| 单词 | heavier-than-air |
| 例句 | Santos-Dumont's dirigible took a critical step in flight's evolution from lighter- to heavier-than-air. Chris Burden's 'Ode to Santos Dumont' inspires wonder, delight 2015-05-18T04:00:00Z At 37, Nadar made his first balloon ascent, quickly growing convinced that only a heavier-than-air flying machine, probably one with a propeller, could ever properly navigate the skies. He photographed Victor Hugo and Jules Verne — now the spotlight is on him 2017-07-19T04:00:00Z Safety concerns increased in 2020 after a pipeline in Mississippi ruptured in a landslide, releasing a heavier-than-air plume of carbon dioxide that displaced oxygen near the ground. Pipeline debate at center of California carbon capture plans 2023-02-25T05:00:00Z Two brothers from Dayton, Ohio, conducted four machine-powered, heavier-than-air flights under human control on a single day in December. Opinion | Iron-air batteries: Huge green-energy breakthrough, or just a lot of hype? 2021-07-27T04:00:00Z Like many scientifically minded people of that era, Christmas was infatuated with heavier-than-air flight. Perspective | A Virginia historian claims aviation history was made in 1908 in Fairfax 2020-07-20T04:00:00Z Shown below in an artist's rendering, the aircraft will demonstrate the viability and potential of heavier-than-air vehicles on Mars, the space agency writes. Mars helicopter to fly on NASA’s next rover mission to the Red Planet 2020-04-30T04:00:00Z Getting a heavier-than-air craft to fly on Mars is tough because Martian air is much thinner than Earth’s. NASA’s Mars Helicopter has passed another flight test 2019-06-06T04:00:00Z Gran won the Polar medal for his explorations in Antarctica, going on to become the first man to pilot a heavier-than-air plane across the North Sea in 1914. Antarctic diary records horror at finding Captain Scott's body 2018-12-12T05:00:00Z Among Armstrong’s personal items are pieces of a wing and propeller from the 1903 Wright Flyer, the first successful heavier-than-air powered aircraft. Aviation memorabilia from Glenn, Armstrong up for auction 2018-11-01T04:00:00Z Armstrong was the first person to walk on the moon and the famed Wright brothers’ flyer was the first heavier-than-air powered aircraft. Aviation memorabilia from Glenn, Armstrong up for auction 2018-11-01T04:00:00Z The craft will undergo a 30-day test campaign once it reaches the Red Planet to demonstrate the viability of travel above the Martian surface with a heavier-than-air craft. NASA Will Send a Helicopter to Mars in 2020 2018-05-14T04:00:00Z Nasa is sending a helicopter to Mars, in the first test of a heavier-than-air aircraft on another planet. Nasa will send helicopter to Mars 2018-05-11T04:00:00Z The heavier-than-air chemical can pool in places with poor ventilation, like bathrooms. EPA signals it will ban toxic chemical found in paint strippers 2018-05-10T04:00:00Z A Bridgeport event is scheduled for Monday to recognize Gustave Whitehead and the 116th anniversary of what state officials have called the “first manned, controlled flight of a powered, heavier-than-air aircraft.” Texas bill limiting insurance coverage for abortion advances 2017-08-13T04:00:00Z A heavier-than-air hybrid from Lockheed Martin can land on any flat land or ice. Airships in the Arctic 2016-06-09T04:00:00Z It was the world’s first heavier-than-air, powered, controlled flight, according to the National Park Service, which maintains a historic site there. Lost plans for Wright brothers’ ‘Flying Machine’ found after 36 years 2016-04-02T04:00:00Z Nasa describes the helicopter as a "heavier-than-air" aircraft because the other type - sometimes called an aerostat - refers to aircraft like balloons and blimps. Nasa will send helicopter to Mars 2018-05-11T04:00:00Z It challenges that Gustave Whitehead “successfully flew a powered, heavier-than-air machine of his own design on August 14, 1901, or on any other date.” Ohio bill would add historic Wright Flyer to state’s seal 2015-12-02T05:00:00Z Lord Kelvin famously declared, just eight years before the Wright brothers launched from Kitty Hawk, that heavier-than-air flight was impossible. The Doomsday Invention 2015-11-23T05:00:00Z This vacant trope has survived 116 years that include heavier-than-air flight, relativity theory, antibiotics, semiconductors, and the Internet. Let's Use Data And Tech To Create A Government That Works 2015-06-05T04:00:00Z The measure repudiates Connecticut's contention Gustave Whitehead