Libro de Visitas

Richardasymn

26 Aug 2024 - 03:53 pm

Johannes Kepler thought he sketched Mercury orbiting across the sun. What he actually captured has solved a solar mystery
kra7.at
German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a solar mystery.

Even though everything in the solar system revolves around the sun, scientists have yet to unlock many of the star’s secrets.
However, studying the variability of the sun over time, including the solar cycle, could answer some of the most longstanding questions about the fiery orb and how it changes.
https://at-kra2.at
kraken2trfqodidvlh4aa337cpzfrhdlfldhve5nf7njhumwr7instad.onion
Some of those questions revolve around solar activity in the 17th century, which was a pivotal time for studying the sun.

Astronomers observed sunspots with telescopes for the first time in 1610. At the same time, the sun was making an unusual transition into an extended period of weakened activity. And Kepler’s long disregarded sketches, overlooked because they were drawings rather than telescopic observations, could provide crucial historical insights.

A new study that recreates the circumstances during which Kepler made his drawings appeared on July 25 in The Astrophysical Journal Letters.

“Kepler contributed many historical benchmarks in astronomy and physics in the 17th century, leaving his legacy even in the space age,” said lead study author Hisashi Hayakawa, assistant professor at Nagoya University’s Institute for Space-Earth Environmental Research, in a statement.

“Here, we add to that by showing that Kepler’s sunspot records predate the existing telescopic sunspot records from 1610 by several years. His sunspot sketches serve as a testament to his scientific acumen and perseverance in the face of technological constraints.”

The sun’s tumultuous activity
The sun experiences an 11-year cycle of waxing and waning activity, known as the solar cycle. Currently, scientists believe that the sun is reaching or nearing solar maximum, the annual peak of its activity for the current solar cycle, called Solar Cycle 25.

Solar maximum is typically associated with an increase in the number of sunspots visible on the sun’s surface. These dark regions, some of which can reach the size of Earth or larger, are driven by the sun’s strong and constantly shifting magnetic fields.

Today, scientists track solar activity using data from ground and space-based observatories, magnetic maps of the solar surface, and ultraviolet observations of the sun’s outer atmosphere.

Jittgic

26 Aug 2024 - 01:39 pm

https://t.me/zerkalo1xslotscasino
casino online 1xslots
https://t.me/zerkalo1xslotscasino
1xslots играть онлайн
https://t.me/zerkalo1xslotscasino
1xslots официальный
https://t.me/zerkalo1xslotscasino
1xslots мобильная официальный
https://t.me/zerkalo1xslotscasino
казино 1 x slots мобильная версия

Williambanda

26 Aug 2024 - 10:49 am

Look at each of our sexy galleries displaying these babes covered in cum upon their faces, breasts, butts, and bellies. They can't find enough of that sticky stuff, plus they love sensation it all more than. Come see porno personal blog in which they enjoy every drop and only can't get enough of these cum on their skin.

Jeremybib

26 Aug 2024 - 09:41 am

Balanset-1A: Your Universal Tool for Balancing and Vibration Diagnostics

Description:




Order on Amazon


Balanset-1A is a two-channel device designed for dynamic balancing and vibration analysis. It is ideal for balancing a wide range of rotating equipment, such as centrifuges, turbines, fans, crushers, augers, pumps, compressors, and other equipment.

Features:

Vibrometer Mode:

Tachometer: Allows for accurate determination of rotor speed (RPM).
Phase: Determination of the phase angle of vibration signals for accurate analysis.
1x Vibration: Analyzes the primary harmonic of vibration, which helps detect imbalance.
FFT Spectrum: Provides detailed information about the vibration frequency spectrum, allowing for the detection of various issues.
Overall Vibration: Measurement and monitoring of overall vibration levels.
Measurement Log: Storage of measurement data for analysis.


Balancing Mode:

Single-Plane Balancing: Balancing rotors in one plane to reduce vibration.
Two-Plane Balancing: Dynamic balancing of rotors in two planes.
Polar Plot: Visualization of imbalance in the form of a polar plot for accurate weight placement.
Session Recovery: Restores the data of the previous session.
Tolerance Calculator (ISO 1940): Calculates tolerances for residual imbalance according to the international standard.
Grinding Wheel Balancing: Circular groove - used for balancing grinding wheels. In this case, 3 counterweights are used to eliminate the imbalance.


Graphs:

Overall Vibration Graphs: Visual representation of overall vibration.
1x Vibration Graphs: Graphically represents the primary component of vibration.
Harmonic Graphs: Shows the presence and impact of harmonic frequencies.
Spectral Graphs: Represents the vibration spectrum, allowing for the identification of various issues.


Additional Features:

Archive: Saves the results of balancing for future use.
Reports: Creation of detailed reports on balancing results.
Repeat Balancing: Allows for quick rebalancing if necessary.
Production Line Balancing: Optimized for balancing a large number of similar rotors.
Balanset-1A also offers flexibility in choosing between metric or imperial unit system, ensuring compatibility and convenience worldwide.
Price: €1751

Balanset-1A Package Includes:

Interface block
Two vibration sensors
Optical sensor (laser tachometer) with magnetic stand
Weighing scales
Software (Note: laptop not included, can be ordered separately)
Plastic transport case


Advantages of Balanset-1A:

High Efficiency and Quality: Balanset-1A provides high precision and reliability of balancing and vibration analysis results.
Ease of Use: The device is easy to use and requires no more than 2-3 hours to master, even for those who are not experts in vibration analysis.
Customization to Client Needs: Balanset-1A flexibly adjusts to your tasks, allowing you to solve various tasks related to balancing and alignment of different machines and mechanisms.
Affordable Price: Balanset-1A is significantly cheaper than market counterparts, making it an affordable solution for a wide range of users.
High Repeatability of Results: The device uses several "know-how" techniques that ensure high stability and accuracy of measurements, enabling the achievement of ensuring high precision and repeatability of measurements.


