Category: Popular articles

How many orbitals can a hydrogen atom have? If you are asking how many energy levels, or orbitals, there are in a hydrogen atom, then the answer is infinity. There is no upper bound to the principle quantum number n. A stable hydrogen atom has its electron in only one state — its ground state:…

Does USPS have bereavement leave? Employees may use up to 3 workdays of annual leave, sick leave, or leave without pay to make arrangements necessitated by the death of a family member or attend the funeral of a family member. For employees opting to use available sick leave, the leave will be charged to sick…

How often does the moon cross the meridian? Since the celestial sphere appears to turn 1 degree about every 4 minutes, the Moon crosses our celestial meridian about 13.2 x 4 = 52.8 minutes later each day. Why can’t you see the moon every night? There’s a reason there isn’t a full moon every night…

How would you describe Helvetica? Helvetica is one of the most popular typefaces in the world. Technically speaking, it’s a sans serif Grotesque typeface, inspired by and based on the Akzidenz-Grotesk typeface created by Berthold around 1898. Helvetica has been featured by MOMA in New York and has received a number of awards and worldwide…

Who were the samnites in Italy? The Samnites were an ancient Italic people who lived in Samnium in south-central Italy. They became involved in several wars with the Roman Republic until the 1st century BC. An Oscan-speaking people, the Samnites probably originated as an offshoot of the Sabines. How did the Sabines influence the Romans?…

Is it bad if someone knows your passport number? Your passport number can be used to steal your identity. While your passport number alone may not be that useful in itself, it could still be used by someone in fraudulent transactions by providing your passport number instead of giving theirs. Can they steal your identity…

What is the relationship between electrons and leptons? The best known of all leptons is the electron. ). Electrons have the least mass of all the charged leptons. The heavier muons and taus will rapidly change into electrons and neutrinos through a process of particle decay: the transformation from a higher mass state to a…

How hard is it to get a patent on an idea? Since patents are legal articles, they can be somewhat difficult to obtain. Once you’ve determined precisely what you want to patent, you’ll need to do a patent search to make sure someone else hasn’t already come up with the idea. If your idea is…

Can you get malaria from a single mosquito bite? Just one bite from an infected mosquito can lead to malaria. Only female Anopheles mosquitoes can transmit malaria. When a mosquito bites an infected person, it takes in a small amount of blood, which contains microscopic malaria parasites. How long after mosquito bite do you get…

Are dual monitors good for productivity? A survey of over 1,000 end users found an average productivity increase of 42\% when users worked with two monitors instead of one. Two monitors often cost less than one large one. Two displays can offer better resolution than one large screen. Support for a two-monitor workflow has increased…