Eiffel Tower (1889)For the World Exposition in Paris
From Cape Cod, Massachusetts.
Eli Whitney (1793)'s cotton ginThis separated the useful raw cotton from its seeds, making the cotton industry much more profitable. It had mixed effects — remember how a lot of cotton was farmed using slave labor.
Karl Benz's internal-combustion automobile engine (1885)
Richard Arkwright's water frame (1769)More efficient thread spinning
Marc Brunel's first underwater tunnel (1826-1842)Under the Thames
First skyscraper (10 stories tall) (in Chicago)
Frozen!
Frozen!
Large suspension bridge, "triumph of engineering."
Daguerre's daguerrotype (1838)Early form of photography
Liverpool and Manchester Railway (1830)Began the first regular commercial rail service
James Brindley (1761)'s Bridgewater Canal
Made communicating across long distances much easier, but such conversations still had to be done in public, etc.,
Boost!
Boost!
Thomas Edison (1879)Invented the incandescent lamp. Though he was, in general, prone to rude tendencies.
First occurred in 1850. Gasoline is an important fuel source.
Charles Babbage (1834)'s analytic engineFirst ancestor of the computer
Thomas Alva Edison's phonograph (1877)This is a record player. Useful for music, instructions, etc.,
Boost!
Boost!
Allowed for more sewing, including at-home
Henry Bessemir's steel converter (1854)Revolutionized the production of steel
First commercially successful (though kind of clumsy) steam engine, used to pump water out of coal mines. Big deal, since we've just unlocked a new power source.
Hiram Maxim's machine gun (1884)Mass slaughter is now possible, begins mechanization of warfare. Unfortunately, as some predicted, his machine gun did not prevent war — people still fought, despite these monsters being on the battlefield.
The first successful steamboat. Like the locomotive, made trade so, so much better. For example, now the US could leverage its advantage in having the Mississippi river.
Robert Trevithick (1801)'s steam locomotive demonstrationGeorge Stephenson's Rocket, 1829, would lead to great railroad infrastructure, which helped with city planning, made moving to the city easier, and made trade and large-scale commerce much better. For example, now placing factories in population centers made more sense. (I barely understand why myself, but okay)