
The 3DBenchy is a 3D computer model specifically designed for testing the accuracy and capabilities of 3D printers. The 3DBenchy is described by its creator, Creative Tools, as "the jolly 3D printing torture-test" and was released in April 2015, with a multi-part, multi-color model released in July 2015. Due to its status as a common benchmark, it is believed to be the world's most 3D printed object.

The Alaskan Way Seawall is a seawall which runs for approximately 7,166 feet (2,184 m) along the Elliott Bay waterfront southwest of downtown Seattle from Bay Street to S. Washington Street. The seawall is being rebuilt in the 2010s as part of a waterfront redevelopment megaproject estimated to cost over $1 billion.

The Apollo program, also known as Project Apollo, was the third United States human spaceflight program carried out by the National Aeronautics and Space Administration (NASA), which succeeded in landing the first humans on the Moon from 1969 to 1972. It was first conceived during Dwight D. Eisenhower's administration as a three-person spacecraft to follow the one-person Project Mercury, which put the first Americans in space. Apollo was later dedicated to President John F. Kennedy's national goal for the 1960s of "landing a man on the Moon and returning him safely to the Earth" in an address to Congress on May 25, 1961. It was the third US human spaceflight program to fly, preceded by the two-person Project Gemini conceived in 1961 to extend spaceflight capability in support of Apollo.

The Central Artery/Tunnel Project (CA/T), commonly known as the Big Dig, was a megaproject in Boston that rerouted the Central Artery of Interstate 93 (I-93), the chief highway through the heart of the city, into the 1.5-mile (2.4 km) tunnel named the Thomas P. O'Neill Jr. Tunnel. The project also included the construction of the Ted Williams Tunnel, the Leonard P. Zakim Bunker Hill Memorial Bridge over the Charles River, and the Rose Kennedy Greenway in the space vacated by the previous I-93 elevated roadway. Initially, the plan was also to include a rail connection between Boston's two major train terminals. Planning began in 1982; the construction work was carried out between 1991 and 2006; and the project concluded on December 31, 2007, when the partnership between the program manager and the Massachusetts Turnpike Authority ended.

The Bradfield Scheme, a proposed Australian water diversion scheme, is an inland irrigation project that was designed to irrigate and drought-proof much of the western Queensland interior, as well as large areas of South Australia. It was devised by Dr John Bradfield (1867–1943), a Queensland born civil engineer, who also designed the Sydney Harbour Bridge and Brisbane's Story Bridge.

Released in 2006, The Fab@Home was the first multi-material 3D printer available to the public, and one of the first two open-source DIY 3D printers in the world, at a time when all other additive manufacturing machines were still proprietary. The Fab@Home and the RepRap are credited with sparking the consumer 3D Printing revolution.

The Falcon 9 first-stage landing tests were a series of controlled-descent flight tests conducted by SpaceX between 2013 and 2016. Since 2017, the first stage of Falcon 9 missions has been routinely landed if the rocket performance allowed it, and if SpaceX chose to recover the stage.

FarmBot is an open source precision agriculture CNC farming project consisting of a Cartesian coordinate robot farming machine, software and documentation including a farming data repository. The project aims to "Create an open and accessible technology aiding everyone to grow food and to grow food for everyone." FarmBot is an open source project allowing hardware, software and documentation modifications and additions from users.

The Gansu Wind Farm Project or Jiuquan Wind Power Base is a group of large wind farms under construction in western Gansu province in China. The Gansu Wind Farm Project is located in desert areas near the city of Jiuquan in two localities of Guazhou County and also near Yumen City, in the northwest province of Gansu, which has an abundance of wind resources. The complex is operating at below 40% utilization of the current 8 GW with a planned capacity of 20 GW.

Project Gemini was NASA's second human spaceflight program. Conducted between projects Mercury and Apollo, Gemini started in 1961 and concluded in 1966. The Gemini spacecraft carried a two-astronaut crew. Ten Gemini crews and sixteen individual astronauts flew low Earth orbit (LEO) missions during 1965 and 1966.

Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam for President Herbert Hoover by a joint resolution of Congress in 1947.

The Husab Mine, also known as the Husab Uranium Project, is a uranium mine in production since 2014 near the town of Swakopmund in the Erongo region of western-central Namibia. The mine is located approximately 60 kilometres (37 mi) from Walvis Bay. The Husab Mine is expected to be the second largest uranium mine in the world after the McArthur River uranium mine in northern Saskatchewan, Canada and the largest open-pit mine on the African continent. The Husab Mine started production towards the end of 2016 after completion of the sulfuric acid leaching plant.

The Lake Champlain Seaway was a canal project proposed in the late 19th century and considered as late as the 1960s to connect New York State's Hudson River and Quebec's St. Lawrence River with a deep-water canal. The objective was to allow easy ship traffic from New York City to Montreal through Lake Champlain, lowering transportation costs between the two cities.

A megaproject is an extremely large-scale investment project. According to the Oxford Handbook of Megaproject Management, "Megaprojects are large-scale, complex ventures that typically cost $1 billion or more, take many years to develop and build, involve multiple public and private stakeholders, are transformational, and impact millions of people". However, $1 billion is not a constraint in defining megaprojects; in some contexts a relative approach is needed, such as in developing countries, where a much smaller project could constitute a megaproject. Therefore, a more general definition is "Megaprojects are temporary endeavours characterized by: large investment commitment, vast complexity, and long-lasting impact on the economy, the environment, and society".

Ms. Tree, formerly known as Mr. Steven, and its sister ship, Ms. Chief are marine vessels chartered by SpaceX as platforms for recovery of rocket payload fairings. These ships have been retrofitted with large nets that are intended to catch fairings—to prevent the fairings from making contact with seawater—as a part of an iterative development program to create technology that will eventually allow rocket payload fairings to be economically reused and reflown.

