Back to School - Slashdot User

Comment Back to School (Score 1) 243

by Back to School on Saturday January 21, 2017 @02:31PM (#53711913) Attached to: What is your home ISP data cap (per month)?

It's school time again! You're probably feeling excited and maybe a little sad that summer is over. Some kids feel nervous or a little scared on the first day of school because of all the new things: new teachers, new friends, and maybe even a new school. Luckily, these "new" worries only stick around for a little while. Let's find out more about going back to school.

Submission + - The 32-Bit Dog Ate 16 Million Kids' CS Homework

Submitted by theodp on Saturday January 21, 2017 @11:06AM

theodp writes: Tech backed-Code.org explains in a blog post that it encountered technical difficulties Friday that temporarily made the work of 16 million K-12 students who have used the nonprofit's Code Studio offering disappear. Code.org CTO Jeremy Stone gave the kids an impromptu lesson on the powers of two with his explanation of why The Cloud ate their homework: "This morning, at 9:19 am PST, coding progress by students stopped saving on Code Studio, and the issue briefly brought the Code Studio site down. We brought the site back up shortly thereafter but student progress was still not being saved, and instead students saw an outdated message about the Hour of Code from December. [...] The way we store student coding activity is in a table that until today had a 32-bit index. What this means is that the database table could only store 4 billion rows of coding activity information. We didn’t realize we were running up to the limit, and the table got full. We have now made a new student activity table that is storing progress by students. With the new table, we are switching to a 64-bit index which will hold up to 18 quintillion rows of information. On the plus side, this new table will be able to store student coding information for millions of years. On the down side, until we’ve moved everything over to the new table, some students’ code from before today may temporarily not appear, so please be patient with us as we fix it."

Journal Journal: Linux QL-500 Label Printer Update

Journal by chill on Friday January 20, 2017 @03:49PM

While the Brother P-Touch QL-500 is recognized out of the box by Ubuntu, it doesn't really work. Do the following to fix:

Submission + - NASA eyes $10 Quintillion asteroid (usatoday.com)

Submitted by kugo2006 on Friday January 20, 2017 @01:17PM

kugo2006 writes: NASA announced a plan to research 16 Psyche, an asteroid potentially as large as Mars and primarily composed of Iron and Nickel. The rock is unique in that it has an exposed core, likely a result of a series of collisions, according to Lindy Elkins-Tanton, Psyche's principal investigator. The mission's spacecraft would launch in 2023 and arrive in 2030.

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