Why did they change the police siren sound? This difference in the sound of the siren (or the horn of a car or a train) is due to a scientific phenomenon called the Doppler Effect. Like many other phenomena, the Doppler effect is named after a scientist, Christian Doppler, who is credited with its discovery….
Category: Interesting
Does it make sense to insulate an unheated garage?
Does it make sense to insulate an unheated garage? Engineering studies have shown that replacing a non-insulated garage door with an insulated one can reduce heat loss through the garage by more than 70\%. Even if your garage is unheated that could mean a garage that’s warmer by as much as 20 degrees Fahrenheit on…
Who have received Nobel Prize twice?
Who have received Nobel Prize twice? Two laureates have been awarded twice but not in the same field: Marie Curie (Physics and Chemistry) and Linus Pauling (Chemistry and Peace). Who won the Nobel Prize twice in different fields? Linus Pauling is the only person to have been awarded two unshared Nobel Prizes – the 1954…
What bands were popular during the 80s?
What bands were popular during the 80s? Bands such as AC/DC, Queen, Def Leppard, Kiss, Mötley Crüe, Bon Jovi, Quiet Riot, Scorpions, Europe, Ratt, Twisted Sister, Poison, Dokken, Whitesnake, and Cinderella were among the most popular acts of the decade. Who is the most successful rock band in history? the Beatles As of 2017, based…
Can you get into a good college without honors classes?
Can you get into a good college without honors classes? If you asked the question “Can I Get Into A Good School Without Honors or APs?” because your school doesn’t offer any of these courses, don’t worry. As long as you are taking the hardest classes and maintaining good grades in your classes, you are…
Is there a difference between Hangouts and Google Hangouts?
Is there a difference between Hangouts and Google Hangouts? Google meet is provided to the users under GSuite,, whereas Hangouts is available to anyone having an email account on Gmail. The features are more customized towards which customers they are built for. What’s so special about the Hangout app? Google Hangouts makes it easy to…
Will T-Mobile coverage improve with Sprint?
Will T-Mobile coverage improve with Sprint? If and when there are changes in your plan structure or billing, you’ll be informed by T-Mobile and given alternative options. According to T-Mobile’s website, Sprint customers can use its “expanded 5G network.” That means as a Sprint user, your coverage and data speeds should feel significantly better. Is…
How many Georgians live in UK?
How many Georgians live in UK? Geographic distribution Country/territory People born in Georgia (of any ethnicity) United Kingdom 2,187 (2013) Sweden 1,437 (2017) Switzerland 935 (2017) Estonia 910 (2017) How many Georgians are in Germany? Ethnic Georgians in Germany number between 4,500 and 5,000. These figures do not include a number of Georgians from Iran…
What do Americans call the country?
What do Americans call the country? Americans have been calling their country “America” for more than two centuries. They will and should continue. Deal with it. What do they mean when they say country? Full Definition of country (Entry 1 of 2) 1 : an indefinite usually extended expanse of land : region miles of…
Do electrons in a wire move at the speed of light?
Do electrons in a wire move at the speed of light? It’s the electromagnetic wave rippling through the electrons that propagates at close to the speed of light. The dimensions of the wire and electrical properties like its inductance affect the exact propagation speed, but usually it will be around 90 per cent of the…