A home appliance is a device or machine that aids in domestic tasks, typically used for household functions such as cooking, cleaning, food preservation, and laundry. Home appliances can be categorized into two main types: 1. **Major Appliances (White Goods):** These are large, often stationary machines that perform significant household tasks.
A leaf blower is a gardening tool that uses a motor to generate a stream of air strong enough to move leaves, grass clippings, and other debris. It is commonly used to clear lawns, driveways, sidewalks, and gardens of fallen leaves and other lightweight organic matter. Leaf blowers can be powered by electricity, batteries, or gas and come in various designs, including handheld models, backpack types, and more powerful tow-behind versions.
The Lennox Merit Series air conditioners are a line of mid-range cooling systems offered by Lennox International, a well-known manufacturer of heating, ventilation, and air conditioning (HVAC) equipment. The Merit Series is designed to provide reliable and efficient cooling for residential applications, offering a balance between performance, comfort, and affordability.
Moffat is a company that specializes in manufacturing equipment for the food service industry. They produce a wide range of products, including ovens, cookers, and other kitchen appliances designed for commercial use. Moffat is known for its innovative designs and high-quality products that cater to the needs of restaurants, catering businesses, and other food service operations. The company has a strong presence in various international markets and is recognized for its commitment to reliability and efficiency in kitchen equipment.
"Mousetrap" can refer to different things depending on the context: 1. **Traditional Mousetrap**: A device used to catch mice, typically consisting of a spring-loaded bar that snaps down on the mouse when it triggers a baited lever. 2. **The Mousetrap (Play)**: A famous murder mystery play written by Agatha Christie, which premiered in 1952 and has since become the longest-running play in the world.
A small appliance is a portable or semi-portable device that is used to perform a specific task in the home, mostly related to cooking, food preparation, cleaning, or personal care. Unlike larger appliances like refrigerators, ovens, or washing machines, small appliances are typically designed to be lightweight and easy to use, often requiring little to no installation.
"Trouser press" can refer to a couple of different things: 1. **Clothing Care Appliance**: A trouser press is a device used to remove wrinkles from trousers (or pants) and to give them a crisp, pressed look. It typically consists of two heated plates that compress the fabric, allowing for a neat finish. Trouser presses are commonly found in hotels or can be used at home.
Narrative preaching is a style of preaching that focuses on storytelling as a central method for conveying biblical truths and messages. Instead of traditional forms of exposition that may rely heavily on doctrinal points or systematic theology, narrative preaching seeks to engage the congregation through compelling stories and relatable narratives. Here are some key characteristics of narrative preaching: 1. **Storytelling Focus**: Narrative preaching centers around storytelling, often using parables, biblical narratives, or contemporary stories to illustrate theological points.
"Bump and hole" is a term that can have different meanings depending on the context, but it is often associated with construction, civil engineering, or road maintenance, referring to an issue related to road surfaces. When roads develop bumps and holes (or potholes), it can lead to uneven driving surfaces that can be dangerous for vehicles and pedestrians. In a more technical sense, "bump" refers to elevated areas on a surface, while "hole" refers to depressions.
Homological connectivity is a concept from algebraic topology and homological algebra that relates to how well-connected a topological space or algebraic object is in terms of its homological properties. It can involve examining the relationships between different homology groups of a space. In a more specific context, homological connectivity can refer to the lowest dimension in which the homology groups of a space are nontrivial.
Sobolev mapping refers to the concept of mappings (or functions) between two spaces that belong to Sobolev spaces, which are a class of function spaces that consider both the functions and their weak derivatives.
A Postnikov system is a concept in algebraic topology, specifically in the study of homotopy theory. It is a type of construction used to analyze the homotopy type of a space by breaking it down into simpler pieces that reflect certain homotopical features. More formally, a Postnikov system consists of a tower of spaces and maps that encode the information of the homotopy groups of a space.
AFGL 2591, also known as IRAS 20126+4104, is an astronomical object located in the constellation Cassiopeia. It is a proto-planetary nebula, which is a phase in the evolution of a star similar to our Sun that is transitioning away from the asymptotic giant branch phase. This nebula is notable for exhibiting features typical of these types of objects, including a central star that is surrounded by expanding gas and dust.
The Excision Theorem is a fundamental result in algebraic topology, particularly in the context of singular homology. It addresses how the homology groups of a topological space can be affected by the removal of a "nice" subspace.
The Mayer–Vietoris sequence is a fundamental tool in algebraic topology, particularly in the study of singular homology and cohomology theories. It provides a way to compute the homology or cohomology of a topological space from that of simpler subspaces.
Polar homology is an algebraic concept that arises in the study of commutative algebra and algebraic geometry, particularly in the context of the theory of Gröbner bases and polynomial ideals. Polar homology can be thought of as a homology theory that is related to the structure of a polynomial ring, considering the "polar" aspects of a given polynomial or collection of polynomials.
Reduced homology is a variant of standard homology theory in algebraic topology, typically applied to topological spaces. It is particularly useful for spaces that are not simply connected or that have certain types of singularities, as it helps to simplify some aspects of their homological properties.
Adams filtration is a concept in homotopy theory, particularly in the study of stable homotopy groups of spheres and related areas. It is named after the mathematician Frank Adams, who developed this theory in the mid-20th century. Adams filtration is associated with the idea of understanding the stable homotopy category through a hierarchical structure that helps in studying and organizing the stable homotopy groups of spheres.
The Steenrod problem, named after mathematician Norman Steenrod, refers to a question in the field of algebraic topology concerning the properties and structure of cohomology operations. Specifically, it deals with the problem of determining which cohomology operations can be represented by "natural" cohomology operations on spaces, particularly focusing on the stable homotopy category.
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





