1

The light bulb

Image: Zach Lucero

Delivering electricity to the masses was one of the greatest technological advances in human history. The mid-1800s saw great competition in this area, as inventors around the world raced to invent their own electric light. The first filament bulb was developed by British inventor Warren de la Rue in 1840, but his use of a platinum filament made it expensive and impractical.

A few years later, Joseph Swan in the UK and Thomas Edison in the US each independently invented bulbs using cheaper elements. However, Edison received a patent on his bulb in early 1880, slightly before Swan. The light bulb, an invention that quickly reached every home, revolutionized life around the world, led to the development of the electrical grid, and set the stage for our modern electricity-dependent society.

2

The telephone

Image: viarami

In this modern era of emails and text messages, it can be hard to appreciate that the telephone was once revolutionary. The telegraph, the phone’s predecessor, only transmitted brief written messages. The telephone, however, allowed people to speak with one another in real time over long distances.

Inventor, scientist, and engineer Alexander Graham Bell invented the electric telephone in 1876. Although Bell was Scottish-born and also lived in Canada, he patented his invention in the US . The telephone was a game-changing technology that improved business efficiency, enabled instant global connections, and allowed emergencies to be reported as they occurred. It effectively made the world more connected and faster-paced.

3

The fire escape

Image: Lewis J Goetz

When we think of US inventions, the first things that come to mind are usually the light bulb or the telephone. But did you know that the modern fire escape was also a US innovation? Designed in 1887, this simple yet life-saving invention changed building safety forever.

In the late 1800s, fires were devastating cities across America. One woman, Anna Connelly, saw this horror up close and decided to do something about it. She designed an external iron staircase system, and in 1887, she patented it. At a time when women couldn’t even vote, Anna’s invention became a safety standard in most major cities, saving thousands of lives. Today her name is barely known, but next time you see a fire escape, remember the woman who made them possible.

4

The cash register

Image: Di Du

The first mechanical cash register for calculating and recording sales transactions was invented by saloonkeeper James Ritty following the American Civil War. He was looking for a way to stop cashiers from stealing, and finally patented his novel invention in 1879.

When a transaction was completed, Ritty's Incorruptible Cashier made a bell sound, and the amount was displayed on a large dial on the front of the machine. During each sale, a paper tape was hole-punched so the vendor could keep track of sales. Pretty ingenious, don’t you think?

5

Interchangeable parts

Image: gayulo

Standardized interchangeable parts for machines are now a staple of modern manufacturing, but it’s not a new idea. There’s evidence that thousands of years ago, ancient Carthage used them to build warships, and ancient China applied the idea to crossbows. Many centuries later, French experimentation with interchangeable musket parts inspired Thomas Jefferson.

In 1798, President George Washington and his Congress finally agreed to Jefferson’s idea of implementing the technology in America. They awarded a contract to Eli Whitney—the inventor of the cotton gin—to supply the government with 20,000 muskets. Whitney recognized the potential of developing firearms with identical parts and mechanisms. His advancements in interchangeable parts laid the foundation for modern manufacturing, enabling improved quality control, reduced costs, and faster production of goods.

6

The assembly line

Image: Public domain, via Wikimedia Commons

For most of human history, manufactured goods were custom-made. Every model of a machine, piece of clothing, or tool was unique. The development of interchangeable parts was a huge advancement, but automobile manufacturer Ransom Olds took it a step further with the assembly line in 1901. By standardizing and automating many aspects of manufacturing, uniform goods could be created faster and at lower costs.

Olds’ vehicle, the Oldsmobile Curved Dash, became the first mass-produced car . His method was later adopted and perfected by Henry Ford, whose moving assembly line for the Model T in 1913 revolutionized manufacturing. Today, the assembly line combines human labor and automation to produce nearly every mass-market product on Earth. Many experts agree it was one of the most significant technological developments of the 20th century.

7

The airplane

Image: Wright Brothers, Public domain, via Wikimedia Commons

People have always observed birds and insects and dreamed of flying. The Greeks told the story of Icarus and Daedalus, who crafted wings of wax and feathers; Leonardo da Vinci sketched and theorized flying machines, but it wasn’t until 1903 that the airplane became a reality in Kitty Hawk, North Carolina.

