usando il software "matematico" WOLFRAMALPHA
Roman Empire
 | Ukraine | Ukrainian | Ukraine regions |
 |
Genova coordinate
La Spezia - Imperia
caves in Sicilia
sun, May 7, 2012, Genoa, Italy
weather today
temperature Genoa 2021
blue+yellow
fontina 100 g
weight 1 cup of flour, 1 cup of milk, 1 cup of tea
brain
puma, lion, cat
growth curve fir tree (abete)
SI prefix
 | libra=? kg | foot=? cm | can=? l | pint=? l | Kelvin=? Celsius |
chemical elements | chemistry
caffeine
 | molecular mass of water |
 | atomic mass of He |
Cu + H2SO4 -> CuSO4 + H2O + SO2
F# G G A G C B G G A G D C | music theory | intervals C3 Eb3 Bb3 D4 G4 C3 Eb3 Bb3 D4 G4
Ada Lovelace | Anne Isabella Byron | Archimedes | Bertrand Russell | Enrico Fermi | Euler | Newton | Galileo Galilei | Godel | Pythagoras
Giotto | artworks of Giotto | ... Leonardo | ... Raffaello | ... Monet | ... Renoir | ... Van Gogh | ... Kandinsky | ... Matisse | ... Klee | ... Picasso | ... Modigliani | artworks of Giorgio De Chirico
mother's brother's son (il figlio del fratello della madre) | father's mother's brother's son (il figlio del fratello della madre del padre)
growth curve female
3 dice
laws of physics
Second law of thermodynamics
length, time, mass, volume, density, acceleration, force, energy, electric current, magnetic moment
weight measurement devices
mechanical work calculator
stopping distance | pendulum | spring pendulum | coupled pendulum | ...
visible light
concave mirror | convex mirror
play 800 Hz sine wave | play 640 Hz sawtooth wave | play 500 Hz square wave
music theory | F# G G A G C B G G A G D C vedi/see
elastic collision
 | 7500 ohm resistor | vedi/see |
parallel RC circuit, R=100ohm, C=50microF
cross product vedi/see
(2,0,4)x(1,3,1) | (2,0,4)+(1,3,1) | (2,0,4).(1,3,1) | || (2,0,4) ||
(-12, 2, 6) {3, 3, 5} 6 2*sqrt(5)
(1,3,-2) in spherical coordinates | spherical coordinates
Klein bottle image | batman lamina