Harvey S. Leff was an American physicist and educator, born on July 24, 1937. He was well-known for his research and expository work in the field of physics, particularly in areas related to energy, entropy, and thermodynamics, including concepts like Maxwell's demon. Leff is credited with introducing the 'energy spreading' metaphor, which aids in understanding entropy change. He passed away on December 30, 2023, at the age of 86.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 349 days away.
Death Anniversary
Next death anniversary is 143 days away.
Death Date
Place of Birth
Time Zone - America/Chicago (5:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Harvey
battle-worthy, strong warrior
Read Full Harvey Name AnalysisJuly 24, 1937 Facts
Generation Group
Harvey S. Leff belongs to the Silent Generation group.
Place of Birth: Chicago
Educated At: Illinois Institute of Technology | Northwestern University | University of Iowa
Occupation: university teacher | physicist
Employers: California State Polytechnic University, Pomona
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.

Ephemeris for July 24, 1937
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on July 24, 2025 | Secondary Progressions for July 24, 2025 |
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Sun | 1 Leo 20 | 2 Leo 3 | 26 Libra 53 |
Moon | 15 Aquarius 17 | 0 Leo 46 | 7 Taurus 42 |
Mercury | 18 Leo 7 | 13 Leo 53 | 20 Libra 58 |
Venus | 17 Gemini 43 | 22 Gemini 34 | 1 Libra 15 |
Mars | 24 Scorpio 9 | 21 Virgo 51 | 13 Capricorn 59 |
Jupiter | 21 Capricorn 4 | 10 Cancer 8 | 19 Capricorn 28 |
Saturn | 5 Aries 12 | 1 Aries 42 | 29 Pisces 57 |
Uranus | 13 Taurus 26 | 0 Gemini 42 | 12 Taurus 18 |
Neptune | 17 Virgo 1 | 2 Aries 3 | 20 Virgo 3 |
Pluto | 28 Cancer 24 | 2 Aquarius 35 | 0 Leo 6 |
Rahu | 12 Sagittarius 41 | 20 Pisces 39 | 8 Sagittarius 2 |
Ketu | 12 Gemini 41 | 20 Virgo 39 | 8 Gemini 2 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
