Black Holes vs Supernovas
Infinite density that stops time vs explosions brighter than entire galaxies
🕳️ Warps space and time
💥 Brighter than a billion suns
💡 If you fell into a black hole, you'd be stretched like spaghetti
BOOK 5 OF 6
This vs That: Science SmackdownWhere knowledge is power (literally)
15 science and tech matchups from Black Holes vs Supernovas to Robots vs AI. Real physics, jaw-dropping scale, and universe-bending facts.
All 15 Matchups
What's Inside Science Smackdown
Every matchup comes with real stats, mind-blowing facts, and a vote checkbox. Here's the full lineup.
Volcanoes vs Earthquakes
2,000°F lava flows vs tectonic plates shifting an entire planet
🌋 1,350+ potentially active
🌍 500,000 detectable/year
💡 Yellowstone sits on a supervolcano that could cover the US in ash
Robots vs AI
Physical machines that build cars vs software that writes poetry
🤖 3.5 million industrial robots
🧠 Billions of calculations/sec
💡 The first robot was built in 1954 for a General Motors assembly line
Electricity vs Magnetism
Powers civilization at 670 million mph vs the force that makes compasses work
⚡ Lightning: 300 million volts
🧲 Earth itself is a magnet
💡 Electricity and magnetism are the same force — electromagnetism
DNA vs Viruses
3 billion base pairs that code everything about you vs particles that hijack cells
🧬 6 feet of DNA per cell
🦠 1 quintillion on Earth
💡 Uncoiled DNA from your body would reach the Sun and back 600 times
Telescopes vs Microscopes
See galaxies 13 billion light-years away vs see atoms 0.1 nanometers wide
🔭 JWST: 21-foot mirror
🔬 Electron: 0.1nm resolution
💡 The James Webb Telescope can detect a bumblebee on the Moon
Diamonds vs Meteorites
Formed 100 miles underground over billions of years vs rocks from outer space
💎 Hardest natural material
🪨 4.6 billion years old
💡 There's a planet made almost entirely of diamonds — 55 Cancri e
Acids vs Bases
Dissolves metal at pH 0 vs slippery substances that neutralize everything
🧪 pH 0 = strongest acid
⚗️ pH 14 = strongest base
💡 Your stomach acid could dissolve a razor blade
Extreme Heat vs Extreme Cold
Surface of the Sun at 10,000°F vs absolute zero at -459.67°F
🌡️ Sun core: 27 million °F
❄️ Absolute zero: -459.67°F
💡 The coldest place in the universe might be in a lab on Earth
Physics vs Chemistry
Explains the universe from quarks to galaxies vs builds every material you touch
🔬 Explains 95% of visible matter
🧫 118 elements create everything
💡 There are only 118 elements but they create millions of compounds
Speed of Light vs Speed of Sound
670 million mph through vacuum vs 767 mph through air
🛸 670 million mph
⏰ 767 mph (Mach 1)
💡 Nothing with mass can ever reach the speed of light
Nuclear Energy vs Solar Energy
Splits atoms for 24/7 power vs captures a star's output for free
☢️ 440 reactors worldwide
⚡ Sun: 173,000 TW to Earth
💡 One uranium pellet = energy of 17,000 cubic feet of natural gas
Steel vs Spider Silk
Builds skyscrapers vs pound-for-pound 5x stronger
🏗️ Most used metal on Earth
🕸️ 5x stronger than steel
💡 If spider silk were pencil-thick it could stop a Boeing 747
Internet vs Radio
5 billion users connected instantly vs the invention that changed the 20th century
🌐 5+ billion users (2024)
📡 Invented 1895
💡 Over 500 hours of video are uploaded to YouTube every minute
Ice Ages vs Global Warming
Mile-thick glaciers covering continents vs the fastest temperature rise in history
🧊 Last one ended 11,700 yrs ago
🔥 1.1°C rise since 1900
💡 During ice ages, sea levels dropped 400 feet — walk from Asia to Alaska
FAQ
Quick Answers
What age is this book for?
Written for curious minds of all ages. The facts and debates work great for family conversations — readers from 6 to 60+ love it.
Are the facts actually real?
Every single stat and fact is researched and fact-checked. We cite real data for every matchup.
Is there a winner for each matchup?
Nope — you decide. We give you the stats and facts for both sides with a vote checkbox at the end. There's no "right" answer.
How many books are in the series?
Six! Each with 15 unique matchups: Ultimate Showdown, Animal Kingdom, Gross & Weird, Food Fight, Science Smackdown, and Sports Showdown. 90 total matchups.
Is there a YouTube channel?
Yes! Every matchup gets an animated video breakdown with stats, facts, and a community vote. Subscribe to This vs That on YouTube.
The Full Series
Explore All 6 Books
Each book has a different theme, 15 unique matchups, and zero overlap.
Book 1
Ultimate Showdown
Sharks vs Dinosaurs, Pizza vs Tacos, Ninjas vs Pirates
See all 15 matchups →
Book 2
Animal Kingdom
Lion vs Tiger, Great White vs Orca, Honey Badger vs Wolverine
See all 15 matchups →
Book 3
Gross & Weird
Burps vs Farts, Cockroach vs Fly, Zombie Ants vs Vampire Bats
See all 15 matchups →
Book 4
Food Fight
Chocolate vs Vanilla, Pancakes vs Waffles, Hot Dogs vs Hamburgers
See all 15 matchups →
Book 6
Sports Showdown
Soccer vs Basketball, Boxing vs MMA, Swimming vs Running
See all 15 matchups →