Watch the 'Christmas Tree Cluster' twinkle in X-rays (video)

Watch the 'Christmas Tree Cluster' twinkle in X-rays (video) | Hubble Telescope gifts us a dazzling starry 'snow globe' | Camera Christmas gift guide 2023: Capture the cosmos Created for znamenski.spacecom@blogger.com |  Web Version December 22, 2023 CONNECT WITH SPACE.COM       Something amazing every day. SIGN UP ⋅   WEBSITE   The Launchpad Watch the 'Christmas Tree Cluster' twinkle in X-rays (video) (NASA/CXC/SAO; Optical: T.A. Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A. Wolpa (NOIRLab/NSF/AURA); Infrared: NASA/NSF/IPAC/CalTech/Univ. of Massachusetts; Image Processing: NASA/CXC/SAO/L. Frattare & J.Major) This month, space feels a bit more festive. That could be because of a new composite image of the Christmas Tree Cluster that shows star formation in a merry way, complete with green pine needles and twinkling lights. This image, in fact, arrives to our computer screens just after we laid eyes on the James Webb Space Telescope's cosmic Christmas ornament portrait and shortly before the Hubble Space Telescope released its version of a Christmas "globe." Full Story: Space (12/21)  Hubble Telescope gifts us a dazzling starry 'snow globe' (ESA/Hubble, NASA, ESA, Yumi Choi (NSF's NOIRLab), Karoline Gilbert (STScI), Julianne Dalcanton (Center for Computational Astrophysics/Flatiron Inst., UWashington)) 'Tis the season for twinkling lights, both in your neighborhood and deep in space. To celebrate the festive season, NASA has published this composite image, which resembles something of a wonderland of Christmas lights - or perhaps a colorful snow globe. The image's subject is the billion-star-containing UGC 8091, an irregular dwarf galaxy located within the constellation Virgo, some 7 million light-years from Earth. Full Story: Space (12/21)  Space Deal of the Day Camera Christmas gift guide 2023: Capture the cosmos (Getty, Nikon, Sigma, Peak Design, Benro, Sandisk, LaCie, COOWOO, BioLite, K&F Concept, Anker, JJC) You'll find an affordable sub-$20 option, which is great if you're looking for a cheap stocking filler or you're buying a Secret Santa gift and don't have much knowledge about cameras and photography. Then there's a sub-$100 price tier for great quality gifts that don't break the bank, and finally, a $100+ category for if you really want to splurge. Full Story: Space (12/14)  Star projector Christmas gift guide 2023: Bring space home (Getty Images, Pococo, Future) Some star projectors are more toys or night lights than science instruments, suitable for children with an interest in space to help soothe them at bedtime. But other star projectors are great tools for adults, acting either as a relaxation tool with in-built Bluetooth to synchronize with music, podcasts or audiobooks, or a powerful scientific device that can turn your living room into a home planetarium. Full Story: Space (12/13)  Skywatching The Ursids peak tonight, the last meteor shower of 2023 (Chris Vaughan/Starry Night) The annual December meteor shower, the Ursids, peaks on Saturday (Dec. 23), offering skywatchers willing to brave the cold the opportunity to see meteors in the form of bright streaks of light and the occasional fireball. Full Story: Space (12/22)  Spaceflight Private moon lander's SpaceX launch delayed a month (Intuitive Machines) Intuitive Machines, which had hoped to launch its robotic IM-1 mission no earlier than Jan. 12, 2024, will now wait an extra month to launch with SpaceX. The new launch window begins no earlier than mid-February, Intuitive representatives said in a release on Tuesday (Dec. 19). Once the launch window opens, it will last several days. Full Story: Space (12/21)  Science & Astronomy Can stars form around black holes? (X-ray: NASA/CXC/University of Alberta/A.Bahramian et al.; Illustration: NASA/CXC/M.Weiss) In the 1930s, when physicist and engineer Karl Jansky pointed his radio antenna towards the center of our galaxy, he detected a continual source of radio waves. After some analysis, scientists realized these radio waves were being emitted by something vastly further from our planet than the sun -- but oddly enough, they were comparable in energy to the waves we do receive from the sun. With this information, they began to suspect something truly powerful must be lurking in the center of the Milky Way. Full Story: Space (12/21)  SpaceX Launch of Axiom's 3rd private astronaut mission delayed (Axiom Space) SpaceX's next private astronaut launch has been delayed until mid-January. The company had been planning to launch Axiom Space's Ax-3 mission to the International Space Station on Jan. 9. However, the timeline has slipped by a little over a week, to Jan. 17, NASA announced today (Dec. 21). The delay is "due to recent unfavorable weather conditions and changes in SpaceX's launch manifest," agency officials said. Full Story: Space (12/21)  Technology Chinese startup LandSpace to begin rocket landing tests (LandSpace) Chinese launch startup Landspace appears ready to test launching and landing rockets. The company launched its third Zhuque-2 methane-fueled rocket on Dec. 8, successfully sending two satellites into orbit. It also revealed plans following the launch for a large stainless steel Zhuque-3 reusable rocket that it aims to launch for orbit for the first time in 2025. Full Story: Space (12/21)  Search for Life Finding life on Enceladus might be easier than we thought (NASA) New research suggests there are locations on the surface of Saturn's moon, Enceladus, where spacecraft could land to scoop up pristine traces of the key ingredients for life. It's believed that these biosignatures come from subsurface oceans within the world's icy shell. Full Story: Space (12/20)  Telescopes & Binoculars Telescopes Christmas gift guide 2023: Best for all budgets (Celestron, Unistellar, Future) This guide aims to ensure that the telescope you choose meets the requirements of the astronomer in your life, with the instrument not being too difficult or simple to use while ensuring that the buyer -- that's you -- doesn't have to break the bank in order to tick a telescope off your list. Full Story: Space (12/20)  Binoculars Christmas gift guide 2023 (Leica, Celestron, Future) Buying astronomical equipment as a gift for a loved one can be a tricky task if you don't know much about the equipment. Binoculars are a lower-cost alternative to telescopes that can provide hours of enjoyment while stargazing, but how can you tell the good models from the bad ones? Full Story: Space (12/21)  Entertainment Adam Sandler ventures into the cosmos in 'Spaceman' (Netflix) Netflix just offered up a curious sneak peek at director Johan Renck's ("Chernobyl") off-planet odyssey, which arrives March 1, 2024 starring Sandler, Carey Mulligan and Paul Dano. Full Story: Space (12/21)    Sign Up  |    Update Profile  |    Unsubscribe Privacy Policy  |    Cookies Policy  |    Terms and Conditions CONTACT US: FEEDBACK  |    ADVERTISE Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036

