Solar radiation closely matches a black body radiator at about 5,800 K. As it passes through the atmosphere, sunlight is attenuated by scattering and absorption; the more atmosphere through which it passes, the greater the attenuation.

The gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and sound at variable attenuation rates.

Solar radiation pressure is due to the Sun's radiation at closer distances, thus especially within the Solar System.

In discussing solar energy, the solar savings fraction or solar fraction (f) is the amount of energy provided by the solar technology divided by the total energy required.

Solar shingles, also called photovoltaic shingles, are solar panels designed to look like and function as conventional roofing materials, such as asphalt shingle or slate, while also producing electricity.

A solar thermal collector collects heat by absorbing sunlight.

A system that harnesses the thermal power of the sun to generate electricity.

Solar thermal technologies concentrate solar radiation on to a receiver, where it is converted into heat, which can then boil a liquid to produce steam to drive turbines.

A solar tracker is a device that orients a payload toward the Sun.

A solar tracking system tilts a solar panel throughout the day.

The solar updraft tower is a design concept for a renewable-energy power plant for generating electricity from low temperature solar heat.

Solar water heating is heating water by sunlight, using a solar thermal collector.

Photovoltaic windows convert sunlight to electricity for the building. In most cases, translucent photovoltaic cells are used.

Solar-powered pumps run on electricity generated by photovoltaic panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity- or diesel-run water pumps.

International Convention on Safety of Life at Sea adopted in 1974 by IMO.

The amendments concerning the way in which the subdivision and damage stability of dry cargo ships was to be calculated.

see Stockholm Agreement.

A solenoid is a type of electromagnet, the purpose of which is to generate a controlled magnetic field through a coil wound into a tightly packed helix.

A solenoid bolt is a type of electronic-mechanical locking mechanism.

A solenoid valve is an electromechanically-operated valve.