### Why I'm happy and why it matters, by Renée Hlozek

While I was still working at Caltech earlier this year Renée Hlozek (pronounced "logic")---Princeton astrophysicist, cosmology theorist and statistics badass---stopped through Pasadena to give a science talk. During her visit she gave me advice for mentoring women astronomy students and we also shared our thoughts on the underrepresentation of women in astrophysics, particularly at the faculty level. One important aspect that we identified was the environment provided by various departments, and how some work environments are caustic for women (and minorities) while others are extremely welcoming. Renée identified Princeton Astronomy (good ol' Peyton Hall) as an exemplar among astronomy departments in offering a healthy atmosphere for women astronomers. I asked her to elaborate and she was kind enough to put together this guest post.

I'm about to start the third year of a postdoc in the department of Astrophysics at Princeton University, and I love my job. And I love coming to work. And I am a woman. It may not seem like loving my job my gender would be related, but for a while now I've been thinking that my love for my job is at least partly linked to my department's policies about young researchers and towards women in science.

The Princeton Astrophysics department is filled with leaders in the field and I don't mind admitting that I was pretty nervous the first time I visited, let alone before I started here. I've been to other departments where as a visitor I felt isolated, and where I've felt the department wasn't as open or friendly, so I thought I'd take note of a few reasons why it is a pleasure to work here. Is it always relaxed and easy? No. Do I sometimes get frustrated at ego-driven debate? Yes. But I feel respected in the department and that people are open to listening to my ideas, rather than just dismissing them. It is a reality of our field that this is really not always the case at other places.
1. The department has an open doors policy - and people make a real effort to chat to visitors when they come to the department. Now just having an open doors policy does not necessarily mean that all people have a voice, but I've found that faculty are supportive of events such as the discussion groups on diversity and equity (even when that support is hanging back from a discussion in order to give people space to discuss things that might be hard to mention openly) and request feedback on ways to make the department better.
2. The Astrophysics department here at Princeton is trying to increase the numbers of women in the department at all levels. Now, with numbers being roughly 24% at all levels (more specifically 30% undergraduate majors, 16% postdocs and research assistants and 25% faculty), we still have quite a way to go, but the department has shown with recent hires that they want to increase that percentage. This makes me feel less like a 'foreign body' as a woman. That being said we, like many places, definitely need to do more to increase the number of members in our department who are minorities, but the university as a whole is strongly invested in tackling the issue of diversity in the university, and I recently attended a very worthwhile workshop on the topic (http://www.princeton.edu/diversity/news/).
3. We have astro coffee to discuss new results every morning. That is also a great way to welcome
 "Grand Central Station" in Peyton Hall
visitors and helps you take the pulse of the department. The postdocs and some grad students make an effort to eat lunch together about once a week, and this helps us stay connected. Initially I was a bit worried that there was lots of inter-postdoc interaction but not much interaction between grad students and postdocs, but now with a regular movie night things are improved and there is more interaction across lines - something I see as critical to make all members feel included in the department.
4. Babies and pets a welcome at work. I have neither a baby or a dog, but the fact that the department is relaxed and people feel like they are accommodated makes for a happier place. This was the thing I was most surprised to find, and makes a huge difference.
5. We have a semi-formal system in place to provide me with mentorship, and I could choose my mentor. I also then can mentor grad students, should they take advantage of that (and we are actively trying to find better ways to make it work). In addition the chair and co-chair of the department make an effort to actually keep informed on how I'm doing not only in my work life, but also if there are other issues that I might be facing. That doesn't mean we have heart-to-heart chats every day, but I feel like if I have a problem I'm not actually alone. This started right from the very beginning when the admin staff were super helpful in getting me moved from the UK and settling me in.
 A dog. At work! Who's a silly doggie writing Pyton on a laptop? Who's that?! Can the doggie write Python while getting his ears scritched? Ooooh!
So why do I keep mentioning things being friendly? Well personally I find if there is too much ego-driven academic aggression I get disheartened because it gets in the way of science. This is of course not something that affects only women, everyone benefits from a good working environment. What I enjoy is that there are allies at Princeton Astrophysics that hear me out and actively want to create a department where its members are seen as whole people, rather than just wheels in a production machine of science.

In addition, while there is much still to do before we have equal numbers of women and men in our department, the attitudes and policies within the department make me feel like it is a priority within Princeton Astrophysics to increase the female to male ratio.

We keep hearing discouraging news about women in science, and we have a long way to go. But I think not only are there concrete things we can do now, but we can take encouragement from places where good decisions are being made. And if you create a place people want to be in, they are more likely to be happy, healthy and productive. And that is why it matters that I love my job.

### On the Height of J.J. Barea

Dallas Mavericks point guard J.J. Barea standing between two very tall people (from: Picassa user photoasisphoto).

Congrats to the Dallas Mavericks, who beat the Miami Heat tonight in game six to win the NBA championship.

Okay, with that out of the way, just how tall is the busy-footed Maverick point guard J.J. Barea? He's listed as 6-foot on NBA.com, but no one, not even the sports casters, believes that he can possibly be that tall. He looks like a super-fast Hobbit out there. But could that just be relative scaling, with him standing next to a bunch of extremely tall people? People on Yahoo! Answers think so---I know because I've been Google searching "J.J. Barea Height" for the past 15 minutes.

So I decided to find a photo and settle the issue once and for all.

I then used the basketball as my metric. Wikipedia states that an NBA basketball is 29.5 inches in circumfe…

### Finding Blissful Clarity by Tuning Out

It's been a minute since I've posted here. My last post was back in April, so it has actually been something like 193,000 minutes, but I like how the kids say "it's been a minute," so I'll stick with that.
As I've said before, I use this space to work out the truths in my life. Writing is a valuable way of taking the non-linear jumble of thoughts in my head and linearizing them by putting them down on the page. In short, writing helps me figure things out. However, logical thinking is not the only way of knowing the world. Another way is to recognize, listen to, and trust one's emotions. Yes, emotions are important for figuring things out.
Back in April, when I last posted here, my emotions were largely characterized by fear, sadness, anger, frustration, confusion and despair. I say largely, because this is what I was feeling on large scales; the world outside of my immediate influence. On smaller scales, where my wife, children and friends reside, I…

### The Force is strong with this one...

Last night we were reviewing multiplication tables with Owen. The family fired off doublets of numbers and Owen confidently multiplied away. In the middle of the review Owen stopped and said, "I noticed something. 2 times 2 is 4. If you subtract 1 it's 3. That's equal to taking 2 and adding 1, and then taking 2 and subtracting 1, and multiplying. So 1 times 3 is 2 times 2 minus 1."

I have to admit, that I didn't quite get it at first. I asked him to repeat with another number and he did with six: "6 times 6 is 36. 36 minus 1 is 35. That's the same as 6-1 times 6+1, which is 35."

Ummmmm....wait. Huh? Lemme see...oh. OH! WOW! Owen figured out

x^2 - 1 = (x - 1) (x +1)

So $6 \times 8 = 7 \times 7 - 1 = (7-1) (7+1) = 48$. That's actually pretty handy!

You can see it in the image above. Look at the elements perpendicular to the diagonal. There's 48 bracketing 49, 35 bracketing 36, etc... After a bit more thought we…