First, astronomers made history when they detected a gravitational wave from two black holes merging. Then it was two neutron stars. Now, astronomers believe they’ve detected a gravitational wave coming from another first-time discovery: a black hole swallowing a neutron star.
Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound search. Full descriptions from write-up sources.
Click on the source below to launch the table
Source: Dynamic Periodic Table
The Perseid meteor shower, which can produce upwards of 100 meteors per hour in a dark-sky location, is happening now. Here’s what you need to know. Continue reading
Who would have ever thought that a plastic bag, some water, and a few pencils would have adults screaming with fear? Learn how to poke holes in a plastic bag filled with water without spilling a drop. Well, that’s the theory you’re going to test… and it’s wise to practice your liquid trick over the sink. It’s a cool way to learn about the chemistry of polymers. Continue reading
Did you know that you can cause a packet of ketchup to rise and fall on command in a bottle of water? People might even think that you have the ability to move objects with your mind! The truth is that you don’t have the gift of telekinesis. You actually just know a really cool science trick! Continue reading
In 1962, President John F. Kennedy declared, “We choose to go to the moon.” Just seven years later, the first steps were taken on the lunar surface by Apollo astronauts Neil Armstrong and Buzz Aldrin. Continue reading
Trees can weigh hundreds or even thousands of tons, but where do they get this mass from? A few common answers are: the soil, water, and sunlight. But the truth is the vast majority of a dry tree’s mass comes from the air – it originated as carbon dioxide
Susanne Åkesson, Professor of Evolutionary Ecology at Lund University in Sweden, has been awarded the prestigious Ig Nobel Prize. The prize, which she shares with six other researchers from Hungary and Spain, was presented to them for their discovery that white horses aren’t particularly bothered by blood-sucking horse-flies. Continue reading