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.

1

South Dakota sits right in the middle of it all

Image: Intricate Explorer

Just outside the town of Belle Fourche, South Dakota, lies the geographic center of the United States when you include Alaska and Hawaii . It is not marked with neon signs or big crowds, but there is something satisfying about standing near the heart of the whole country. It feels like the center of gravity for the U.S.

2

Iowa is flanked by rivers on both sides

Image: Justin Wilkens

If you look at a map, you will see Iowa neatly tucked between two mighty rivers . The Mississippi River borders it to the east, and the Missouri River forms most of its western boundary. No other state can say that its entire east and west borders are made up of rivers. That gives Iowa a front-row seat to river life from both sides.

3

Kansas is flatter than a breakfast pancake

Image: Edson Saldaña

Believe it or not, a group of researchers once compared Kansas to a pancake and found that Kansas is actually flatter . This was not a joke. They used real measurements. If long, open roads and wide horizons are your thing, Kansas is the ultimate smooth ride.

4

Arizona has all the deserts in one place

Image: Keith Hardy

Arizona is not just dry, it’s uniquely arid. It is the only state that includes parts of nearly all of the major North American deserts . These include the Sonoran, Mojave, Chihuahuan, and Great Basin deserts. That makes it a desert lover's dream and a living science exhibit where four very different ecosystems meet in one sunbaked state.

5

Michigan lives and breathes freshwater

Image: Aaron Burden

Michigan has more freshwater shoreline than any other state in the country. It borders four of the five Great Lakes , features two peninsulas, and is even home to a floating post office that delivers mail by boat. If you enjoy water views and lakeside life, Michigan delivers the goods in a big way.

6

Connecticut gave counties the pink slip

Image: Rusty Watson

Unlike most states, Connecticut does not have county governments. The state decided back in the late 1950s and early 1960s to get rid of them entirely. Now, counties are just lines on a map and have no political power. If you live in Connecticut, you deal directly with your town or city. No middleman needed.

7

Delaware still uses ‘hundreds’ and no, not the money kind

Image: Gary Cole

In Delaware, land is still divided into areas called hundreds . These are old British-style subdivisions that originally represented areas able to support roughly 100 households. While they do not play a role in law or government today, the names still show up in property documents and tax records.

8

Kentucky hides the longest cave under its feet

Image: Joshua Sortino

Beneath Kentucky’s surface lies a giant underground wonder called Mammoth Cave. It holds the record as the longest known cave system in the world , with over 400 miles of mapped tunnels. That is a whole lot of rock and mystery. Whether you are into history, geology, or just cool natural landmarks, this cave system is something special.

9

Louisiana prefers parishes over counties

Image: Joe Lavigne

Louisiana does not have counties like the rest of the country. Instead, it has parishes , a term carried over from its French and Spanish colonial days. These parishes work the same way counties do elsewhere, but the name gives the state a unique cultural twist.

10

Montana provides the nation's platinum and palladium

Image: Calvin Chai

Montana is the only significant source of domestically mined platinum and palladium in the United States. These rare metals are used in things like jewelry, dental tools, and car parts. Tucked into its rugged mountains, Montana’s mines quietly produce some of the most valuable materials in the country.

11

Wisconsin has an official microbe, and it makes cheese

Image: Azzedine Rouichi

Of course, Wisconsin would go this route. The state named Lactococcus lactis as its official microbe. It is the helpful little organism behind the cheese-making magic. Without it, you would not have cheddar, Colby, or many other favorites. Leave it to the dairy state to give a tiny cheese-maker its moment of fame.

1

Clean your lens

Image: Mika Baumeister

We’ll start with probably the most essential—and somehow most overlooked—tip: take a moment to clean your smartphone’s camera lens. Over time, it can accumulate dust and smudges, which can result in hazy or blurry photos.

Give it a quick wipe with a soft, lint-free cloth . It can make a significant difference in the clarity of your shots.

2

Investigate your camera app

Image: Brett Jordan

Almost every single smartphone comes with a default camera app that’s user-friendly and packed with features. Take some time to explore it , learn how to switch between photo and video modes, and familiarize yourself with settings like Portrait Mode, Night Mode for low-light shots, and Panorama Mode for landscapes.

3

Use gridlines

Image: Jonathan Kemper

Gridlines allow you to center your focal points and enhance the visual appeal of your photos. Most mobile camera apps let you turn them on easily. These gridlines strategically divide your screen into thirds , both horizontally and vertically, adding balance and symmetry to your shot .

4

Focus and exposure control

Image: François Genon

Focus and exposure are two of the most important settings you can adjust in a manual camera to achieve different effects in photography. Fortunately, both functions are available on most modern smartphones.

By playing with different focus and exposure points, you can highlight a specific subject against a blurred background or ensure a well-balanced shot in difficult lighting conditions.

5

Lighting

Image: Ben White

Always try shooting in natural light, often referred to as available light, whenever the opportunity arises. Natural light gives a gentle, even illumination that can significantly enhance the quality of your photos.

Avoid harsh, direct sunlight, which can create intense and unflattering shadows, potentially leading to overexposed or underexposed areas. If you're shooting in low light, rest your phone on a flat surface to stabilize it for long exposures.

6

Play with composition

Image: Eaters Collective

Experiment with different angles and perspectives to enhance your subject. Don't be afraid to get low or high for a unique viewpoint. Also, pay attention to what’s in the background and eliminate any distractions that might detract from your subject.

7

Take pictures often

Image: Ferdinand Stöhr

Practice makes perfect. Since your phone is always with you, it’s easy to integrate photography into your daily routine. Whether you snap a selfie or take a few shots on your way to work, there’s no wrong way to be a smartphone photographer. Great photos often come from everyday life.

8

Take many shots

Image: The Free Birds

Long gone are the days when you had only 36 exposures in your camera and had to choose each shot carefully. One of the best things about smartphones is that you can take as many photos as you want, and there is no need to print them to see the results . This makes it much easier to learn and improve as you go.

9

Avoid digital zoom

Image: Redd Francisco

Digital zoom generally produces poor-quality images, even on the best smartphones. Avoiding it is one of the basic photography tips for taking better photos. Instead of using a digital zoom, simply move closer to your subject to maintain image quality.

10

Use HDR

Image: Kote Puerto

HDR stands for High Dynamic Range, and it’s a common feature on many smartphones. It enhances detail in both dark and light areas to provide a more balanced exposure . HDR prevents the sky from becoming too bright or the ground from appearing too dark, making it especially useful for landscape photography.

11

Set a high resolution

Image: TheRegisti

Simply put, the higher the resolution of your photo, the better quality it is . When taking pictures, try to get as close to the subject as possible, rather than zooming in. Take advantage of the higher pixel count.

12

Aspect ratio

Image: Alice Donovan Rouse

The aspect ratio determines the width and height of your photograph . The standard 4:3 ratio is versatile, but you can also choose widescreen 16:9 for a cinematic look or square 1:1 for Instagram-ready shots.