Fast-moving, lighter cars are at the greatest risk of hydroplaning, in which a vehicle's tires lose contact with the road.

In addition to enhanced speed, serious accidents and technological advances have led to major innovations, leading to more aerodynamic and more protective cars.

Like a chain slipping off a ledge, as tectonic plates sink, their weight can pull the rest of the trailing plate forward, accelerating their movement. Plates can also break apart and fall, creating a suction effect that drives movement, resembling leaves following a passing car.

Flash flooding can be more dangerous than traditional floods, occurring within the span of hours and exhibiting rapid currents. Here's how atmospheric conditions and geography combine to make some locations ripe for the disaster.

F1 is the highest international level of open-wheel racing, where the wheels are not covered by the car's body, differing significantly from the NASCAR auto, which has covered wheels.

The average annual premium for auto insurance coverage in the US rose 26% in 2024, and rates are only expected to increase. The rate hikes aren't simply a result of more people getting into crashes. This video explores how a lack of trained auto mechanics, a tighter supply of used vehicles, record healthcare bills, and litigation are contributing to higher monthly insurance bills.

Snowpacks form unstable layers as weather shifts; a weak, refrozen layer buried under fresh snow can shear and release a slab avalanche on certain steep slopes. Triggers range from new snowfall to the movement of skiers, while survival depends on the presence of ski partners, beacons, and rescue teams.

Author Andrew Miller argues that widespread adoption of self-driving vehicles is no longer a distant promise, as Waymo expands into over 15 cities. However, he warns the technology's biggest remaining hurdles are political: liability, labor, and whether cities embrace or resist the shift.

Floods are a distant second, followed by hurricanes. That's according to data reported by the National Oceanic and Atmospheric Administration.

The decade found engineers pushing Formula 1 cars to their limits. The cars were faster than ever and drivers were taking bigger risks to win. Safety features, however, remained the same. With vintage footage and driver interviews, this Daily Fuel Up video explores some of the wildest crashes from the era and, importantly, what changes FIA made following the decade’s 12 driver deaths.

The movement of an object across latitudes causes it to take a curved trajectory because its speed no longer matches that of the ground beneath it. This phenomenon, called the Coriolis effect, explains why hurricanes spin counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

A storm surge is an abnormal rise in water levels generated by a storm that exceeds predicted tides. It is particularly dangerous in coastal regions, where it can generate extreme flooding well before the hurricane makes landfall.

The Saffir-Simpson scale categorizes hurricanes based on wind speed, but tropical cyclones' main dangers are storm surges and heavy rainfall. To better communicate risks to the public, a new system that incorporates hurricane size, water content, and other complexities should be developed.

Winds can accelerate due to a tunneling effect as they pass under a structure, making seeking shelter from a tornado in a mobile home or recreational vehicle highly discouraged. Significant tornado damage results from debris being picked up and hurled by strong winds, making it unsafe to be near windows that may shatter.

Past models have proposed that slipperiness arises from a thin layer of liquid water formed at the ice's surface by frictional melting. However, new research suggests that electromagnetic forces between interacting surfaces push water molecules out of an ordered, crystalline structure and into a shapeless, soft, slippery layer. This process occurs solely through contact, independent of pressure or friction.

Despite features like fast refueling and zero emissions, hydrogen vehicles face significant hurdles in affordability and infrastructure. As of 2025, there are about 200,000 electric vehicle charging stations compared to fewer than 100 hydrogen fuel ones.

Figure skaters leverage the conservation of angular momentum during spins by tightening their bodies, and the skintight suits used in ski jumping help reduce drag. Centripetal force allows speedskaters to make tight turns, while friction on skis helps ski mountaineers climb slopes. No action can violate the conservation of energy.

This page provides answers to questions on topics ranging from liability for crashes involving autonomous cars to the safety benefits of these cars. A timeline of the evolution of automated safety technologies is also provided.

