Drink an espresso or take decongestants. Stimulants that work on the sympathetic nervous system can trigger your iris muscles to dilate your pupils. These include caffeine, ephedrine, pseudoephedrine, and phenylephrine. The last three are found in most over-the-counter decongestants. Can you change your pupil size on command? No one can enlarge their pupil on command. […]

In words, “one hundred percent” means the total 100% is 100100 , and since 100100=1 100 100 = 1 , we see that 100% means 1 whole. Is it %100 or 100%? It’s “a 100” because when pronounced “a hundred” or “a one hundred,” the word preceded by the article “a” begins with a consonant […]

Why can’t I save a video from messenger to my phone? Unfortunately, you cannot save videos that were shared directly from Facebook. The video must be uploaded by the sender via Facebook Messenger. This process is similar for iPhones and Android phones, although the buttons you’ll need to press may have slightly different labels. How […]

decimal system, also called Hindu-Arabic number system or Arabic number system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Are decimals always base 10? The base-ten system, which we call the “decimal” system, requires a total […]

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7, that is to say 10 represents 8 in decimal and 100 represents 64 in decimal. How do I find my octal number? In decimal to binary, we divide the number by 2, in decimal to […]

Pianissimo (pp) – very quiet. Piano (p) – quiet. Mezzo forte (mf) – moderately loud. Forte (f) – loud. Fortissimo (ff) – very loud. What does a PP mean in music? pp, standing for pianissimo and meaning “very quiet”. ff, standing for fortissimo and meaning “very loud”. What does pp mean in singing? pp, which […]

Spam messages often come from illegitimate email addresses, and may contain explicit or illegal content. These emails often use scare tactics, contain typos and misleading information, and are sent in bulk from an anonymous sender. Why am I all of a sudden getting spam emails? If you start receiving an increased amount of spam, with […]

Stop Unwanted Mail Sign up for the Data & Marketing Association’s mail preference service. This will remove your name from most national telemarketing, mail, and email lists. Register online for $2 or by sending the registration form and $3 fee through postal mail. Is there a do not call registry for email? Go to DoNotCall.gov […]

If a reputable company sent you a spam email, you can unsubscribe from that company’s messages by clicking the unsubscribe link at the bottom of the email. Taking this action might take your name off the list immediately, or it could take you to a website where you have to click a confirmation button. How […]

Spam messages often come from illegitimate email addresses, and may contain explicit or illegal content. These emails often use scare tactics, contain typos and misleading information, and are sent in bulk from an anonymous sender. Why am I suddenly getting spam emails? If you start receiving an increased amount of spam, with junk mail filters […]