A penny is not what you think. Indeed, from 1793 to 1837, a cent was pure copper. But newer pennies are have a much different composition.
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Arsip Blog
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2016
(4014)
-
▼
Juni
(335)
- Plague: A Scourge From Ancient to Modern Times
- Ayurvedic Herbal Supplements Caused Man's Lead Poi...
- Dog 'Kisses' Give Woman Severe Infection
- Science Finds a Way to Overcome Life's Regrets
- GoPro's Latest VR Video Lets You Swim with Sharks
- The Chemistry Behind a Sparkler's 4th of July Magic
- Fixing a Hole: Ozone Layer Healing, Evidence Shows
- Comet Probe Will Be Destroyed - Incredible Records...
- Tomb with a View: Ancient Burial Sites Served as '...
- Here's a Giant List of the Strangest Medical Cases...
- Polly Says What?! Should Parrots Testify at Murder...
- 'Breast Cancer Gene' BRCA1 Linked to Aggressive Ut...
- Volcano Forecast? Crystals Could Predict Eruptions
- Jupiter's Auroras 'Dance' In Hubble Time-Lapse | V...
- Ancient Shrine That May Hold Buddha's Skull Bone F...
- Photos: Ancient Stupa Holding Bone of Buddha Disco...
- Facts About Aardvarks
- Mount Vesuvius & Pompeii: Facts & History
- Ikea's Dresser Recall: 7 Tips to Prevent Furniture...
- Half of Adélie Penguins Could Be Wiped Out by Glob...
- Scorpion Architects Build Lairs with Porches and M...
- Newfound Human Species Suggests Africa Was Evoluti...
- 7 Unanswered Questions About Sharks
- Saturn Moon Enceladus' Plumes May Resemble Earth's...
- Butter May Not Be Bad for Your Heart
- Female Komodo Dragon Saved After Her Eggs Burst
- Photos: Modeling Scorpions' Lairs in 3D
- Jewish Escape Tunnel Uncovered at Nazi Massacre Site
- Photos: Escape Tunnel at Holocaust Death Site
- For Kids with Eczema, 'Soak and Smear'
- The Renaissance: The 'Rebirth' of Science & Culture
- Who Trims? Pubic Hair Grooming Common Among Young ...
- Real-Life Holodeck? 'Star Trek' Tech Uses VR to So...
- Lab-Grown 'Living' Bones Could Yield Customized Im...
- Light Pollution Is Waking Trees Up Early for Spring
- The Renaissance: The 'Rebirth' of Science & Culture
- Facts About Capybaras
- Is There a Link Between Bacteria and Breast Cancer?
- California Has Way More Water Than Thought
- 6,000 Feet Under: Whale Sharks' Deepest Dives Dete...
- Record-Breaking Electric Car Goes from 0 to 62 Mph...
- Pat Summitt's Death: Why Alzheimer's Disease Is De...
- Photos: Geologists Home-brew Lava
- Geologists Create Home-Brew Lava
- Odd 'Dark Hydrogen' May Lurk Within Jupiter, Other...
- Pompeii Photos: Archaeologists Find Skeletal Remai...
- Photos: Mummified Bird Wings Preserved in Amber
- Mummified, 99-Million-Year-Old Wings Caught in Amber
- More Victims of Vesuvius Eruption Found Near Pompeii
- Aahhhhh! 5 Scary Shark Myths Busted
- Tau Day: Should Pi Be Downgraded?
- Aliens Attack! Invasive Lionfish Arrive in Mediter...
- Facts About Tapirs
- Huge Cache of Ancient Helium Discovered in Africa'...
- How to Fix 9 Common Skin Problems
- Gateway to Ancient Greek God's Compound Uncovered?
- Jupiter Spied By One Of Earth's Largest Telescopes...
- Supreme Court Abortion Ruling Explained
- Can You 'Catch' Stress in a Classroom? Science Say...
- Omega-3 Fatty Acids Reduce Risk of Fatal Heart Attack
- Freeloading Butterflies Get Away with Theft
- Butterfly Discovery (Photos)
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- Morning Milky Way Shines Over Summer Triangle in S...
- YouTube's SciShow: Exploring the Unexpected
- Is It Ethical to Purchase Human Organs?
- How Much of the Ocean Is Whale Pee (and Worse)?
- Magnets Make People Think of Love, Study Finds
- Pretty Risky: Men Would Skip Condoms with Attracti...
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- China Planning Underwater Great Wall of Robots
- Ancient Insects Carried Corpses of Prey for Camouf...
- Where's the Exit? Python Caught in Circle of Own M...
- Robot Cars Tear Up Track to Test Hazard Response
- Pretty as a Princess: Disney Movies May Be Making ...
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- What Brexit Vote Means for Science (in 140 Charact...
- SETI Eavesdrops on Nearby Star in Smart Alien Hunt
- The Kilogram May Be Redefined
- Sleeping Black Hole Awakens to Devour Doomed Star
- What Is a Paramecium?
- No Flu Nasal Spray Next Season: Why Is This Vaccin...
- Caribbean Sea's Curious 'Whistle' Detected from Space
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- Tallest Mountain in US Arctic Found Using New Tech...
- '3Doodler' Pen Lets You Draw 3D-Printed Creations ...
- San Andreas Fault 'Does the Wave,' New Research Finds
- Ocean 'Whistle' Can Be 'Heard' In Space | Video
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- Why Rescues in Antarctica Are a Dangerous Business
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