successfully flew a powered, heavier-than-air machine of his own design on Aug. 14, 1901, "or on any other date." Ohio panel OKs measure saying Connecticut not 1st in flight 2015-04-14T04:00:00Z The measure repudiates Connecticut’s claim that Gustave Whitehead successfully flew a powered, heavier-than-air machine of his own design on August 14, 1901 “or on any other date.” Ohio panel OKs measure rejecting claim CT was 1st in flight 2015-04-14T04:00:00Z If passed, it would repudiate Connecticut's claim that Gustave Whitehead "successfully flew a powered, heavier-than-air machine of his own design on August 14, 1901, or on any other date." Ohio lawmakers take on Connecticut over 1st in flight claim 2015-03-17T04:00:00Z “Before his death, in 1907, Lord Kelvin carefully, carefully calculated that a heavier-than-air flying machine would never be possible,” Friedel says. Graphene: Fast, Strong, Cheap, and Impossible to Use | The New Yorker 2014-12-15T05:00:00Z It’s easy to cherry-pick catastrophic blunders of futurism, like physicist Lord Kelvin claiming that heavier-than-air flight was impossible. Stop predicting the future. Leave that to the robot who's going to steal your job 2014-08-11T04:00:00Z Most historians and aviation experts say Orville and Wilbur Wright earned the distinction of being the first to fly a heavier-than-air machine in Kitty Hawk, North Carolina. State representative who touted aviation dies 2014-06-01T04:00:00Z Two Americans – the Wright brothers of Dayton – invented heavier-than-air flight. If The United States Is A Serious Country, Why Can't It Build A Serious Airport? 2014-05-18T04:00:00Z Experts say their heavier-than-air machine qualifies as the first airplane because it brought together lift, control and thrust systems for the first time. Ohio lawmakers take on Connecticut over 1st in flight claim 2015-03-17T04:00:00Z On December 17, 1903 the Wright brothers gained credit for the first ever heavier-than-air flight. What do Drones, Bitcoin and Football Helmets have in common? 2014-05-07T16:51:00Z In 1903, a man lifted off from the ground in a heavier-than-air machine flying under its own power. Variolation, Aviation, and Genetic Modification: Progress in the Face of Fear and Danger 2013-10-17T14:45:06.717Z The "Golden Hind," now virtually a heavier-than-air machine, was doing her level best to make up for the unlucky contretemps that had delayed her for eight precious hours. The Airship "Golden Hind" 2012-04-21T02:00:26.983Z Being a heavier-than-air body, in spite of the spirits that buoyed him up, he drifted downward into the courtyard below, breaking his miserable neck. Superwomen 2012-04-03T02:00:38.047Z For years inventors studied ways of making a heavier-than-air machine sail through the sky like a bird. Boy Scouts in the Northwest Fighting Forest Fires 2011-09-22T02:00:25.017Z That part of an aviator’s training is usually confined to those who specialize in lighter-than-air craft, and Bill was a heavier-than-air pilot. Bill Bolton?Flying Midshipman 2011-04-14T02:00:39.800Z Wright were experimenting with heavier-than-air machines, but general interest in the subject is quite recent. Jane's All the World's Aircraft 1913 2011-01-04T03:01:14.690Z In the meantime experimental work was being carried on by the exponents of the heavier-than-air school, who soon abandoned the flapping-wing principle and eventually evolved the modern aeroplane. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide But it would be unjust to claim for them entire priority in the field of the glider and the heavier-than-air machine. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons The ever increasing size, power and stability of the heavier-than-air machine is plainly shown in the latest types of battle planes, in which a spread of wings exceeding seventy-five feet is no longer a novelty. The Story of the Great War, Volume V (of 8) Battle of Jutland Bank; Russian Offensive; Kut-El-Amara; East Africa; Verdun; The Great Somme Drive; United States and Belligerents; Summary of Two Years' War "But what would you think if I told you that there is not an ounce of gasoline in my heavier-than-air craft?" Astounding Stories of Super-Science February 1930 They have gained a slight advance over France, in fact, in this branch of aeronautics; but they have quite dropped behind in the question of heavier-than-air machines. The War in the Air; Vol. 1 The Part played in the Great War by the Royal Air Force The creation of No. 2 Company, stationed at Larkhill, marked the first formation of a British military unit composed entirely of heavier-than-air aircraft. Aviation in Peace and War The most common form of bomb used in the heavier-than-air machines was pear-shaped, with a whirling tail to keep the missile upright as it falls. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons He showed that a heavier-than-air machine would sustain itself in the air if it could only be driven fast enough. American Men of Mind THE AVRO.—The aeroplane designed and built by Mr. A. V. Roe was the first successful heavier-than-air flying machine built by a British subject. The Aeroplane Speaks Fifth Edition The honor of having designed the first ship like that, the first heavier-than-air ship that ever flew without wings, jets, or props—that is something to remember. The Black Star Passes In 1911 the authorities could no longer close their eyes, especially at a time when rumours of war were rife, to the rapid development of heavier-than-air craft on the Continent. Aviation in Peace and War The story of the development of the heavier-than-air machine—which were called a�roplanes at first, but have been given the simpler name of airplanes—is far shorter than that of the balloons. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons Ornithopter--A dynamic flying machine of the heavier-than-air type, in which sustension is provided by the effect of reciprocating wing surfaces. The Handy Cyclopedia of Things Worth Knowing A Manual of Ready Reference Besides these, seven heavier-than-air machines started, all making for Newfoundland also. Around the World in Ten Days If the "Zeppelin" be excepted, the blimp is the most highly-developed and scientific heavier-than-air flying machine ever devised. Kelly Miller's History of the World War for Human Rights And then he thought of Burke, his classmate—Burke who had devoted his life to heavier-than-air machines, and who, since his memorable flight across the Atlantic in the Stormy Petrol, had been a national hero. The Man Who Rocked the Earth Not until the twentieth century did the advocates of the heavier-than-air machines show the value of their fundamental idea. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons After showing a marked talent with balloons, he turned his attention to heavier-than-air machines, and in 1906 created a world's record in a flight of 230 yards at a speed of twenty-five miles an hour. History of the World War An Authentic Narrative of the World's Greatest War For England has been slow to believe in the airships, pinning her aëronautical faith to heavier-than-air machines. Kings, Queens and Pawns An American Woman at the Front So great a mathematician and scientist as Professor Simon Newcomb made the emphatic remark that the dream of flight in a heavier-than-air machine was absurd and would never be realized. Analyzing Character "Well, my father had worked for years perfecting the plans of a heavier-than-air flying machine," Morris resumed. Ashton-Kirk, Investigator On his return to Paris he at once began experimenting with heavier-than-air machines. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons It was still a heavier-than-air machine, but the balance could be made nearly perfect. The Flying Legion Let us suppose that you are one of the majority of heavier-than-air persons who will shortly be wanting a good steady machine to rise to any ordinary occasion. Punch, or the London Charivari, Volume 156, June 11, 1919 This latter term is properly used only in referring to heavier-than-air machines which have no gas-bag lifting devices, and are made to really fly by the application of engine propulsion. Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship It was in 1910 that the British War office first began fully to realise that there might be military possibilities in heavier-than-air flying. A History of Aeronautics Turning from balloons to airplanes the Brazilian was the first aviator to make a flight with a heavier-than-air machine before a body of judges. