First illustration in my Women in Science series. Get one for yourself here:
Here are some tips and tricks about issues you may have with DNA in the lab.
Provided by Life Technologies (@LIFECorporation on Twitter).
why celsius/centigrade is better than fahrenehenheit
- easier to spell
- all water below 0 is ice. easy and logical
- all water above 100 is steam. easy and logical
- if it’s 1 degree outside one day and 10 degrees the next you can literally say it’s 10x warmer and you aren’t even exaggerating
why farhenininheniehenhet is better than centigrate/celsius
- it isn’t
If you’re into bears, science, and other assorted things, check out this cool cat’s blog! @scibear
Dating life of a scientist…
Great question! Actually, yes, the elements chlorine and sodium are in the same period (row) on the periodic table. As you go to the right in a period, the atomic radius decreases as the nucleus becomes more positively charged (more protons), so the electrons orbiting the atomic nucleus are pulled closer inward.
HOWEVER, this is the catch: Beatrice’s cartoon depicts sodium chloride, an ionic compound, where sodium has given its single valence shell electron to chlorine, making it a chloride ion. Because sodium gives away it’s outermost shell’s only electron, the electron shell becomes smaller and the electron configuration of sodium ion (Na+) becomes that of Neon. Chloride will remain in the same energy level and its octect is satisfied, so it’s happy. So because sodium gives away its only valence shell electron to chlorine to make chloride, it loses an entire energy level of its electron cloud.
In a survey of scientists engaged in field research, the majority — 64 percent — said they had personally experienced sexual harassment while at a field site, and 22 percent reported being the victim of sexual assault.
Most of the people reporting harassment or assault were women, and the vast majority were still students or postdocs.
And for female victims, the perpetrator was more likely to be a superior, not a peer. “This is happening to them when they are trainees, when they are most vulnerable within the academic hierarchy,” says evolutionary biologist Katie Hinde , an author on the study in PLOS ONE. Hinde and her colleagues say this could be a factor in the large number of women who enter scientific fields but don’t continue.
Students work at an archaeological dig near Silchester, England.
This makes me sad.