April 28, 2015 10:20 UTC

Science & Technology

Improved Seeds Could Help Africa Feed Itself

Edward Mabaya explains the African Seed Access Index

04/26/2015
For many years, large government organizations controlled the production of seeds in Africa. Owners of small farms had to buy seeds from these agencies. But now there is an effort to make seeds from other suppliers available to African farmers. The new seeds may someday help Africa feed itself. More

Video Looking to Webb Telescope on Hubble 25th Anniversary

The Hubble Space Telescope has been orbiting the Earth since 1990. Hubble has provided amazing pictures of space over the past 25 years. But as NASA officials mark the anniversary, work on the new James Webb Space Telescope continues.

Audio Tuberculosis Found in 18th Century Bodies

TB mostly affects poor people and those infected with HIV, the virus that causes AIDS. But the opposite was true 2 ½ centuries ago, when the disease infected wealthy Europeans. Researchers say new findings could change how TB is treated today.

Audio Where Have All the Bees Gone?

Bees play an important part in the growth of crops. About 4,000 wild bee species are native to North America. Other bee species on the continent were imported from Europe to produce honey. Bees also serve as crop pollinators. These pollinators carry material from one plant to another.

Quiz - Tuberculosis Found in 18th Century Bodies

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Audio Changing Gene in Plant Could Yield More Crops

Plants have a “biological clock” that tells them when to produce leaves, seeds and other growth. Scientists develop crops that can feed a growing population in an increasingly warmer world. Current rate of production will not be enough to feed 9.5 billion people on earth by 2050.

Video Motor-Free Device Reduces Stress from Walking

Devices that help people walk were once thought to be difficult, if not impossible, to design. Until recently, such a device required electricity from an external power supply. Now, American scientists have built a small, wearable addition to normal shoes.

Video Seoul Demonstrates Environmental Investments

South Korea's capital city demonstrated its investments in "green" technology at a climate change conference. Seoul’s mayor said that green technology investments are paying off in his city. He also says he has reached out to 13 cities in China and Mongolia to help them fight environmental problems.

Video Finding Hidden Cracks with Sound Waves

Finding hidden cracks and other weak areas in large structures can be the difference between life and death. Researchers in Britain say they have discovered a new way to identify cracks inside metal parts before they fail. Their method involves using sound imaging.

Audio Study: Use of Antibiotics in Farm Animals Expected to Grow

A study has found the amount of antibiotics given to farm animals is expected to increase by two-thirds over the next 15 years. As the world demands more meat, milk and eggs, experts worry that heavy use of the medicine in livestock will cause a sharp increase in antibiotic-resistant infections.

Quiz - Scientists Use Sound Waves to Find Hidden Cracks in Bridges, Airplanes

See how well you understand the science report by taking a short quiz.

Audio Apple Makes 'the Best Smartwatch,' Not for Everyone

After several days of using the new Apple Watch, many reviewers called it “the best smart watch” but others wondered if the watch is for everyone. Customers will have to pay at least $349 for the least expensive model or as much as $17,000 for the Apple Watch Edition.

Video Robot Helps Heal Human Muscle Damage

A Polish company has developed a robot that helps therapists. The robot tells therapists about their patients progress and can choose the best exercises to help rehabilitate people with injuries that affect movement. Egzotech expects to have other robots ready for sale later this year.

Video Mobile Device Diagnoses HIV, Syphilis in Minutes

Diagnosing sexually transmitted diseases like syphilis and HIV the virus that causes AIDS require costly tests. Poor patients living in rural areas are even less likely to be able to receive such tests. So, researchers have developed a mobile phone device that may make the tests less costly.

Audio Dispute About Genetically Engineered Rice

“Opponents of genetically modified foods -- including the environmental group Greenpeace – do not like what the scientists are doing. But supporters of golden rice say it could help save as many as two million lives a year. Young children and pregnant women can die from Vitamin A deficiency.

Video Robot Scientist Helps Design New Drugs

Robots are common in today’s world. They manufacture cars, work in space, explore oceans, clean up oil spills and investigate dangerous environments. And now, scientists at the University of Manchester are using a robot as a laboratory partner.

Audio Land-Use Changes May Increase Risk of Plague

Efforts to increase food production in Africa may be increasing the risk of plague infection. A new report looks at efforts to clear land for farming in natural, undeveloped areas of Tanzania. The report links the development of croplands to an increase in the number of rats carrying the plague.