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons James Gordon Bennett came to me and asked that I try some primary experiments to see if aerial navigation was feasible with 'heavier-than-air' machines. Edison, His Life and Inventions Moreover, the French military authorities evinced a certain disposition to relegate the dirigible to a minor position, convinced that it had been superseded by the heavier-than-air machine. Aeroplanes and Dirigibles of War Next only to the Butteridge machine, these were certainly the most efficient heavier-than-air fliers that had ever appeared. The War in the Air The fact that Germany was best prepared in the matter of heavier-than-air service machines in spite of the German faith in the dirigible is one more item of evidence as to who forced hostilities. A History of Aeronautics France on the contrary went mad with enthusiasm, and claimed for the Brazilian the honour of first demonstrating the possibility of flight in a heavier-than-air machine. Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons "Ideas" are the very foundation-stones of invention—if we may be allowed the figure of speech—and Englishmen are proud, and rightly proud, to number within their ranks the original inventor of the heavier-than-air machine. The Mastery of the Air Owing to the fertility of inventors and the resultant multiplicity of designs it is impossible to describe every type of heavier-than-air machine which has been submitted to the exacting requirements of military duty. Aeroplanes and Dirigibles of War In the heavier-than-air machine there is no automatic improvement in efficiency resulting from greater dimensions. British Airships, Past, Present, and Future The fining down of detail that brought weight to such limits as would fit the engine for work with heavier-than-air craft appears to have waited for the brothers Wright. A History of Aeronautics All of us agree that it is impossible for a heavier-than-air device to fly on its own through the air. Stories from the Old Attic One of his first trials with a heavier-than-air machine was made with a huge glider, which was fitted with floats. The Mastery of the Air How then can a heavier-than-air machine triumph over the unwieldy lighter-than-air antagonist? Aeroplanes and Dirigibles of War At that time no one had attempted to cross the Atlantic in a heavier-than-air plane, a feat later on successfully accomplished. Air Service Boys over the Atlantic It is no derogation of the work accomplished by the Wright Brothers to say that they won the honour of the first power-propelled flights in a heavier-than-air machine only by a short period. A History of Aeronautics That's where he contracted a bad cold, and when he had recovered, another man had been found for the heavier-than-air rôle— "What are you talking about?" A Man and His Money Strange to say, nearly all the German fatalities have taken place in air-ships, which were for some years considered much safer than the heavier-than-air machine. The Mastery of the Air Wood is not employed in the construction of these heavier-than-air craft. Aeroplanes and Dirigibles of War It has been proved to be effective in eliminating 75 per cent. of the accidents which have characterized all of Germany's adventures in dirigibles and heavier-than-air machines. The Secrets of the German War Office It would seem to be equally essential in the case of heavier-than-air machines, but this point is still debated. A History of Aeronautics I want the cadets to learn something about the fundamentals of heavier-than-air machines. Dick Hamilton's Airship, or, a Young Millionaire in the Clouds It must not be supposed that the invention of the steerable balloon was greatly in advance of that of the heavier-than-air machine. The Mastery of the Air In the duty of reconnoitring the dirigible possesses one great advantage over its heavier-than-air rival. Aeroplanes and Dirigibles of War The principal exception to this rule—Hildebrandt—wrote in 1906, and a good many of his statements are inaccurate, especially with regard to heavier-than-air experiment. A History of Aeronautics The age of tentative experiment was over, and, forerunner of the success of the heavier-than-air type of flying machine, successful dirigible flight was accomplished by Zeppelin in Germany, and by Santos-Dumont in France. A History of Aeronautics This is one reason why the machine-gun armament of aerial craft of the heavier-than-air type has not undergone extensive development. Aeroplanes and Dirigibles of War But such visitations are more to be dreaded by the lighter-than-air than by the heavier-than-air machines. Aeroplanes and Dirigibles of War They are able to throw bombs of larger size and charged with greater quantities of high explosive and shrapnel than those which can be hurled from heavier-than-air machines. Aeroplanes and Dirigibles of War |
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