Conclusion

Balanset-1A is a professional solution for balancing and vibration analysis, which will help you achieve smooth and quiet operation of your equipment, extend its service life, and reduce repair costs.

Order on Amazon

Marywaree

26 Aug 2024 - 09:27 am

Прошу прощения, что вмешался... У меня похожая ситуация. Давайте обсудим.
незважаючи на те, що розцінки в нашому інтернет магазині змішувачів в Києві здатні вас здивувати своєю продуманістю, https://imags.com.ua/product/smesitel-dlja-rakoviny-jelektronnyj-s-termostatom-grohe-eurosmart-cosmopolitan-e-36332000/ ми організували на сайті систему додаткових накопичувальних знижок.

Gecnklskani

26 Aug 2024 - 04:35 am

onlayn zaymy so 100% odobreniya na kartu bez otkaza - spisok mikrozaymov kotorye mojno poluchit' pochti v 100% sluchaev. mfo s samym vysokim procentom odobreniya zayavok. - zaym 100 procentov na sayte credit24.pro
Tegs: финмолл - займы под 0,48% до 100000 рублей на 30-365 дней - персональный агент - микрозаймы в мфо финмолл - условия оформления и причины отказа. без посещения офиса! для граждан рф с 18 лет. - финмолл на сайте credit24.pro
fanmoney - займы под 0,8% до 30000 рублей на 3-120 дней - высокий показатель одобрений с любой ки - микрозаймы в мфо fanmoney - условия оформления и причины отказа. решение за 5 минут! для граждан рф с 20 лет. - fanmoney на сайте credit24.pro
контакт кредит - займы под 0,8% до 100000 рублей на 70-336 дней - микрозаймы в мфо контакт кредит - условия оформления и причины отказа. большой лимит! для граждан рф с 18 лет. - контакт кредит на сайте credit24.pro

zaymy bez zvonka - mikrozaymy bez zvonka s perevodom na kartu ili elektronnyy koshelek - zaym bez zvonka na sayte credit24.pro https://credit24.pro/zaymy/bez-zvonka/

Mandymic

26 Aug 2024 - 04:00 am

Бред какой то
свидетельство учебного учреждения с приложением старого образца до 1996-го стоит 15 000 р, диплом университета с приложением образца от 1996-го - 18 тыс. рублей, http://eurocodesguide.blogspot.com/2016/03/blog-post.html а корочка вуза с приложением новейшего типа от 2004 года - 24 000 рублей.

Michellewet

26 Aug 2024 - 03:45 am

Меня тоже волнует этот вопрос. Скажите мне пожалуйста - где я могу об этом прочитать?
несмотря на чувства Сэма и его готовность дать Джинджер положение в обществе и обеспечивать будущее, https://chandramatravels.com/11-sposobov-zanovo-izobresti-pin-up-rossiya/ Джинджер не может воспринимать Сэма иначе как потребителя и покидает него замуж непосредственно благодаря денег.

Eugeneecoge

26 Aug 2024 - 12:17 am

Tiny shards of plastic are increasingly infiltrating our brains, study says
[url=https://vk.com/video867628273_456239017]анальный секс зрелых[/url]
Human brain samples collected at autopsy in early 2024 contained more tiny shards of plastic than samples collected eight years prior, according to a preprint posted online in May. A preprint is a study which has not yet been peer-reviewed and published in a journal.

“The concentrations we saw in the brain tissue of normal individuals, who had an average age of around 45 or 50 years old, were 4,800 micrograms per gram, or 0.5% by weight,” said lead study author Matthew Campen, a regents’ professor of pharmaceutical sciences at the University of New Mexico in Albuquerque.
“Compared to autopsy brain samples from 2016, that’s about 50% higher,” Campen said. “That would mean that our brains today are 99.5% brain and the rest is plastic.”

That increase, however, only shows exposure and does not provide information about brain damage, said Phoebe Stapleton, an associate professor of pharmacology and toxicology at Rutgers University in Piscataway, New Jersey, who was not involved in the preprint.

“It is unclear if, in life, these particles are fluid, entering and leaving the brain, or if they collect in neurological tissues and promote disease,” she said in an email. “Further research is needed to understand how the particles may be interacting with the cells and if this has a toxicological consequence.”

The brain samples contained 7% to 30% more tiny shards of plastic than samples from the cadavers’ kidneys and liver, according to the preprint.

“Studies have found these plastics in the human heart, the great blood vessels, the lungs, the liver, the testes, the gastrointestinal tract and the placenta,” said pediatrician and biology professor Dr. Philip Landrigan, director of the Program for Global Public Health and the Common Good and the Global Observatory on Planetary Health at Boston College.

“It’s important not to scare the hell out of people, because the science in this space is still evolving, and nobody in the year 2024 is going to live without plastic,” said Landrigan, who was not involved with the preprint.

Brittanywaymn

26 Aug 2024 - 12:07 am

Какие слова... супер, великолепная идея
для большей безопасности в любой момент нужно проверять адрес ресурса, особенно в процессе восполнения депозита, [url=https://ckpiz.ru/slots/monster-lab/]champion[/url] и при малейших неточностях покидать игорное заведение и блокировать его.