Technology and the built world

Short Tucano

The Short Tucano, also known as the Tucano T1, is a two-seat turboprop trainer built in Belfast for the RAF from a modified Embraer EMB-312, serving from 1989 to 2019.

Short-barreled rifle

A short-barreled rifle, also called a sawed-off rifle, is a rifle with a barrel under 16 inches, regulated under the National Firearms Act of 1934.

Short-channel effect

The short-channel effect (SCE) is the loss of gate control over a MOSFET's channel as gate length shrinks, causing threshold voltage roll-off, drain-induced barrier lowering, and higher leakage.

Short-circuit analysis

Short-circuit analysis is an electrical engineering method for calculating fault currents and voltages in a power system, used to size protective devices and verify equipment ratings.

Short-circuit breaking capacity

Short-circuit breaking capacity is the maximum fault current a circuit breaker or fuse can safely interrupt at its rated voltage, called interrupting capacity in North America.

Short-circuit evaluation, also called McCarthy evaluation, is an evaluation strategy for boolean expressions that skips the second operand of a logical AND or OR when the first already determines the result.

Short-circuit ratio

The short-circuit ratio (SCR) is a power system metric that quantifies the strength of an AC grid at a point of interconnection, with low values indicating a weak system.

Short-term load forecasting

Short-term load forecasting (STLF) predicts electrical power demand over horizons from an hour to a week or more, feeding unit commitment, dispatch, and market bidding.

Short-time Fourier transform

The short-time Fourier transform, also called the windowed Fourier transform, computes Fourier transforms of successive windowed signal segments to show frequency content changing over time.

Short-wave infrared imaging

Short-wave infrared (SWIR) imaging captures scenes using reflected light in the 1–3 µm band, revealing detail visible and thermal cameras miss, and seeing through fog, smoke, and silicon.

Shortwave radio

Shortwave radio, also known as world band or SW radio, transmits in the 3 to 30 MHz band; signals refract from the ionosphere, enabling cheap long-distance international broadcasting.

Shorya Awtar

Shorya Awtar is a University of Michigan mechanical engineer known for FlexDex, a low-cost mechanical laparoscopic surgical instrument, and elected to the National Academy of Engineering in 2023.

Shot (pellet)

Shot, traditionally known as lead shot, consists of small spherical pellets loaded many at a time into shotshells, sized from fine birdshot for birds to buckshot for deer.

Shot peening

Shot peening is a cold-working surface treatment that bombards metal parts with small spherical shot, inducing compressive stress that improves fatigue strength and stress corrosion resistance.

Shotcrete

Shotcrete, also called gunite or sprayed concrete, is concrete projected at high velocity from a nozzle, used for tunnel support, slope stabilization, and repair work.

Shotel

The shotel is an Ethiopian sword with a strongly curved, sickle-shaped blade, sharpened on the inside of the curve to stab around an opponent's shield.

Shotgun

A shotgun, also known as a scattergun or fowling piece, is a smooth-bore firearm that fires numerous small pellets or a single slug, dominating bird hunting and clay target sports.

Shotgun house

The shotgun house, also called a shotgun shack or shotgun cottage, is a narrow one-story house with rooms in a straight line and no hallway, closely associated with New Orleans.

Shotgun slug

A shotgun slug is a single projectile fired from a shotgun instead of shotshell pellets; most designs place the center of mass forward, flying like a shuttlecock.

Shoubra El-Kheima power plant

Shoubra El-Kheima power plant is a steam thermal power station in Shoubra El-Kheima, Qalyubia, Egypt, built between 1984 and 1988 with four 315 MW steam units.

Shougang

Shougang (首钢) is a Chinese state-owned iron and steel group headquartered in Beijing, founded in 1919, which moved its steelmaking to Caofeidian by 2010; its former Beijing plant hosted Big Air at the 2022 Winter Olympics.

Shoulder (road)

A shoulder, also called the hard shoulder or breakdown lane, is the strip beside a road's carriageway that supports the pavement and provides space for emergency stops, drainage, and pedestrians or bicyclists.

Shovel

A shovel is a hand tool with a broad, concave blade on a long handle, used for digging, lifting, and moving material such as soil, snow, gravel, or coal.

Shower

A shower is an arrangement for washing the body under a spray of water from a showerhead, either stand-alone or as an alternative to a bath.

Showmax

Showmax was a subscription video-on-demand streaming service for African markets, launched in 2015 by MultiChoice and, at its peak, Africa's largest streamer ahead of Netflix before its 2026 shutdown.

Shrapnel shell

The shrapnel shell is an artillery projectile of lead balls burst in flight by a time fuze, invented by Henry Shrapnel and adopted by Britain in 1803.

SHRDLU

SHRDLU was an early natural-language understanding program written by Terry Winograd at MIT between 1968 and 1970, answering English commands by moving blocks and pyramids in a simulated world.

Sep 21, 2026

Shree K. Nayar

Shree K. Nayar, also published as S. K. Nayar, is a computer scientist at Columbia University known for computer vision, computational imaging, and the Oren-Nayar reflectance model.

Shree Singaji Thermal Power Project

Shree Singaji Thermal Power Project, also called Shri Singaji Thermal Power Station, is a 2,520 MW coal-fired power station at Dongalia, Khandwa district, Madhya Pradesh, India.