Abstract: We demonstrate the use of superimposed fiber Bragg gratings (FBGs) operating in reflection as amplitude and phase filtering stages for multiplying the repetition rate of a given optical ...

A confused dad has been left stumped by his 10-year-old son’s math homework, so he’s turned to the internet for help. The American father took to Reddit after being left puzzled by a multiple-choice ...

Click Here to Share or Save. Ever feel like you’re constantly searching for just one more resource that might finally help your kid “get it” when it comes to reading? Say hello to your new BFFs: Free ...

Click Here to Share or Save. I remember one of K’s early IEP meetings. It may have even been an IFSP meeting. But I remember the person saying that they wanted K to not only be able to count to 5 (he ...

Consider the following rule: Start with any two-digit number, then repeatedly multiply the digits together until the result is a one-digit number. For example: 84 ⇨ 32 ⇨ 6, or 97 ⇨ 63 ⇨ 18 ⇨ 8. What ...

Two players take it in turns to roll two cubes customised with the numbers 5 to 10 and 7 to 12 and multiply both numbers together. If the total matches one of the numbers inside their pre-chosen ...

I have investigated the symptoms of this in some detail but have not tried to find the cause: In short it seems like matrix multiplications with largeish numbers fails inconsistently in windows, and ...

A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass. An illustration of a magnifying glass.

The designers for Monte Vista Elementary School’s proposed outdoor classroom had some key questions to answer: What materials could they use while staying under the district’s $10,000 budget? How much ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...