A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
the property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light.
for questions about claims based on organic food, food produced to certain standards.
for questions about claims related to the household (e.g. household appliances).
the act or process of removing dirt and other unwanted build-up from an object with the goal of restoring it to its original state.
ESP (Extrasensory perception) involves reception of information not gained through the recognized physical senses but sensed with the mind.
An unusual apparent anomaly in the sky that is not readily identifiable to the observer as any known object.
Continued physical or psychological dependence on a substance or behavior despite negative or even life-threatening physical or societal consequences. Can also refer to any of the many and varied trea…
Study of ancient history history and pre-history based on interpretation of artifacts and found physical remains.
A sanitation fixture used primarily for the disposal of human excrement and urine.
codified systems and traditions of combat practices, which are practiced for a variety of reasons: as self-defense, military and law enforcement applications; as competition, physical…
A long chain biological polymer that acts as a store of genetic information using the sequence of 4 bases held inside a double spiral made from a sugar-containing backbone.
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
A fluid which delivers substances to various cells within an organism's body. The most common fucntion are the delivery of nutrients and the transportation of waste products. Composition varies wide…
A leading US manufacturer of consumer electronics including computers, tablets and mobile-phones.
The study of the fossilised remains of animals and plants, their relationships to each other and to living animals and plants.
the study of people's efficiency in their working environment.
for questions about claims related to the history of science.
In traditional belief and fiction, a ghost is the soul or spirit of a dead person or animal that can appear, in visible form or other manifestation, to the living.
A term for fuels derived from the remains of plants or animals by geological processes over long time periods. A blanket term covering coal, oil, and natural gas.
A range of human diseases where the ability to regulate blood-sugar is compromised leading, if untreated, to a range of long term chronic harms. In type 1 diabetes insulin production is compromised; i…