Spencer Ferguson Silver III (February 6, 1941 - May 8, 2021) was an American chemist and inventor known for his work with adhesives. He is credited with developing the adhesive used by Arthur Fry to create Post-it Notes for the 3M Company. Born in San Antonio, Texas, Silver earned a Bachelor of Science in Chemistry from Arizona State University in 1962 and a PhD in Organic Chemistry from the University of Colorado in Boulder in 1966. He later served as a chief chemist at 3M's Central Research Laboratories.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 220 days away.
Death Anniversary
Next death anniversary is 53 days away.
Death Date
Place of Birth
Time Zone - America/Chicago (6:0 W)
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Spencer
steward, dispenser
Read Full Spencer Name AnalysisFebruary 6, 1941 Facts
Generation Group
Spencer Silver belongs to the Silent Generation group.
Place of Birth: San Antonio
Place of Death: Saint Paul
Cause of Death: ventricular tachycardia
Educated At: University of Colorado Boulder | Arizona State University
Occupation: chemist | inventor
Employers: Myasishchev 3M | 3M
Awards Received: ACS Award for Creative Invention | National Inventors Hall of Fame
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 February 6, 1941
Note: Moon position is location and time sensitive.| Planet | Position (Tropical, Western) | Transits on February 6, 2025 | Secondary Progressions for February 6, 2025 |
|---|---|---|---|
| Sun | 17 Aquarius 35 | 18 Aquarius 12 | 10 Taurus 57 |
| Moon | 12 Gemini 33 | 6 Gemini 35 | 8 Cancer 12 |
| Mercury | 4 Pisces 50 | 16 Aquarius 10 | 5 Taurus 45 |
| Venus | 29 Capricorn 48 | 1 Aries 44 | 14 Taurus 13 |
| Mars | 22 Sagittarius 19 | 18 Cancer 58 | 20 Aquarius 9 |
| Jupiter | 7 Taurus 56 | 11 Gemini 17 | 24 Taurus 5 |
| Saturn | 8 Taurus 49 | 17 Pisces 59 | 17 Taurus 16 |
| Uranus | 22 Taurus 11 | 23 Taurus 18 | 25 Taurus 17 |
| Neptune | 27 Virgo 18 | 28 Pisces 8 | 25 Virgo 14 |
| Pluto | 2 Leo 52 | 2 Aquarius 14 | 2 Leo 5 |
| Rahu | 4 Libra 13 | 29 Pisces 32 | 29 Virgo 46 |
| Ketu | 4 Aries 13 | 29 Virgo 32 | 29 Pisces 46 |
Chandra Kundali (Equal House, North Indian Diamond Chart)
