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Transportation

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New technology for autonomous ship navigation systems

A safe steering for the remote-monitored and controlled autonomous ships of the future is currently under development. The new technology has been developed for navigation systems and ship autopilots, which steer ships automatically..

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Following a friend leads to unsafe driving behavior

A new study inspired by a court case involving a driver seriously hurt in an accident when following another car to a destination, provides evidence to show that the car behind makes risky driving maneuvers. Driving faster, more erratically, closer to the.

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Acoustical remake of car horns alerts without jarring

Sound permeates the human experience and gets our attention, sometimes traumatically so. Consider the car horn. It is a widespread practical application of this noise-trauma-alert principle -- and an increasing source of noise pollution worldwide as the g.

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Without HOV policies, urban traffic gets much, much worse

Cities plagued with terrible traffic problems may be overlooking a simple, low-cost solution: High-occupancy vehicle (HOV) policies that encourage carpooling can reduce traffic drastically, according to a new study..

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Tiny particles increase in air with ethanol-to-gasoline switch

The concentration of ultrafine particles less than 50 nanometers in diameter rose by one-third in the air of São Paulo, Brazil, when higher ethanol prices induced drivers to switch from ethanol to gasoline, according to a new study. The research te.

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aCar -- the electric 'all-rounder'

An electric car for Africa, custom-designed for the needs of the population there, that strengthens rural structures and helps drive the economy: scientists have been working intensively towards this goal for four years. The new prototype, the aCar, is de.

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What the world's tiniest 'monster truck' reveals

The world's shortest race by distance -- a fraction of the width of a human hair -- was a huge success for scientists working at the nanoscale. It spurred interest in molecular machines and led to a surprising new discovery, reports the team that ent.

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More durable, less expensive fuel cells

A new technology has been created that could make fuel cells cheaper and more durable. Hydrogen-powered fuel cells are a green alternative to internal combustion engines because they produce power through electrochemical reactions, leaving no polluti.