10 most difficult inventions riddles A list of ten (out of 17) inventions related questions that are the most often answered incorrectly Inventions quiz In which country was the first mechanical vehicle constructed?In France. Iin about 1769 in France, Nicolas-Joseph Cugnot constructed the first full-scale, self-propelled,tricycle a steam-powered mechanical vehicle,. He also constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were, however, handicapped by problems with water supply and maintaining steam pressure. very hard 23% in USAin USA8%in Englandin England53%in Francein France23%in Germanyin Germany14%Created by: Tschuka. Statistics based on 109 answers in 2 languages »motorization riddles » When was the lawnmower invented by Edwin Beard Budding?1830. Budding's mower was designed primarily to cut the lawn on sports grounds and extensive gardens and was granted a British patent on 31 August 1830. It took ten more years and further innovations to create a machine that could be worked by animals, and sixty years before a steam-powered lawn mower was built.very hard 25% 1830183025%1870187038%1910191028%195019507%Created by: Ninjai. Statistics based on 716 answers in 2 languages » When Joseph-Louis Lambot used reinforced concrete for the first time?1848. In 1841 he started constructing water tanks using cement mortar and iron reinforcement. In 1848 he constructed his first boat using the same system which was later presented at the 1855 World's Fair in Paris.very hard 27% 1848184827%1888188839%1918191823%193819389%Created by: Ninjai. Statistics based on 855 answers in 2 languages »history of technics riddles » What is Hero's engine?Steam turbine. An aeolipile (or aeolipyle, or eolipile), also known as a Hero's engine, is a simple bladeless radial steam turbine which spins when the central water container is heated. In the 1st century AD, Hero of Alexandria described the device in Roman Egypt, and many sources give him the credit for its invention.very hard 30% A globeA globe4%Steam turbineSteam turbine30%The airshipThe airship13%A hot air balloonA hot air balloon51%Created by: Tschuka. Statistics based on 355 answers in 3 languages »antiquity riddles » Who invented spectroscope?Joseph van Fraunhofer. Joseph Ritter von Fraunhofer was a Bavarian physicist and optical lens manufacturer. He made optical glass and achromatic telescope objective lenses, invented the spectroscope, and developed diffraction grating. very hard 31% Issac NewtonIssac Newton18%William HerschelWilliam Herschel23%Joseph van FraunhoferJoseph van Fraunhofer31%Edwin HubbleEdwin Hubble27%Created by: Ninjai. Statistics based on 6165 answers in 3 languages »inventors riddles » The Claw of Archimedes was used as ...Weapon that protected Syracuse. Archimedes devised defensive devices to counter the Roman efforts including a huge crane operated hook – the Claw of Archimedes – that was used to lift the enemy ships out of the sea before dropping them to their doom. very hard 34% irrigation toolirrigation tool21%weapon that protected Syracuseweapon that protected Syracuse34%buoyancy testbuoyancy test21%locksmith's toollocksmith's tool22%Created by: Tschuka. Statistics based on 419 answers in 3 languages »ancient Greece riddles » Who constructed the first radio receiver?Nikola Tesla. Marconi was considered to be the first radio constructor but in 1943 the US Supreme Court has granted Tesla patent rights. Marconi admitted he was using Tesla's work in his construction.very hard 37% Guglielmo MarconiGuglielmo Marconi35%Nikola TeslaNikola Tesla37%Alexander Graham BellAlexander Graham Bell17%Thomas EdisonThomas Edison8%Created by: Ninjai. Statistics based on 279 answers in 2 languages »inventors riddles » How long does patent protection last?20 years. A patent is a set of exclusive rights granted by a sovereign state to an inventor or assignee for a limited period of time in exchange for detailed public disclosure of an invention. Patent protection is granted for a limited period, generally 20 years from the filing date of the application.hard 40% 20 years20 years40%30 years30 years23%50 years50 years25%70 years70 years11%Created by: Tschuka. Statistics based on 233 answers in 2 languages »offices riddles » Who in 1891 invented a first detachable tire ?Édouard Michelin. In 1891 Édouard Michelin and his brother Andre, he improved greatly on the design of the pneumatic tyre for bicycles, making tyres easier to change and repair. Michelin quickly adapted his inflatable tyres for use on motor vehicles, of which France was becoming the world's leading producer. Success came rapidly, and already in 1896 approximately 300 Paris taxis were running on Michelin pneumatic tyres.hard 40% Édouard MichelinÉdouard Michelin40%Charles Goodyear Charles Goodyear 24%J. B. DunlopJ. B. Dunlop24%Robert William ThomsonRobert William Thomson10%Created by: Tschuka. Statistics based on 245 answers in 2 languages »cars riddles » Louis Braille, the inventor of the alphabet for the blind, was ...?Blinded in both eyes as a result of an accident. Louis Braille was a French educator and inventor of a system of reading and writing for use by the blind or visually impaired. His system remains virtually unchanged to this day, and is known worldwide simply as braille. Blinded in both eyes as a result of an early childhood accident, Braille mastered his disability while still a boy. hard 47% blind from birthblind from birth16%blind in one eyeblind in one eye7%blinded in both eyes as a result of an accidentblinded in both eyes as a result of an accident47%visually impairedvisually impaired29%Created by: Tschuka. Statistics based on 322 answers in 2 languages »writing riddles » Play inventions quiz and see all the questions.