Monday, February 24, 2020

Romanticism and Classical Music Styles Essay Example | Topics and Well Written Essays - 500 words

Romanticism and Classical Music Styles - Essay Example To find out more concerning the music of the two periods, we shall in this essay focus on Haydn’s Symphony No. 40 in F major and Beethoven’s Symphony No. 9 in D major. Symphony No. 40 in F major is composed of almost the same properties as symphony no. 13. This period marked the final time Haydn made use of fugue in his work of symphonies. Important to note also is the tempo mark, andante, which ensured that a passage never rose above the piano. Violoncellos were also being doubled by the violas and the second violins doubling the first, all being directed by Haydn to play ‘sempre staccato†. In a recording by Fischer, he uses both the versions of the trio that includes: bassoon, oboes and horns and the other, horns, oboes and strings. This is because he finds it impossible to figure out the one he liked most. In his original presentation, he uses the horns, oboes and strings and bassoon, oboes and horns in the in his areas of repeat. As for the symphony no. 9 D major, it consisted of a very large orchestra, an alto-tenor-bass solo quartet and a choir. At its beginning, what can be heard is a frightful combination of notes that is very l oud, and equally acknowledges the themes used in previous movements. The section producing the bass sound comes up with music that sounds as if it is being recited.

Saturday, February 8, 2020

Energy Security Research Paper Example | Topics and Well Written Essays - 1500 words - 1

Energy Security - Research Paper Example However, there should be development of alternative ‘clean’ energy sources, which do not rely on fossil fuels and which have a tolerable environmental effect in order to meet the raising global demands for energy and to allow for the depletion of fossil fuel supplies in the future (332). For effectively use of renewable sources, there is a need of consistent ways of storing energy for example, rechargeable batteries and high-temperature superconductivity as well as developments in hydrogen storage (Dresselhaus and Thomas, 333). Due to high demands, the strained global energy systems has caused high prices hence increasing global anxiety over the world’s ability to meet energy needs. It is evident that there is a challenge trying to administer the growing complexity of an energy-interdependent world while on the other hand trying to meet environmental, security, and economic goals. This necessitates a more advanced energy policymaking approach one that fully values the complex nature of energy security, the need to manage the trade-offs inherent in energy policy decision-making, and the interdependencies of global markets (Verrastro and Ladislaw, 95). On the other hand, each energy source has some adverse effects. Fossil fuels processes emit carbon dioxide, and perhaps other contaminants, such as nitrogen oxides, sulphur oxides and ash. There is production of radioactive fission products in the nuclear plants. While dams and large lakes are needed for hydroelectric plants, large areas are necessary f or solar and wind energy although they are limited geographically. Then again, geothermal sources are restricted to very few locations and those methods using small temperature gradients need very large heat-exchanger areas because of the low thermal efficiencies in the earth or oceans (Dresselhaus and Thomas, 332). One of the alternative energy supplies that the globe can rely on is solar