Wilbur and Orville Wright experimented with aeronautics for several years before achieving their successful first flight. A few years later, airplanes were first used in warfare. Within seven decades, their technology evolved and took us to the Moon. Today, the airplane is an indispensable technology that allows us to transport goods and people around the world in no time.

8

GPS

Image: Stanislav Kondratiev

It’s hard to imagine life without GPS—but do you know how it began? When the Soviet Union launched Sputnik in 1957, American physicists realized they could track the satellite’s radio transmissions using the Doppler effect.

Soon after, the U.S. military began testing and launching the Navstar Global Positioning System satellites. In 1983, President Ronald Reagan approved GPS for civilian use, and by the start of the 21st century, GPS devices were widely available in vehicles and mobile phones . Today, GPS is an essential technology for business, travel, and military operations.

9

Personal computers

Image: Unidentified U.S. Army photographer, Public domain, via Wikimedia Commons

The first electronic general-purpose computer, ENIAC, was built in 1946 at the University of Pennsylvania. It occupied 1,800 square feet of floor space and weighed 30 tons. At the time, imagining a consumer-grade computer small enough to fit in every home would have seemed impossible. Yet, just one generation later, the impossible became reality.

Over the years, computers became smaller, cheaper, and more powerful than the ENIAC’s creators could have imagined. In 1971, John Blankenbaker developed the first PC, the Kenbak-1. Fifty years later, it is clear that personal computing has fundamentally shaped the modern world.

10

The internet

Image: Lorenzo Herrera

Revolutionary technologies such as the wheel, the internal combustion engine, the telephone, and the airplane have forever changed the way we travel and communicate. The internet is no exception; it gives people access to the entirety of human existence with just a few clicks.

In 1969, computer scientists at the Advanced Research Projects Agency (ARPA) created the first network connecting labs at UCLA and Stanford. Over time, their network expanded, connecting anyone with a device. Since then, the internet has revolutionized the way human beings access resources and share information.

11

E-mail

Image: Brett Jordan

After the personal computer and the Internet, we only needed to invent a modern method of sending messages and letters to each other. The Advanced Research Projects Agency Network, known as ARPANET, sent the first email in 1971. Within five years, the majority of exchanges within the ARPANET community were via email.

With the introduction of attachments in the early 1990s, electronic mail became the fastest and easiest way to send information from point to point. By the start of the 21st century, email enabled people around the world to communicate quickly and inexpensively, and the technology quickly became one of the primary tools for global communications.

12

Magnetic resonance imaging

Image: MART PRODUCTION

The impact of the MRI machine on medicine is invaluable. The principles behind nuclear magnetic resonance (NMR) have been known since at least the end of World War II. Yet, two researchers in the late 1960s and early 1970s recognized the potential of this technology to revolutionize medicine forever.

American chemist Paul Lauterbur and physician Raymond Damadian separately experimented with NMR in scanning for cancer cells. After publishing the promising results of their experiments, a patent was filed. By 1977, the first full-body scanner was developed. Since then, millions of lives have been saved by the MRI machine. For his contributions, Lauterbur was awarded the Nobel Prize in Physiology or Medicine in 2003.

First Family, regular domestic problems

Ten ways the First Family changed the White House

Since 1800, the house at 1600 Pennsylvania Avenue has served as the president’s official residence. In the more than 200 years since, the presidential mansion has seen it all, from being set on fire by British forces to having planes crash on its lawn. Each administration has left its mark on the White House, with many presidents and first ladies expanding, renovating, and reimagining it while creating new traditions and customs. Let’s dive into 10 ways First Families changed the presidential residence.

New Year Reception (John and Abigail Adams)

Image: Ray Hennessy

John Adams was the first U.S. president to live in the White House—then referred to as the President’s Palace or the Presidential Mansion—alongside his wife, Abigail, who played a significant role in furnishing the newly built residence.

On New Year’s Day in 1801, the Adamses held a public reception for anyone who wanted to shake hands with the president and his wife. This tradition continued (with some interruptions) until 1932, when it was ended by Franklin D. Roosevelt, who allegedly wanted to avoid being seen using a wheelchair.

Indoor Toilets (Thomas Jefferson)

When Thomas Jefferson assumed the presidency, he discovered that the White House lacked indoor plumbing, toilets, and had only an outdoor wooden privy. He ordered the construction of two "water closets," one on each side of the residence.

