MACEDONIO See also:

• MACEDONIO MELLONI (1798-1854)

MELLONI (1798-1854)  , See also:

• ITALIAN

Italian physicist, was See also:

• BORN, IGNAZ, EDLER VON (1742–1791)

born at See also:

• PARMA

Parma on the See also:

• LATH (0. Eng. laett, Mid. Eng. lappe, a form possibly due to the Welsh llath; the word appears in many Teutonic languages, cf. Dutch lat, Ger. Latte, and has passed into Romanic, cf. Ital. latta, Fr. latte)

lath of See also:

• APRIL

April 1798 . From 1824 to 1831 he was See also:

• PROFESSOR (the Latin noun formed from the verb profiteri, to declare publicly, to acknowledge, profess)

professor at Parma, but in the latter See also:

• YEAR

year he was compelled to See also:

• ESCAPE (in mid. Eng. eschape or escape, from the O. Fr. eschapper, modern echapper, and escaper, low Lat. escapium, from ex, out of, and cappa, cape, cloak; cf. for the sense development the Gr. iichueoOat, literally to put off one's clothes, hence to sli

escape to See also:

• FRANCE
• FRANCE, ANATOLE (1844– )

France, having taken See also:

• PART

part in the revolution . In 1839 he went to See also:

• NAPLES
• NAPLES (Ital. Napoli, and Lat. Neapolis)
• NAPLES, KINGDOM OF

Naples and was soon appointed director of the See also:

• VESUVIUS (also Vesevus in ancient poets)

Vesuvius See also:

• OBSERVATORY

observatory, a See also:

• POST

post which he held until 5848 . See also:

• MELLONI, MACEDONIO (1798-1854)

Melloni received the See also:

• RUMFORD, BENJAMIN THOMPSON, COUNT (1753-1814)

Rumford See also:

• MEDAL (Fr. medaille, from Lat. metallum)

medal of the Royal Society in 1834 . In 1835 he was elected correspondent of the See also:

• PARIS
• PARIS (also called ALEXANDROS)
• PARIS, ALEXIS PAULIN (1800-x881)
• PARIS, BRUNO PAULIN GASTON (1839-1903)
• PARIS, FRANCOIS DE (169o-1727)
• PARIS, LOUIS PHILIPPE ALBERT
• PARIS, TREATIES OF (1814-1815)

Paris See also:

• ACADEMY, GREEK
• ACADEMY, ROYAL

Academy, and in 1839 a .See also:

• FOREIGN

foreign member of the Royal Society . He died at See also:

• PORTICI

Portici near Naples of See also:

• CHOLERA (from the Gr. Xo)du, tile, and Map, to flow)

cholera on the lath of See also:

• AUGUST (originally Sextilis)

August 1854• Melloni's reputation as a physicist rests especially on his discoveries in radiant See also:

• HEAT (0. E. haktu, which like " hot," Old Eng. hat, is from the Teutonic type haita, hit, to be hot; cf. Ger. hitze, heiss; Dutch, hitte, heet, &c.)

heat, made with the aid of the thermomultiplier or See also:

• COMBINATION (Lat. combinare, to combine)

combination of thermopile and See also:

• GALVANOMETER

galvanometer, which, soon after the See also:

• DISCOVERY

discovery of See also:

• THERMOELECTRICITY

thermoelectricity by T . J . Seebeck, was employed by him jointly with L . See also:

• NOBILI, LEOPOLDO

Nobili in 1831 . His experiments were especially concerned with the See also:

• POWER [WILLIAM GRATTAN] TYRONE (1797-1841)

power of transmitting dark heat possessed by various substances and with the changes produced in the heat rays by 'passage through different materials . Substances which were comparatively transparent to heat he designated by the See also:

• ADJECTIVE (from the Lat. adjectives, added)

adjective " diathermane," the See also:

• PROPERTY

property being " diathermaneite," while for the heat-tint or heat-coloration produced by passage through different materials he coined the word " diathermansie." In See also:

• ENGLISH

English, however, the terms were not well understood, and " diathermancy," was generally used as the See also:

• EQUIVALENT

equivalent of " diathermaneite." In consequence Melloni about 1841 began to use " diathermique " in See also:

• PLACE (through Fr. from Lat. platea, street; Gr. IrAar6s, wide)

place of " diathermdne," " diathermasie " in place of "diathermaneite," and " thermocrose " for " diathermansie." His most important See also:

• BOOK

book, La thermocrose au la coloration calorifique (vol. i., Naples, 1850), was unfinished at his See also:

• DEATH

death . He studied the reflection and polarization of radiant heat, the See also:

• MAGNETISM
• MAGNETISM, TERRESTRIAL

magnetism of rocks, electrostatic See also:

• INDUCTION (from Lat. inducere, to lead into; cf. Gr. ilrayu yli)

induction, daguerrotypy, &c .