Each type is defined based on what disrupts airflow in the atmosphere, including thunderstorms, mountains, and wakes produced by aircraft that previously took off. Pilots classify turbulence as light, moderate, severe, or extreme based on how it affects aircraft movement.

Simulations show patches of fluid particles, such as splashes of milk, bend under turbulent flow, creating curvature that grows linearly then exponentially. This accelerated deformation enhances folding and mixing faster than other methods, such as stirring or beating.

Formula 1 cars are the peak of human engineering, and the humans driving them must have exceptional skills to master their cars. This Wired video talks to former performance coach Clayton Green to uncover what makes Formula 1 drivers such unique athletes. Learn why drivers focus on neck strength to combat extreme g-forces, and what those forces do to a driver's body over a race.

Aside from two different models of Porsches, the cars with the lowest rates of depreciation after five years aren't luxury vehicles. For instance, Honda Civics and Toyota Corollas both made the top 10 list. To see the ranking, which is based on data from over 1.1 million used cars from model year 2018 and sold between November 2022 and October 2023, click here.

A Tesla Model X collided with stopped emergency vehicles on a Texas highway when flashing lights created hazy images that the software could not interpret. The crash injured five people and hospitalized another person while highlighting the challenges of autonomous systems.

Dutch engineer Thomas de Wolf created a car for a goldfish, or a water tank on wheels that is directed by the movements of the creature inside it. Using a motion-sensing camera, when Blub the fish moves to one side of the tank, the camera moves in the same direction.

F1 racing cars go over 200 mph, making fatal crashes inevitable throughout its history. Car models have changed many times to make them safer, but the sport has never adopted a closed cockpit, a perhaps obvious solution to protecting drivers from fast-flying debris. Instead, F1 cars have a halo-shaped top, which helps cool drivers, allow for quick escape, and more. Watch a breakdown here.

Despite being the most common type of fluid flow in our world, scientists have struggled to model turbulent flow accurately. Though behaving unpredictably, understanding inertia and viscosity can help determine whether turbulence will occur.

These vehicles are purpose-built to carry water, foam, hoses, ladders, and lifesaving equipment to a scene in minutes. This animated video pulls apart every system inside a pumper truck, showing exactly how the machinery that fights fires actually works.

Following the death of Dale Earnhardt Sr. in 2001, NASCAR changed its culture to be safety-first. Part of its changes were to install barriers along tracks that would help absorb the majority of g-forces in a crash. This Daily Downforce article walks through the history of the SAFER barriers, why NASCAR originally chose concrete, and how much of the tracks are covered today.

Tropical cyclones, also called hurricanes and typhoons, cause catastrophic damage when they strike land. This four-minute video explores the life cycle of cyclones—how atmospheric conditions, ocean temperatures, and the Earth's rotation combine to create them, and how they are driven by winds and eventually weaken after moving over land.

Safety was the leading consumer fear, with technological malfunctions coming in second. Nearly half of all consumers identified skepticism or concern as their primary descriptor for autonomous cars, but 20% cited enhanced mobility for the elderly and people with disabilities as a key benefit.

Alongside a rainstorm that moved into the region ahead of it, the hurricane released an unprecedented 40 trillion gallons of rain on the southeastern US, causing catastrophic flooding and at least 100 deaths. Meteorologists suggest climate change is exacerbating the severity of such events.

The first generation of NASCAR automobiles were nearly identical to on-the-street models, with no modifications allowed to the body or frame. They even raced with doors. Fast-forward 75 years and the cars are 670-horsepower machines designed for racing.

The share of overall new auto sales under $25k was 4.8% in February 2025, according to the automotive pricing source Edmunds. That's down from 23% during the same month in 2019.

At level 0, a vehicle cannot intervene on its own, and the driver controls all navigation. At level 3, the car operates autonomously under limited conditions, but a human can still take control. A future level 5 vehicle drives itself and lacks a steering wheel or pedals.