Video Dead Sea Scrolls Still Have Lessons to Teach

A California museum is now showing the largest exhibit of the Dead Sea Scrolls ever seen outside of Israel. There are 20 Dead Sea Scrolls and many other royal and ritual objects on display in the exhibit. Modern science is revealing hidden texts and the exact age of the scrolls.

Video Could Drones Help Save Rhinos in South Africa?

Searching for illegal hunting is best done from above. But piloted flights are costly. Now, some college students have made a drone to look for poachers. It is low cost and can observe more places than other aircraft. South African officials may find drones a good tool in animal protection efforts.

Video NASA to Study Astronaut on Yearlong Mission in Space

US astronaut Scott Kelly is scheduled to go to the International Space Station for a second time. Scientists hope the yearlong mission will provide important information about the physical and mental effects of living in space for a long period and pave the way for a future piloted flight to Mars.

Learn with The News

  • Audio At ASEAN, Territorial Dispute Gets Delegates’ Attention

    Leaders from Southeast Asian nations are meeting in Kuala Lumpur, the capital of Malaysia. The leaders have called for a peaceful settlement of competing territorial claims in the South China Sea. Their calls are a sign of growing tensions because of Chinese activities in the Spratly Islands. More

  • Audio Japanese Prime Minister Begins US Visit

    Trip comes as security relationship between US and Japan is changing, 70 years after the end of World War II. But few Japanese support a change in the country’s security policy. Korean-Americans expected to protest visit; they are angry about sexual slavery of Korean women in World War II. More

  • Photogallery Aid Arrives in Nepal, Death Toll Rises Above 4,000

    US calls Iran nuclear deal monitoring ‘most extensive’ ever; funeral Monday for black man who died in police detention; Japanese Prime Minister in US; ASEAN conference begins in Malaysia; and, Australia claims corruption in drug trafficking trial in Indonesia | In the News More

  • Audio New Paris Concert Hall Hopes to Link Rich and Poor Music Lovers

    The new Paris Philharmonic concert hall opened earlier this year. Long before opening day, people questioned the large amount of money required to pay for the building. Now, the biggest problem is a social one. Can the concert hall influence a new generation of classical music lovers? More

  • Pope Francis celebrates a Roman Catholic religious service called a Mass. The Mass observed the 100th anniversary of the Armenian Massacre, in St. Peter's Basilica, at the Vatican Sunday, April 12, 2015. Historians estimate that up to 1.5 million Armenians were killed by Ottoman Turks around the time of World War I. Many people who study genocides believe it was the first genocide of the 20th century. Turkey denies that the deaths should be considered a genocide. It says the number of dead is lower than what reports say it was, and that those killed were victims of civil war and unrest. (AP Photo/Gregorio Borgia)

    Video TIME Lists World’s 100 Most Influential People

    TIME Magazine has released a list of 100 people it says are the “most influential” people in the world. They are government leaders, activists, artists and celebrities.The list includes U.S. President Barack Obama, Cuban leader Raúl Castro, and Pope Francis, the leader of the Catholic Church. More

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    Islam is the fastest growing religion in the world, according to a new study. The Pew Research Center spent six years studying the demographics of population and religion around the world. What they found is that as the world population grows between 2010 and 2050, so will Islam. More

  • Audio When It Comes to Money, Black Is Better Than Red

    Colors come to the rescue when you want to describe a business that is making money or losing money. Judging from Jack Ma's smile at Alibaba's IPO at the New York Stock Exchange, he's making a lot of money. Also learn other useful banking terms. More

  • Audio Everyday Grammar: In, On and At

    Many learners have questions about English grammar rules for using prepositions of place and time. We present a few simple guidelines to help you put your prepositions in the right places. In English, though, there is always an ‘exception to the rule. More

  • Video Monkeys Rule the Ruins in Disney Documentary

    The new Disneynature film “Monkey Kingdom” centers on a troop of tocque macaques that live in a special place in Sri Lanka. The animals live under a strict social order. New mother Maya is low on that order and struggles for survival with her newborn, Kip. Danger and drama define their existence. More

  • Video Benito Cereno by Herman Melville, Part Three

    Today we complete the story of Benito Cereno, written by Herman Melville. As we told you in earlier parts of our story, rebel slaves seized the ship San Dominick off the coast of Chile. They killed many of its officers and crew. The captain, Benito Cereno, was ordered to sail to Senegal. But... More

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