Paper Airplane Flight Challenge - Science Friday
WEBJun 18, 2021 · Paper Airplane Data Collection Worksheet. Before we start building, we need to prepare to test all of our designs. Find a space in your home where paper airplanes can fly safely. Grab a ruler and use tape to mark every 12 inches along the floor. Use the Paper Airplane Data Collection Worksheet to record the distance of multiple airplane flights.
How Sexual Intercourse Was Invented, 385 Million Years Ago
WEBJun 3, 2022 · Our oldest evidence of penetrative intercourse is about 385 million years old and comes in the form of fossilized remains of the way too aptly named Microbrachius dicki. I know. I know! But believe it or not, M. dicki got its rather pointed moniker from Scottish baker-turned-botanist Robert Dick in the nineteenth century. Mr.
Seeing The Patterns In Sound - Science Friday
WEBNov 7, 2016 · Vibrations of D. Credit: Louviere + Vanessa. In the late 18 th century, German physicist and musician Ernst Chladni demonstrated how vibrations could be used to create striking imagery. By spreading fine sand across the top of a metal plate and running a violin bow alongside, Chladni showed that the sand would settle into distinct patterns, depending on the frequencies of the sound waves ...
Design a Better Vortex Cannon - Science Friday
WEBMar 24, 2016 · An air vortex cannon works primarily by applying force quickly and efficiently to air molecules contained in a semi-enclosed space. When the stretchy balloon surface at the back of the cannon snaps forward, it collides directly with air molecules, accelerating them towards the opening of the cannon and setting off a chain reaction of high-speed collisions with other air molecules and the sides ...
How Oppenheimer’s Bombs Compare To Today’s Nukes - Science …
WEBAug 4, 2023 · A mushroom column from the Trinity test in 1945. Credit: Los Alamos National Laboratory/Flickr/CC BY-NC-ND 2.0 On the day the film Oppenheimer came out, Science Friday discussed the history of the Manhattan Project, including the legacy of the Trinity Test, where the world’s very first nuclear weapon was detonated in the desert of New Mexico. We also heard from a survivor of the Hiroshima ...
Shake Your Silk-Maker: The Dance of the Peacock Spider
WEBSep 19, 2014 · This video is part of the Hair-Raising Science spotlight. With their ornately colored bodies, rhythmic pulsations, and booty-shaking dance moves, male peacock spiders attract the attention of spectating females as well as researchers. One such animal behavior specialist, Madeline Girard, collected more …
Relearning The Star Stories Of Indigenous Peoples - Science Friday
WEBSep 6, 2019 · Wilfred is Cree, also known as Ininew, one of Canada’s largest First Nations groups. He’s telling us stories he’s gathered from Indigenous communities across Manitoba—like how the Star Woman saw Earth from another dimension, fell through the hole in the sky, and became the first human on this …
A New Organ That Could Explain The Mysteries Of The Human Body
WEBMar 30, 2018 · The interstitium. Credit: J. Gregory, Mount Sinair Health System 2016. Scientists have discovered a new piece of human anatomy we never knew we had—a layer of connective tissue that exists all over the body. It sits below the skin’s surface, lining the digestive tract, the lungs, and even our blood vessels.Researchers say it could be the missing link the medical community needs to move ...
Gravity And Centripetal Force In Our Solar System - Science Friday
WEBOct 21, 2022 · Every planet in the solar system is affected by multiple forces. The gravity of the Sun pulls planets toward the center of the solar system. The inertia from the creation of the planets sent them flying in a straight line, perpendicular to the force of the Sun’s gravity. When these forces combine, they result in centripetal forces that push our planets in their circular motion around the Sun.
How Five Elements Define Life On Earth - Science Friday
WEBNov 3, 2023 · Credit: Shutterstock with added elements. Over 99% of a human cell is made up of just five elements: carbon, hydrogen, oxygen, nitrogen, and phosphorus. That same elemental mix exists, with minor variations, in every other living thing on Earth. In his new book, Elemental: How Five Elements Changed Earth’s Past and Will Shape Our Future ...