Why do exams always tell you to use a number 2 pencil? What happens if you don’t? Quick Questions explains!
Hosted by: Michael Aranda
Messages from our Subbable subscribers:
“Man, I was really holding out for that lab coat!” - Erik Avalos
“Flabbergasted lemmings elegantly circumnavigate unanticipated pandemoniums utilizing transparent aluminium hovercraft.” - Eric Svensson
“I thank God for your work, SciShow team!” - Jay J. Atherton
“Piret you are awesome and truly good friend” - Stiina Sild
“Practice. Don't wait until you are good at something to do it.” - Mike Chaput
“Thank you, Kim for my beautiful babies! Go Science!” - Jonathon Dunn
“Proud to support SciShow. You should too!” - Sharon Vaughn
“Rainy days a perfect!” - Viktorija Zuran
“Love you Scott. In our hearts forever ❤ UMW Theatre” - Sam Wilhelm
“Don't Forget to Be Awesome.” - Elise Logan
Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Lentz, John Szymakowski, Ruben Galvao, and Peso255.
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
Or help support us by becoming our patron on Patreon:
Looking for SciShow elsewhere on the internet?
The real reason is that Scangrade The Magnificent, a test grading/world domination device, uses lead from the number 2 pencil as it's energy source and after 50 years of testing his power will finally be great enough to take over the world.
Yes, I took selected art classes in high school and majored in Fine Arts and Visual Communications in college; so, I'm quite familiar with the different "H", "B" and "HB" grades of drawing pencils. Charcoal and pastel crayons have similar gradings for the relative darkness when applied to a given surface or how course or fine its grain is in reference to the former or how saturated or diffused the color is for the latter.
hahah nope my school's machines failed every student in school and we all used 2b pencils but the machines were really trashy at detecting the marks and the highest score anyone got was 54.
teachers had to remark every single student's answers for all the subjects but those low scores were still kept in our reports.
I hack the scantrone checker its not really electrical its surface censor try to shade all circle with the tip of the ballpen cover then pick a answer using a pencil the machine will register your answer is correct
What if I want to use a 9B pencil and a kneaded eraser? Why can't I do that? It's darker than a No. 2 pencil, and since I'm the only one at my school with enough sense to wear a pair of Artist gloves when I draw or write, no one can do the sameas me(smudgy lines. Very smudgy lines)
Pssshhh.. Once when I was in 7th grade we had to take a stupid muscle test in gym, I didn't have a number 2 pencil so I used my mechanical pencil, it still worked. So suck it teachers who freak out if you're using a mechanical pencil!
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.