signs of recent star formation. Instead, they are dominated by old, ageing, and red-hued stars. This stands in contrast to the sprightliness of spiral galaxies such as our home galaxy, the Milky Way, which possess significant populations of young, blue stars in spiral arms swirling around a bright core. ⠀⠀⠀ However, NGC 3384 also displays a hint of disc-like structure towards its centre, in the form of a central ‘bar’ of stars cutting through its centre. Many spirals also boast such a bar, the Milky Way included; galactic bars are thought to funnel material through and around a galaxy’s core, helping to maintain and fuel the activities and processes occurring there. ⠀⠀⠀ Go to our @instagram Story to learn more about this image⠀⠀⠀ ⠀⠀⠀ 📸 @europeanspaceagency/@hubbleesa & @NASA, B. Lehmer et al.; @creativecommons CC BY 4.0 ⠀⠀⠀
  • 𝕎𝕖'𝕝𝕝 𝕤𝕥𝕚𝕝𝕝 𝕓𝕖 𝕨𝕒𝕥𝕔𝕙𝕚𝕟𝕘 🛰 ⠀⠀⠀ From King's Landing to Winterfell and beyond the Wall, our @esa_earth satellites will be watching over Westeros even when the @gameofthrones is over. 🐺 🐉 🦁 🦌 🦑 ⠀⠀⠀ 1️⃣ King's Landing - Dubrovnik, Croatia 2️⃣ Dragonstone - Itzurun Beach, Zumaia, Spain 3️⃣ Highgarden - Castillo de Almodóvar del Río, Spain 4️⃣ Dorne's Sunspear - Alcázar of Seville, Spain 5️⃣ Castle Black - Magheramorne Quarry, Northern Ireland 6️⃣ Winterfell - Doune Castle, Scotland 7️⃣ Iron Island - Murlough Bay, Northern Ireland 8️⃣ Beyond the Wall - Vatnajökull, Iceland ⠀⠀⠀ 📸 contains modified @copernicus_eu Sentinel data, processed by @europeanspaceagency, CC BY-SA 3.0 IGO 8️⃣ @usgs / @europeanspaceagency ⠀⠀⠀
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