The National Ignition Facility (NIF), is a large laser-based inertial confinement fusion (ICF) research device, located at the Lawrence Livermore National Laboratory in Livermore, California. NIF uses lasers to heat and compress a small amount of hydrogen fuel with the goal of inducing nuclear fusion reactions. NIF's mission is to achieve fusion ignition with high energy gain, and to support nuclear weapon maintenance and design by studying the behavior of matter under the conditions found within nuclear weapons. NIF is the largest and most energetic ICF device built to date, and the largest laser in the world.

The National Space Program was a set of policies and organisations under the Hawke and Keating Governments created with the goals of developing a national space industry in Australia. When the Howard Government came to power in 1996 the program was abolished following the advice of the Bureau of Industry Economics. The National Space Program was generally considered a failure by most media after its demise. During its existence it was crippled by a lack of budget, and multiple white elephant projects.

The Niagara Tunnel Project was part of a series of major additions to the Sir Adam Beck hydroelectric generation complex in Niagara Falls, Ontario, Canada.

Open Source Ecology (OSE) is a network of farmers, engineers, architects and supporters, whose main goal is the eventual manufacturing of the Global Village Construction Set (GVCS). As described by Open Source Ecology "the GVCS is an open technological platform that allows for the easy fabrication of the 50 types of industrial machines that it takes to build a small civilization with modern comforts". Groups in Oberlin, Ohio, Pennsylvania, New York and California are developing blueprints, and building prototypes in order to pass them on to Missouri. The devices are built and tested on the Factor e Farm in rural Missouri. Recently, 3D-Print reports OSE has been experimenting with RepRap 3-D printers as suggested by academics for sustainable development.

Project Orion was a study of a spacecraft intended to be directly propelled by a series of explosions of atomic bombs behind the craft. Early versions of this vehicle were proposed to take off from the ground ; later versions were presented for use only in space. Six non-nuclear tests were conducted using models. The project was eventually abandoned for multiple reasons such as the Partial Test Ban Treaty which banned nuclear explosions in space as well as concerns over nuclear fallout.

Precious Plastic is an open hardware plastic recycling project and is a type of open source digital commons project. The project was started in 2013 by Dave Hakkens and is now in its fourth iteration. It relies on a series of machines and tools which grind, melt, and inject recycled plastic, allowing for the creation of new products out of recycled plastic on a small scale.

The Rio Grande Project is a United States Bureau of Reclamation irrigation, hydroelectricity, flood control, and interbasin water transfer project serving the upper Rio Grande basin in the southwestern United States. The project irrigates 193,000 acres (780 km2) along the river in the states of New Mexico and Texas. Approximately 60 percent of this land is in New Mexico. Some water is also allotted to Mexico to irrigate some 25,000 acres (100 km2) on the south side of the river. The project was authorized in 1905, but its final features were not implemented until the early 1950s.

The San Juan–Chama Project is a U.S. Bureau of Reclamation interbasin water transfer project located in the states of New Mexico and Colorado in the United States. The project consists of a series of tunnels and diversions that take water from the drainage basin of the San Juan River – a tributary of the Colorado River – to supplement water resources in the Rio Grande watershed. The project furnishes water for irrigation and municipal water supply to cities along the Rio Grande including Albuquerque and Santa Fe.

Amasa Stone Bishop was an American nuclear physicist specializing in fusion physics. He received his B.S. in Physics from the California Institute of Technology in 1943. From 1943 to 1946 he was a member of the staff of Radiation Laboratory at the Massachusetts Institute of Technology, where he was involved with radar research and development. Later, he became a staff member of the University of California at Berkeley from 1946 to 1950. Specializing in high energy particle work, he earned his Ph.D. in Physics in 1950.

The Snowy Mountains scheme or Snowy scheme is a hydroelectricity and irrigation complex in south-east Australia. The Scheme consists of sixteen major dams; nine power stations; two pumping stations; and 225 kilometres (140 mi) of tunnels, pipelines and aqueducts that were constructed between 1949 and 1974. The Scheme was completed under the supervision of Chief Engineer, Sir William Hudson. It is the largest engineering project undertaken in Australia.

The SpaceX reusable launch system development program is a privately funded program to develop a set of new technologies for an orbital launch system that may be reused many times in a manner similar to the reusability of aircraft. SpaceX has been developing the technologies over several years to facilitate full and rapid reusability of space launch vehicles. The project's long-term objectives include returning a launch vehicle first stage to the launch site in minutes and to return a second stage to the launch pad following orbital realignment with the launch site and atmospheric reentry in up to 24 hours. SpaceX's long term goal is that both stages of their orbital launch vehicle will be designed to allow reuse a few hours after return.

The Spier Falls Dam is a hydroelectric dam on the Hudson River between the towns of Moreau, New York and Lake Luzerne, New York.

Tantangara Dam is a major ungated concrete gravity dam with concrete chute spillway across the Murrumbidgee River in Tantangara, upstream of Adaminaby in the Snowy Mountains region of New South Wales, Australia. The dam is part of the Snowy Mountains Scheme, a vast hydroelectricity and irrigation complex constructed in south-east Australia between 1949 and 1974 and now run by Snowy Hydro. The purpose of the dam includes water management and conservation, with much of the impounded headwaters diverted to Lake Eucumbene. The impounded reservoir is called Tantangara Reservoir.

The Trump wall, commonly referred to as "the wall", is an ongoing expansion of the Mexico–United States barrier during the U.S. presidency of Donald Trump. Throughout his 2016 presidential campaign, Trump called for the construction of a border wall. He claimed that, if elected, he would "build the wall and make Mexico pay for it". President of Mexico Enrique Peña Nieto said that Mexico would not pay for the wall.