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How to play forte-piano chord on piano?

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Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite In Beethoven's Pathetique , how do you play the fortepiano chords in the third movement (rondo)? I can easily do this on a wind instrument by changing wind speed, but on piano, I have no idea how to play it. I tried using the 'delayed pedal' method where you strike the chord as if it were staccato and pressing the damper pedal a few moments later, but that doesn't give me a good result because it is very hard to time accurately, leading to chords that are often too loud or soft. piano chords technique practice dynamics share | improve this question asked 3 hours ago David Zhou 11 1 New contributor David Zhou is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment  |  up vote 2 down vote favorite In Beethoven's Pathetique , how do you play the fo...

Human power calculated from food instake is 100 Watts but Stefan Boltzmann power radiated from body temp is 1000 Watts? What am I doing wrong?

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Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite On average, human consumes around 2000 kilocalories per day. This converts to roughly 2000000 calories / 86400 seconds or around 100 joules / second giving roughly 100 Watts. But if you use human's body temperature of 310 kelvins degrees, Stefan Boltzmann gives Power radiated by a human, with surface area of roughly 2m^2, emissivity ~ 1, to be 1000 Watts. $$P = e sigma A T^4$$ What am I doing wrong? thermodynamics biophysics share | cite | improve this question edited 9 hours ago DanielSank 16.5k 4 49 78 asked 11 hours ago Azerty 8 3 It is likely in your conversion to joules, you need to multiply by 4.18 in the conversion of calories to joules – Triatticus 10 hours ago 3 This is exactly why I wear a sweater when it is cold outside. – safesphere 10 hours ago This means that you shoul...