During Jefferson’s tenure, the White House underwent several modernizations, including improvements to the lighting system, the kitchen, and exterior features such as gutters. He also had an outdoor wine cellar built to store his extensive collection.

White House China (James Monroe)

Did you know the White House has a special room dedicated to displaying the porcelain sets designed for each administration? The tradition of commissioning presidential china designs started in 1817, with President James Monroe.

Monroe’s china was designed and crafted in Paris, featuring an eagle carrying a red, white, and blue banner inscribed with "E Pluribus Unum." Following criticism over the presidential mansion’s purchase of foreign-made goods, Congress decided that future presidential china should be manufactured in the United States, though some presidential couples still chose to commission French china.

The Library (Abigail Fillmore)

When Millard and Abigail Fillmore moved into the White House, their approach to decoration and improvement differed from that of previous First Families. None of them came from a wealthy background, so they prioritized expanding the heating system and modernizing the kitchen.

More interested in intellectual pursuits than in socializing, Abigail noticed that the Presidential Mansion lacked a library and set out to create one. She personally organized the room, selected the books, and arranged them to her liking. The library became her main parlor, where she received literary figures of the time and listened to music.

Floral Arrangements (Lucy Webb Hayes)

A passionate abolitionist and the first First Lady to earn a college degree, Lucy Webb Hayes moved into the White House at the end of the Reconstruction era, and after a highly controversial election. With limited funds to renovate the presidential mansion, Mrs. Hayes found ingenious ways to conceal holes in the carpets and worn-down furniture.

Lucy Hayes was the first president’s wife to be referred to as "First Lady." She made several improvements to the White House, but she is most remembered for turning the billiard room into a greenhouse filled with flowers, which she then used for floral arrangements for the residence.

The West Wing (Theodore Roosevelt)

We all know that the West Wing is where the presidential office is located, but not everyone knows that it was not part of the original design of the White House. Before 1902, the president’s offices were located on the second floor.

When Theodore Roosevelt moved into the White House, he discovered there wasn’t enough space for his six children and the growing staff. His wife, Edith, suggested that the second floor be converted entirely into family living quarters and that the offices be moved elsewhere. The West Wing was then built as a temporary structure on the site of the old stables, but in the end, it became a permanent fixture of the residence.

The Oval Office (William Taft)

This office is known as the place where major decisions are made, but it wasn’t part of the White House’s original design. When President William Taft decided to make the temporary West Wing permanent, he also doubled its size and created the first Oval Office.

Its distinctive shape was inspired by the semicircular Blue Room in the main residence, where presidents traditionally received guests. That design, in turn, paid homage to the bow windows from which George Washington once greeted visitors at his presidential homes in New York and Philadelphia.

Interior Reconstruction (Harry S. Truman)

By 1949, the White House had endured a century and a half of wars, fires, political scandals, and modernization. With few renovations made during the Great Depression and World War II, President Truman and his family moved into a mansion that was literally falling apart—it was declared unsafe after a piano leg crashed through the floor of the family quarters.

The Trumans moved across the street during the three years the reconstruction took place. Due to the need for extensive renovations, a total demolition of the building was considered but not enacted. In the end, the decision was to preserve the exterior walls and completely rebuild and expand the interior.

Themed Christmases (Jackie Kennedy)

The White House’s themed Christmas celebrations are now a beloved tradition, complete with a spectacular tree and elaborate decorations. This lovely tradition was started in 1961 by Jackie Kennedy, who then chose The Nutcracker as a theme, and featured decorations crafted by disabled and elderly citizens.

Since then, First Families have carried on the themed Christmas tradition, honoring topics and interests relevant to the nation and highlighting causes dear to the presidential family.

Office of the First Lady (Rosalynn Carter)

First Ladies have always played an important role in supporting the president, managing the Presidential Mansion, and championing various causes. However, this role wasn’t always officially recognized or included in the White House budget.

Although some First Ladies before her had hired official staff, Rosalynn Carter was the first to organize hers into a formal Office of the First Lady , complete with departments dedicated to press, social causes, campaigns, and community outreach.

