Macedonio Melloni (1798–1854) was an Italian physicist known for his significant contributions to the field of thermodynamics and optics. He is particularly recognized for his work on infrared radiation and for being one of the pioneers in studying the properties of thermal radiation. Melloni conducted experiments that demonstrated the existence of infrared rays, using a device that he designed to measure thermal radiation and its effects.
The Schur product theorem is a result in linear algebra related to matrices and their positive semi-definiteness. It establishes a relationship between the Schur product (or Hadamard product) of two matrices and the positive semi-definiteness of those matrices.
Gabrio Piola was an influential Italian mathematician and engineer known for his contributions to the fields of mechanics and continuum mechanics. He is particularly noted for the development of the Piola-Kirchhoff stress measures in continuum mechanics, which are used to describe the stress state in deformable bodies. The Piola-Kirchhoff stress tensors are important in the analysis of materials and structures under deformation and are particularly useful in finite element analysis.
Galileo Ferraris (1847-1897) was an Italian physicist and engineer, best known for his contributions to the development of alternating current (AC) electrical systems and the induction motor. He made significant advancements in the understanding of electromagnetism and electromagnetic fields. Ferraris is particularly noted for inventing the induction motor in 1885, which operates on the principles of electromagnetic induction.
Giovanni Caselli was an Italian inventor and engineer best known for his contributions to the early development of the telegraph and photography. He is most notably recognized for inventing the "pantelegraph," a device that could transmit written documents over long distances using telegraph lines, effectively allowing for the remote copying of images and text. Caselli's work in telecommunications was significant in the 19th century, as it helped lay the groundwork for future advancements in communication technology.
Giuseppe Zamboni was an Italian physicist and inventor, best known for his work in electrochemistry, particularly the development of the Zamboni pile—a type of voltaic cell or battery. He is credited with creating a simple and efficient way to generate electrical energy using layers of metal and electrolyte solutions. The Zamboni pile operates by utilizing chemical reactions to produce electric currents, and it is notable for its ease of construction and use.
Luigi Palmieri (1807–1896) was an Italian scientist and inventor best known for his contributions to the field of volcanology and for his work related to geophysics. He is particularly noted for his studies on volcanic activity and the development of instruments to measure temperature and gases emitted from volcanoes. One of his significant inventions was the "piranometer," an instrument designed for measuring temperature variations, which helped in the analysis of geological phenomena.
Alan Tower Waterman (1925–2015) was an influential figure in the field of science and technology policy. He served as the director of the National Science Foundation (NSF) from 1970 to 1972. Waterman was known for his efforts to promote scientific research and education in the United States and for advocating policies that strengthened the national commitment to scientific advancement. In recognition of his contributions, the Alan T. Waterman Award was established by the NSF in 1975.
Albert Crewe is recognized for his significant contributions to the field of physics, particularly in the area of electron microscopy. He played a pivotal role in the development of the scanning transmission electron microscope (STEM), which has advanced the ability to visualize materials at the atomic level. Crewe’s work has had substantial implications for materials science, biology, and nanotechnology.
Albert Edward Caswell is not a widely recognized public figure, celebrity, or historical person, as far as common knowledge suggests. However, it is possible that he could refer to a specific individual in a niche field, an artist, or someone noted in a local context.
Hermann Ebert may refer to several individuals, but one notable person is Hermann Ebert (1890–1958), a German physicist known for his work in mathematics and physics.
Temistocle Calzecchi-Onesti was an Italian engineer and inventor, best known for his contributions to the field of aerial photography and for his work with early photographic equipment. He was particularly notable for developing techniques and technologies that helped in the use of photography in various applications, including military and scientific fields. He is sometimes associated with the development of photographic plates and innovations in camera design during the late 19th and early 20th centuries.
Alexander William Bickerton (1816–1892) was a notable English geologist, chemist, and physicist. He made significant contributions to the understanding of geological processes and the nature of materials found within the Earth. Bickerton is particularly known for his work on the mineralogy and classification of rocks, as well as his research in the fields of chemical analysis and crystallography.
Eduard Hagenbach-Bischoff (1850-1904) was a Swiss painter known for his landscapes and still lifes. His works are characterized by their vibrant colors and a strong sense of light, often capturing the beauty of nature and the emotions tied to it. He was part of the art movements of the late 19th century, and his paintings reflect a blend of realism and impressionism.
Jean-Daniel Colladon (1802–1893) was a Swiss physicist and engineer best known for his work in the field of acoustics and fluid dynamics. He is particularly noted for his contributions to the understanding of the propagation of sound in water and the phenomenon of sonic waves. One of Colladon’s notable experiments involved demonstrating the speed of sound in water, which he calculated using a submerged bell.
Majority rule is a governance principle or decision-making process whereby the option or choice that receives more than half (more than 50%) of the votes or support is selected as the outcome. This concept is often used in democratic systems, elections, and various collective decision-making scenarios. The idea is that the preferences of the majority of voters or group members should determine the decisions or policies that are implemented.
Ludwik Gorzkowski does not appear to be a widely recognized public figure as of my last knowledge update in October 2023. It's possible that he may be a private individual or a figure who is not widely documented in mainstream media or literature.
Charles Édouard Guillaume was a prominent French physicist known for his significant contributions to the field of metrology, particularly in the study of physical constants and the development of precision measuring instruments. He was born on February 15, 1861, and passed away on June 13, 1938. Guillaume is particularly renowned for his work on the determination of temperature scales and the alloy known as Invar, which has a very low coefficient of thermal expansion.
The 2000s was a pivotal decade for robotics, marked by significant advancements in technology, increased interest in automation, and the integration of robotics into various industries. Here are some key highlights from that era: ### 1. **Advancements in Technology:** - **Microcontrollers and Sensors:** The development of cheaper, more powerful microcontrollers and a wide range of sensors (e.g., accelerometers, gyroscopes, cameras) made it easier to build sophisticated robotic systems.
"2000s software" refers to the various software applications, operating systems, and development platforms that were popular or significant during the 2000s decade, which spans from the year 2000 to 2009. This period saw rapid advancements in technology and significant shifts in how software was developed and used.

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!
We have two killer features:
  1. 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-calculus
    Articles 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/derivative
  2. 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.
    Figure 5. . 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.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
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