Biodynamic Gardening Guide: Definition, Key Principles, Best Practices, Benefits, Tools and Preparations

Biodynamic gardening offers a profound approach to cultivating the earth, resonating with ancient wisdom and modern ecological consciousness. It transcends conventional organic practices by fostering a holistic understanding of the garden as a living organism, intertwined with the rhythms of nature and the cosmos. Embracing this philosophy nurtures vibrant, nutrient-rich produce while promoting a deeper connection to the natural world.

Key Principles of Biodynamic Gardening

1. Understanding the Farm as a Living Organism:

• Biodynamics views the farm or garden as an interconnected entity, where soil, plants, animals, and cosmic forces collaborate in a delicate dance of life.
• Nurturing this interconnectedness is paramount, ensuring a synergistic balance that promotes vitality and resilience.

2. Strengthening the Soil:

• Biodynamic preparations, meticulously crafted from natural substances, act as catalysts for soil health.
• These preparations invigorate microbial life, enhance fertility, and promote a thriving soil ecosystem—the foundation for robust plant growth.

3. Aligning with Cosmic Rhythms:

• Biodynamics recognizes the profound influence of celestial rhythms on plant growth.
• Planting, cultivating, and harvesting in harmony with lunar cycles, planetary alignments, and seasonal transitions optimizes plant vitality and yields.

4. Embracing Biodiversity:

• Biodynamic gardens embrace diversity, fostering a tapestry of plant species, insect life, and beneficial organisms.
• This biodiversity fosters resilience, thwarts pests, and creates a harmonious ecosystem where each element contributes to the garden's overall health.

Essential Practices for Biodynamic Gardening Success

1. Composting: The Heart of Soil Fertility

• Biodynamic composting is a meticulous art, transforming organic matter into a nutrient-rich elixir for the soil.
• Specific preparations, such as BD500 and BD502, enhance compost vitality, accelerating decomposition and enriching the soil's microbial life.

2. Planting by the Moon and Stars:

• Biodynamic planting calendars guide gardeners to align sowing and harvesting with auspicious cosmic rhythms.
• This practice is believed to optimize plant growth, nutrient uptake, and flavor development.

3. Fostering Biodiversity:

• Intercropping, companion planting, and cultivating a diversity of species create a vibrant ecosystem that benefits all inhabitants.
• Beneficial insects thrive, pests are kept in check, and the garden becomes a resilient, self-sustaining microcosm.

4. Honoring Animals and Their Role:

• Biodynamic farms often integrate livestock, recognizing their crucial role in nutrient cycling, soil fertility, and overall farm health.
• Animals contribute manure for compost, grazing for weed control, and their unique energy to the farm's ecosystem.

The Rewards of Biodynamic Gardening

1. Nutrient-Rich, Flavorful Produce:

• Biodynamic practices yield produce that is not only free of chemicals but also brimming with vitality and flavor.
• The heightened nutrient density and vibrant energy of biodynamically grown food are often palpable to those who consume it.

2. Deeper Connection to Nature:

• Biodynamic gardening cultivates a profound sense of connection to the natural world, fostering respect for the delicate balance of life forces that sustain us.
• This intimate relationship with nature enriches both the gardener and the garden, fostering a sense of stewardship and gratitude.

3. A Path to Regeneration:

• Biodynamic principles offer a roadmap for healing the Earth and restoring vitality to our food systems.
• By nourishing the soil, honoring biodiversity, and embracing cosmic rhythms, we can participate in a movement that nurtures life and promotes a thriving planet for generations to come.

Delving Deeper into the Cosmos: Advanced Biodynamic Techniques

We've established the core principles and practices of biodynamic gardening, but the journey doesn't end there. For those seeking to truly connect with the cosmic rhythms and unlock the full potential of their gardens, several advanced techniques await exploration.

Honing Your Sensitivity to Cosmic Forces

1. Observing the Subtle: Planetary Influences

Each planet in our solar system exerts a unique influence on plant growth. For example:

• Mars: Associated with vitality and action, Mars days are ideal for seeding fast-growing plants like lettuce and radishes.
• Venus: Ruling over love and beauty, Venus days favor planting flowering ornamentals and nurturing delicate fruits.
• Saturn: Known for structure and boundaries, Saturn days are well-suited for tasks like transplanting seedlings and pruning woody plants.

By keeping a keen eye on planetary movements and aligning your gardening activities accordingly, you can tap into these subtle cosmic forces and potentially enhance your yields and harvest quality.

2. Harnessing the Moon's Cycles: The Biodynamic Sowing Calendar

The moon's waxing and waning phases have long been recognized as potent influences on plant growth. Biodynamic sowing calendars, meticulously crafted to correspond with these lunar cycles, offer detailed guidance for optimal planting times.

• Root Days: During the waning moon, focus on planting root vegetables like carrots, potatoes, and beets. The downward pull of the moon's gravity is believed to encourage vigorous root development.
• Leaf Days: Under the waxing moon, prioritize leafy greens like lettuce, spinach, and kale. The moon's upward pull is thought to stimulate lush foliage growth.
• Flower Days: The days surrounding the full moon are auspicious for sowing flowering plants, fruit trees, and herbs. The moon's heightened energy is believed to promote vibrant blooms and bountiful harvests.

3. Rhythms of the Zodiac: A Deeper Dive

For the truly dedicated biodynamic gardener, delving into the specific influences of the zodiacal constellations can add another layer of complexity and potential benefit. Each constellation is associated with different plant parts and qualities, offering further guidance for aligning your gardening activities with cosmic rhythms.

