Zonal spherical functions are special functions that arise in the context of harmonic analysis on Riemannian symmetric spaces, particularly on spheres. They are closely related to the theory of representations of groups, particularly the orthogonal group, and play an important role in various areas such as mathematical physics, geometry, and number theory.
Active living is a lifestyle that encourages regular physical activity as a natural part of daily life. It involves making choices that integrate movement into daily routines, promoting overall health and well-being. Active living goes beyond structured exercise programs and encompasses a variety of activities that can be incorporated into everyday life.
Annie Jump Cannon (1863–1941) was an American astronomer known for her significant contributions to the field of stellar classification. She is best known for developing the Harvard Classification Scheme, which categorizes stars based on their temperatures and spectral types. This system uses letters (O, B, A, F, G, K, M) to classify stars, with O being the hottest and M being the coolest.
Mary Anna Draper refers to a historical figure who is best known for being the wife of the notable American explorer, activist, and naturalist, William Henry Draper. She is often recognized within the context of her contributions to various social and cultural initiatives during her lifetime in the 19th century.
Fabio Pacucci is an astrophysicist known for his work in the field of astronomy, particularly regarding the study of black holes and the early universe. He has been involved in research related to the formation of galaxies and the properties of cosmic structures. His contributions often involve theoretical studies and simulations that explore the behavior of various cosmic phenomena.
Ubuntu 22.04 build just worked, nice! Much feels much cleaner than the Micro Bit C setup:
sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi libstdc++-arm-none-eabi-newlib
git clone https://github.com/raspberrypi/pico-sdk
cd pico-sdk
git checkout 2e6142b15b8a75c1227dd3edbe839193b2bf9041
cd ..
git clone https://github.com/raspberrypi/pico-examples
cd pico-examples
git checkout a7ad17156bf60842ee55c8f86cd39e9cd7427c1d
cd ..
export PICO_SDK_PATH="$(pwd)/pico-sdk"
cd pico-exampes
mkdir build
cd build
# Board selection.
# https://www.raspberrypi.com/documentation/microcontrollers/c_sdk.html also says you can give wifi ID and password here for W.
cmake -DPICO_BOARD=pico_w ..
make -jThen we install the programs just like any other UF2 but plugging it in with BOOTSEL pressed and copying the UF2 over, e.g.:Note that there is a separate example for the W and non W LED, for non-W it is:
cp pico_w/blink/picow_blink.uf2 /media/$USER/RPI-RP2/cp blink/blink.uf2 /media/$USER/RPI-RP2/Also tested the UART over USB example:You can then see the UART messages with:
cp hello_world/usb/hello_usb.uf2 /media/$USER/RPI-RP2/screen /dev/ttyACM0 115200TODO understand the proper debug setup, and a flash setup that doesn't require us to plug out and replug the thing every two seconds. www.electronicshub.org/programming-raspberry-pi-pico-with-swd/ appears to describe it, with SWD to do both debug and flash. To do it, you seem need another board with GPIO, e.g. a Raspberry Pi, the laptop alone is not enough.
Kamaʻehuakanaloa Seamount, also known as the Gardner Pinnacles, is an underwater volcanic seamount located in the northwestern Hawaiian Islands. It rises from the ocean floor and is part of the Hawaiian-Emperor seamount chain, which is formed by volcanic activity related to the movement of the Pacific tectonic plate over a stationary hotspot in the Earth's mantle.
French Frigate Shoals is a group of small islands and coral reefs located in the northwestern part of the Hawaiian Islands, within the Papahānaumokuākea Marine National Monument. It is situated approximately 1,400 nautical miles northwest of Honolulu, Hawaii. The shoals cover a substantial area and include a number of islets and sandbars, with the largest being Tern Island.
The 3ω-method is a technique used in the field of thermal conductivity measurement, particularly for thin films and materials with small geometries. This method is based on the principles of frequency-domain thermography and utilizes a periodically heated sensor to measure thermal properties. ### Basic Principles: - **Sensor Design**: The technique typically involves a thin metallic line or film, which acts as both a heater and a thermometer. This line is usually deposited onto the material whose thermal properties are to be measured.
Transport accidental deaths refer to fatalities that occur as a result of accidents involving various forms of transportation. This includes a wide range of incidents, such as: 1. **Road Traffic Accidents**: Deaths from collisions between vehicles, pedestrians, cyclists, and other forms of transportation (e.g., buses, motorcycles, cars). 2. **Aviation Accidents**: Fatalities resulting from airline crashes or other aircraft-related incidents.
Thermal conductivity is a physical property of a material that measures its ability to conduct heat. It quantifies how well heat energy can transfer through a material when there is a temperature gradient. Materials with high thermal conductivity can quickly transfer heat, while those with low thermal conductivity are better insulators.
Transport tetany, often referred to as "transport tetany syndrome," is a condition characterized by muscle spasms, cramps, and stiffness that can occur in horses, particularly when they are transported over long distances. The condition is believed to be associated with changes in the horse's electrolyte balance, dehydration, and stress during transport.
Heat flux measurements of thermal insulation refer to the quantification of heat transfer through insulating materials under specific conditions. Heat flux is defined as the rate of heat energy transfer per unit area and is typically measured in watts per square meter (W/m²). Understanding heat flux is crucial for evaluating the performance of thermal insulation materials in various applications, such as buildings, industrial processes, and equipment.
Internally grooved copper tubes are specialized tubes used primarily in applications that require enhanced heat transfer and improved fluid flow characteristics. These tubes feature a series of longitudinal grooves or indentations on the inner surface, which increases the surface area available for heat exchange and helps to disrupt the layer of fluid adjacent to the tube wall. This disruption reduces thermal boundary layers, allowing for more efficient heat transfer. **Key features and benefits of internally grooved copper tubes include:** 1.
Multi-layer insulation (MLI) is a thermal insulation technology commonly used in spacecraft, satellites, and other applications where thermal control is critical, particularly in the vacuum of space. The primary purpose of MLI is to minimize heat transfer between different areas, especially to protect sensitive equipment from extreme temperatures. ### Structure: MLI consists of multiple layers of thin, shiny materials—usually metallic and non-metallic films—separated by small spacers.
Searle's bar method is an experimental technique used in materials science and engineering to measure the mechanical properties of materials, particularly the yield strength and elastic modulus of materials in a way that allows for precise control and measurement. It is named after physicist John Searle. The method involves placing a small, slender bar (the specimen) under tensile load, usually with two points of support at either end.
Thermal effusivity is a property of materials that describes their ability to conduct and store thermal energy. It is a measure of how well a material can exchange heat with its surroundings or with another material when they come into contact.
Adaptive dimensional search is a computational method used in the context of high-dimensional data analysis and optimization problems. It refers to techniques that adaptively adjust the method of searching through data or parameter spaces based on the characteristics of the data, the structure of the problem, or the performance of previous search iterations.
Extreme Helium Stars (EHe) are a type of star that is characterized by their unique atmospheric composition, primarily consisting of helium with very little or no hydrogen. These stars are typically found in the later stages of stellar evolution, particularly among hot, massive stars that have lost a significant amount of their outer hydrogen layer.
Helion, in chemistry, generally does not refer to a specific substance or compound. However, the term can be associated with "helium" (He), which is a chemical element with atomic number 2. Helium is a noble gas that is colorless, odorless, and tasteless, and it is the second lightest element in the periodic table.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. Web editor. You can also edit articles on the Web editor without installing anything locally.Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact