The Foucault pendulum which was displayed for many years in the Smithsonian's National Museum of American History was removed in late 1998 to make room for the Star-Spangled Banner Preservation ...

Now, we know what you’re thinking — he must have used some kind of PLL to give an electromagnetic “kick” to the bob to trim the pendulum’s period. Good guess on the PLL, but the trimming ...

It’s an electromagnet pendulum analog circuit. Whether you’re building it, or just studying the schematics, this is a fun way to brush up on the non-digital side of the craft. The pendulum is ...

From the discovery of gravity to the first mission to defend Earth from an asteroid, here are the most important physics ...

It’s time to crunch some numbers. You can calculate an investment’s “payback period” by using this simple formula: For instance, suppose that your business invests $50,000 in a new project ...

It's a mathematical expression of the insight that excess returns over a period of time may signify ... The risk-free rate was initially used in the formula to denote an investor's hypothetical ...

When I get together with my girlfriends we talk about all kinds of things. When I started my period that's who I wanted to talk about it. They could answer a lot of questions that I had ...

Specifically, the formula looks like the following, where you're taking the square root of the variance over a given period. Because it's a commonly used financial metric, some investment analysis ...

We've tracked the prices of a selection of first infant formula brands (and one own-label brand) to find out, on average, which work out the cheapest per feed and which have seen the largest price ...

The electoral pendulum orders seats from the most marginal to safest based on results of the last election. Click on the electorate name for a for a full profile of each electorate and its candidates.

During this period, oceans formed as land shifted and broke out of one big supercontinent into smaller ones. 3 min read Continents were on the move in the Cretaceous, busy remodeling the shape and ...

Rearranging the formula for the circumference of a circle makes the radius the subject. Start with the new subject and write out the function machine for the formula, showing each operation step ...