Listen & shadow
Audio library
One browse over published speeches, YouTube caption videos, studio reference recordings, and digital presenters. Twenty-five clips per page. Unpublished and unlabelled rows stay out.
Page 69 of 145 · 3622 clips · 25 per page
- Reference recordingrp
morning
morning
- Reference recordingrp
mother
mother
- Reference recordingrp
Mr. Utterson the lawyer was a man of a rugged countenance, that was never light…
Mr. Utterson the lawyer was a man of a rugged countenance, that was never lighted by a smile; cold, scanty and embarrassed in discourse; backward in sentiment; lean, long, dusty,…
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
As the American space agency NASA continues to carry out tests of its Ingenuity helicopter on Mars, it is also testing a future
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
aircraft design on Earth. NASA’s Ingenuity has been making test flights on the Red Planet for the past two-and-a-half years.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
The experimental helicopter arrived on Mars along with NASA’s Perseverance explorer, or rover, in February 2021.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
Both the rover and helicopter have been collecting images and data as they explore an area known as Jezero Crater.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
The goal of the exploration effort is to search for signs of ancient life on Mars.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
Agency engineers planned on Ingenuity completing just five experimental flights on Mars. But the helicopter has so far performed 66 flights.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
It has provided NASA with valuable data on building future aircraft to fly in space.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
Travis Brown is Ingenuity’s chief engineer at NASA’s Jet Propulsion Laboratory (JPL) in California.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
He said in a statement that with nearly every flight, the helicopter has progressed in new ways.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
Brown noted that over the past nine months, Ingenuity had doubled its top speed and height records.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
In addition, the aircraft’s operating speed and landings improved. Most Ingenuity flights only last two to three minutes.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
This is because the helicopter has energy and temperature limitations.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
NASA engineers say they have also been careful not to try to fly Ingenuity too fast because this can cause problems with its navigation system.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
The helicopter uses a camera to identify rocks and other things on the surface as it travels.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
If the aircraft goes too fast, it might not be able to navigate the best way forward.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
Controllers on the ground have said that to help with this issue, they have sent commands to Ingenuity to fly at higher levels.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
This way the aircraft has less chance of losing its way because surface objects stay in view longer.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
NASA says Ingenuity established a new height record, on flight 61, of 24 meters as it examined Martian wind conditions.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
On flight 62, the helicopter set a new speed record of 10 meters per second.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
During this flight Ingenuity also identified a new place for the Perseverance rover to carry out science experiments.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
These could be used in the future with a new generation of Mars helicopters.
- Public domaingeneral-american
NASA Continues Mars Helicopter Experiments, Tests New Design on Earth
During the tests, engineers reported the rotor blades had reached speeds nearly equal to Mach 1, the speed of sound.
Source badges: Public domain · Creator video · Digital presenter · Reference recording. Literary passages are public domain. Studio notes are not spoken in the audio.