A bat detector is a specialized device used to detect and analyze the ultrasonic vocalizations of bats. Bats communicate and navigate using echolocation, emitting high-frequency sounds that are often above the range of human hearing (typically 20 kHz to 200 kHz). Bat detectors convert these high-frequency sounds into lower frequencies that can be heard and analyzed by humans.

Electronic pest control refers to methods and devices designed to manage and mitigate pest populations using electronic technology. These devices often aim to deter, repel, or even kill pests without the use of traditional chemical pesticides. Here are some common types and features of electronic pest control: 1. **Ultrasonic Repellers**: These devices emit high-frequency sound waves that are inaudible to humans but are intended to irritate or discomfort pests like rodents and insects, driving them away from the area.

"SonicEnergy" could refer to a variety of concepts depending on the context, as there isn't a widely recognized definition. It might be related to sound energy in physics, where sound is a form of mechanical wave energy that travels through a medium (like air, water, or solids). In other contexts, SonicEnergy could also be a brand name, a concept in energy production, or a term used in specific industries such as music or technology.

There are only two pre-requisites to using Haskell in 2020. You have to be an idealist. And you have to be a genius:

Java is good.

Its boilerplate requirement is a pain, but the design is otherwise very clean.

But its ecosystem sucks.

The development process is rather closed, the issue tracker obscure.

And above all, Google LLC v. Oracle America, Inc. killed everybody's trust in it once and for all. Thanks Oracle.

This ultimately determines which Java is used by a bunch of tools.

TODO is there a way to update it sanely in Ubuntu: askubuntu.com/questions/175514/how-to-set-java-home-for-java to always match the default java executable?

Castor wax, also known as castor oil wax or hydrogenated castor oil, is a solid or semi-solid substance derived from castor oil through a hydrogenation process. It is a type of fatty acid wax that is often used in various industrial and cosmetic applications due to its unique properties. ### Properties and Characteristics: - **Chemical Structure**: Castor wax consists primarily of ricinoleic acid, a fatty acid found in castor oil.

Astatine is a chemical element with the symbol At and atomic number 85. It is a member of the halogens, a group of elements in Group 17 of the periodic table, which also includes fluorine, chlorine, bromine, and iodine. Astatine is the rarest naturally occurring halogen and is highly radioactive, with no stable isotopes. Its most stable isotope, astatine-210, has a half-life of about 8.1 hours.

Ultrasonic consolidation is an advanced manufacturing process used primarily in the field of additive manufacturing (also known as 3D printing) and materials joining. It involves the use of ultrasonic vibrations to consolidate layers of materials, typically metal or plastic, allowing them to bond together without melting or extensive heat input. This process operates at lower temperatures compared to traditional welding and machining processes.

An ultrasonic flow meter is a device used to measure the flow rate of liquids or gases by utilizing ultrasonic waves. These instruments operate on the principle of ultrasonic sound waves, which are high-frequency sound waves typically outside the range of human hearing (above 20 kHz). There are two main types of ultrasonic flow meters: 1. **Transit Time Ultrasonic Flow Meters**: These measure the time it takes for an ultrasonic pulse to travel upstream and downstream through the fluid.

Ultrasonic soldering is a specialized soldering technique that uses high-frequency ultrasonic waves to enhance the soldering process. This method employs ultrasonic vibrations, typically in the range of 20 kHz to 70 kHz, which are transmitted through a soldering tool or directly applied to the solder joint during the soldering process.

The term "Petrovsky lacuna" refers to a specific problem in the field of functional analysis, particularly in the study of partial differential equations and the theory of distributions. It is associated with the work of the mathematician V. I. Petrovsky, who investigated the properties of certain classes of solutions to partial differential equations, especially those relating to the existence and behavior of weak solutions.

A vapor cone, also known as shock collar or vapor cloud, is a phenomenon that occurs when an aircraft, typically traveling at supersonic speeds (faster than the speed of sound), displaces air in such a way that moisture in the air condenses, creating a visible cloud. This effect is primarily seen around the aircraft's wings and fuselage due to the rapid changes in pressure and temperature as the aircraft breaks the sound barrier.

In anatomy, a "chiasm" refers to a crossing or intersection of nerve fibers, most commonly associated with the optic chiasm. The optic chiasm is a critical structure in the brain where the optic nerves from the eyes partially cross over.

Tenotomy is a surgical procedure that involves the cut or division of a tendon. This procedure is typically performed to relieve tension in the tendon, to correct deformities, or to improve the function of a joint. Tenotomies can be used in various medical contexts, particularly in orthopedic and sports medicine, to address conditions like tendonitis, contractures, or to facilitate a more effective range of motion in joints affected by tight or abnormal tendons.

The Beeswax Wreck is a notable shipwreck located off the coast of Cape Hatteras in North Carolina, USA. It is believed to be the remains of a 19th-century wooden sailing vessel that was transporting beeswax, a valuable commodity at the time, hence its name. The wreck is of interest to marine archaeologists and historians due to its potential to provide insights into maritime trade and shipping practices during that period.

Chinese wax, often referred to as "Chinese wax scale," is a natural product derived from the secretions of certain scale insects, specifically those belonging to the genus **Ceroplastes**. The wax is produced by these insects as a protective covering for themselves, and it appears as a white or yellowish substance.

Mustache wax is a grooming product specifically designed to style and shape mustaches. It typically comes in a small tin or jar and is made from a blend of natural waxes, such as beeswax and lanolin, along with oils and sometimes fragrances. The primary purpose of mustache wax is to provide hold, allowing the user to mold the mustache into various styles—like curls, twists, or other shapes—while helping to tame unruly hairs.