For instance, planting tomatoes under the sign of Leo (associated with fire and fruit) or sowing leafy greens under Libra (linked to air and balance) might be seen as particularly auspicious choices. However, mastering this level of astrological integration requires dedication and ongoing study.

Tools and Preparations for the Advanced Biodynamic Gardener

1. The Seven Preparations: Catalysts for Life

Biodynamic preparations are potent natural concoctions crafted from specific plant and animal materials. These preparations, numbered BD500 through BD507, each address different aspects of soil health and plant vitality.

• BD500 (Horn manure): Enhances soil fertility and humus formation.
• BD501 (Horn silica): Strengthens plant stems and resistance to disease.
• BD502 (Cow manure): Stimulates composting and microbial activity.
• BD503 (Chamomile): Promotes flower formation and fruit quality.
• BD504 (Nettle): Enhances leaf growth and chlorophyll production.
• BD505 (Oak bark): Strengthens root systems and resistance to pests.
• BD506 (Dandelion): Balances soil moisture and nutrient uptake.

Mastering the application and timing of these preparations takes time and experience, but their potential to invigorate your garden and elevate your biodynamic practice is significant.

2. The Dowsing Rod: Intuition Meets Practicality

The dowsing rod, a simple Y-shaped tool, can be used to intuitively locate underground water sources, ley lines (energetic lines in the Earth), and even compost piles with optimal activity. While its scientific validity is debated, many biodynamic gardeners swear by the dowsing rod as a valuable tool for connecting with the subtle energies of the land.

Conclusion: A Lifelong Journey with Biodynamic Gardening

Biodynamic gardening is not merely a set of techniques; it's a lifelong journey of observation, experimentation, and deepening connection with the natural world. As you delve deeper into its principles and practices, you'll witness firsthand the vibrant life force coursing through your garden, responding to your care and resonating with the rhythms of the cosmos.

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Seminars Digest, Vol 59, Issue 6

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Today's Topics:

1. Friday 22.12.2023 (Serge Krashakov)

----------------------------------------------------------------------

Message: 1
Date: Thu, 21 Dec 2023 21:45:23 +0300
From: Serge Krashakov <sakr@itp.ac.ru>
To: staff@itp.ac.ru, students@itp.ac.ru, seminars@itp.ac.ru
Subject: [Landau ITP Seminars] Friday 22.12.2023
Message-ID: <7b67512d-45be-4d37-91fb-4591067ef6af@itp.ac.ru>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Уважаемые коллеги!

На заседании Ученого совета в пятницу 22 декабря в 11:30 будет заслушан
доклад:

_П.Д. Григорьев_, Т.И. Могилюк
*Развитие теории магнитосопротивления в слоистых квазидвумерных металлах*

Развита теория поперечного магнитосопротивления в слоистых
квазидвумерных металлах. По формуле Кубо-Стреды в одноэлектронном
приближении рассчитана холловская внутрислоевой проводимость в магнитном
поле, перпендикулярном проводящим слоям. Получены аналитические
выражения для амплитуд и фаз магнитных квантовых осцилляций (МКО) и
разностных (так называемых медленных) осцилляций (РО) и применены для
анализа их поведения в зависимости от нескольких параметров:
напряженности магнитного поля, интеграла межслоевого переноса и ширины
уровней Ландау. Также находим тензор магнитосопротивления вдоль слоев,
поскольку именно магнитосопротивление чаще всего измеряется в
экспериментах. Также исследуется поведение межслоевого
магнитосопротивления Rzz
в слоистых квазидвумерных металлах в углах Ямаджи, то есть углах наклона
магнитного поля, при которых наблюдается минимум межслоевой
проводимости. Рассматриваются случаи лоренцевой формы уровней Ландау и
формы, соответствующей самосогласованному борновскому приближению.
Теоретически предсказана зависимость Rzz∝B3/2в сильном поле, которая
согласуется с экспериментальными данными.

ID и пароль онлайн-трансляций в Zoom те же, что и для предыдущих
трансляций семинаров и докладов на Ученом совете:
https://zoom.us/j/96899364518?pwd=MzBsR2lYT0lYL2x2b1oyNU9LeWlWUT09
Meeting ID: 968 9936 4518
Пароль: 250319
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