1

Northern frontier

Image: UC Berkeley, Department of Geography

Location: Point Barrow, AK

Point Barrow, the northernmost point in the U.S., was first explored by Europeans in 1826. Sitting at 71°23′N, it endures long, brutal winters with near-constant darkness.

Winter temperatures drop below -50°F, and the sea remains frozen for much of the year. Despite the conditions, native Iñupiat communities have thrived here for centuries. Today, it remains a key site for Arctic research.

2

Lowest land

Image: Karsten Winegeart

Location: Badwater Basin, CA

First documented in the mid-1800s, Badwater Basin in Death Valley is the lowest point in North America at 282 feet below sea level. It was named after a surveyor’s horse that refused to drink the salty water.

The basin’s extreme location means temperatures here frequently top 130°F in summer. Salt flats stretch for miles, remnants of an ancient lake that dried up thousands of years ago.

3

Hottest spot

Image: Pablo García Saldaña

Location: Furnace Creek, CA

On July 10, 1913, Furnace Creek recorded 134°F, the highest temperature ever measured on Earth. This Death Valley outpost still holds the title for the hottest inhabited place in the U.S.

Despite the heat, Furnace Creek has a permanent population and even a golf course, making it one of the strangest places where people manage to live. The area’s extreme conditions attract researchers studying heat endurance.

4

Coldest cold

Location: Prospect Creek, AK

Alaska’s Prospect Creek hit -80°F in 1971, the lowest temperature ever recorded in the U.S. Originally an outpost for pipeline workers, it’s now abandoned due to its brutal winters.

At this temperature, exposed skin can freeze in seconds, and vehicles must run continuously to avoid freezing. The area sees only a few hours of daylight in winter, making survival nearly impossible without proper equipment.

5

Windiest place

Image: Dan Meyers

Location: Mount Washington, NH

Mount Washington holds the record for the fastest surface wind speed ever recorded outside a tornado: 231 mph, measured in 1934. This New Hampshire peak is notorious for its deadly weather.

Though just 6,288 feet tall, its location at the convergence of several storm systems makes it feel like the roof of the world. Hikers often face hurricane-force winds, whiteouts, and below-zero temperatures even in summer.

6

Wettest town

Image: Martin Zangerl

Location: Kukui, HI

Kukui, on the Hawaiian island of Kauai, receives an average of 460 inches of rain annually. In 1982, it saw a staggering 683 inches, making it one of the wettest places on Earth.

The rain feeds lush tropical forests and countless waterfalls, but the steep terrain means flash floods are a constant danger. Despite its beauty, the relentless downpours make long-term settlement nearly impossible.

7

Deepest cave

Image: Joshua Sortino

Location: Lechuguilla Cave, NM

Discovered in 1986, Lechuguilla Cave is the deepest in the U.S., plunging 1,604 feet below New Mexico’s surface. It remained hidden for centuries due to its small, concealed entrance.

Its vast chambers contain formations found nowhere else on Earth, including giant gypsum chandeliers. Access is restricted to scientists, as the cave’s unique ecosystem is still being studied.

8

Largest volcano

Image: Sherry Jiang

Location: Mauna Loa, HI

Mauna Loa is the world’s largest volcano, covering half of Hawaii’s Big Island. It last erupted in 2022, continuing a pattern of activity dating back over 700,000 years.

Rising 33,500 feet from the ocean floor, Mauna Loa dwarfs even Everest when measured from base to peak. Its slow-moving lava flows have repeatedly reshaped the island’s landscape.

9

Deepest lake

Image: Jeff Hopper

Location: Crater Lake, OR

Formed by a collapsed volcano 7,700 years ago, Crater Lake is the deepest in the U.S. at 1,949 feet. Its intense blue waters come from rain and snowmelt, with no rivers flowing in or out.

The lake’s purity allows sunlight to penetrate to great depths, creating an otherworldly glow. Among its many wonders, the submerged "Old Man of the Lake," a floating log, has been drifting in its waters for over a century.

10

Most remote

Image: Harrison Hargrave

Location: Yellowstone Thorofare, WY

The Yellowstone Thorofare, 32 miles from the nearest road, is the most remote place in the Lower 48. It remains nearly unchanged since its first mapping in the 19th century.

Even experienced hikers struggle here, as grizzly bears, sudden storms, and subzero temperatures make survival difficult. This untouched wilderness offers a rare glimpse of what America once was.