Science
drorzel | December 13, 2015The topic of sports injuries is unavoidable these days-- the sports radio shows I listen to in the car probably spend an hour a week bemoaning the toll playing football takes on kids. Never a publication to shy away from topics that bring easy clicks, Vox weighs in with The Most Dangerous High School Sports in One Chart. You can go over there to look at their specific chart, which is drawn from a medical study of cheerleading; I don't find the general ordering of things all that surprising.
There was, however, one aspect of this that I found sort of surprising, namely the difference between…
oracknows | December 7, 2015The blog post of mine that arguably "put me on the map" in the skeptical blogosphere was my very Insolent, very sarcastic deconstruction of Robert F. Kennedy, Jr.'s deceptive pseudoscience-ridden bit of fear mongering that he called Deadly Immunity. It was originally jointly published both by Salon.com and Rolling Stone, a blot that neither publication will ever overcome. At least Salon.com retracted the article over five years later. Rolling Stone never did, although the article is now available only to its paid subscribers.
The reason I mention this "past glory" (if you can call it that) is…
oracknows | December 6, 2015To say that the relationship that antivaccine activists have with science and fact is a tenuous, twisted one is a major understatement. Despite mountains of science that says otherwise, antivaccinationists still cling to the three core tenets of their faith, namely that (1) vaccines are ineffective (or at least nowhere near as effective as health officials claim; (2) vaccines are dangerous, causing autism, autoimmune disease, neurodevelopmental disorders, diabetes, sudden infant death syndrome, and a syndrome that is misdiagnosed as shaken baby syndrome; and, of course, (3) the Truth (capital…
oracknows | December 4, 2015Blog topics seem to come in waves, where I'll be stuck on more deeply examining a topic for days, only to have that topic dry up. Sometimes, you, my readers, make me aware of a topic. This is an example of the latter case. It's something I had been debating about whether to blog about because I just wasn't sure what to make of it, and it's also a very, very depressing—even tragic—story. But the drip, drip, drip of people pointing me to the story reminded me that with great power comes great responsibility. (OK, with middling blog power comes a modicum of responsibility.) So I thought I'd try…
drorzel | December 4, 2015So, yesterday was my big TEDxAlbany talk. I was the first speaker scheduled, probably because I gave them the title "The Exotic Physics of an Ordinary Morning," so it seemed appropriate to have me talking while people were still eating breakfast...
The abstract I wrote when I did the proposal mentions both quantum physics and relativity, but when I actually wrote the talk, that made for a really awkward transition, so it's all quantum, all the time. I cover quite a bit of ground-- the no-animation-effects version of the slides is 42 slides and Word has it as just over 2500 words written out…
oracknows | December 3, 2015I originally wasn't going to write about this particular post, but the mass shooting in San Bernardino yesterday led me to change my mind. For those of you who either aren't in the US or were somehow cut off from media for the last 18 hours or so, yesterday a heavily armed man and woman dressed in body armor, who turned out to be a married couple, entered a conference center at Inland Regional Center, a sprawling facility that provides services for thousands of people with disabilities. There, at an annual holiday party for the San Bernardino County Public Health Department, Syed Rizwan…
drorzel | December 2, 2015A longer-than-usual gap between recap posts, but thanks to some kid illnesses and the Thanksgiving holiday, not all that many new physics posts over at Forbes:
-- Football Physics: Checking The Odds On Wild Bounces: A backyard experiment to see how often a bouncing football takes a big hop. Follows from this rant and prompted this post on rotation.
-- Physics Demands Many Kinds Of Literacy: Some musings about the many different ways physicists process information, prompted by graphs generated for the previous item.
-- Football Physics: How Would Changing The Laws Of Physics Change Football?:…
oracknows | December 1, 2015Of all the slick woo peddlers out there, one of the most famous (and most annoying) is Deepak Chopra. Indeed, he first attracted a bit of not-so-Respectful Insolence a mere 10 months after this blog started, when Chopra produced the first of many rants against nasty "skeptics" like me that I've deconstructed over the years. Eventually, the nonsensical nature of his pseudo-profound blatherings inspired me to coin a term to describe it: Choprawoo. Unfortunately, far too many people find Deepak Chopra's combination of mystical sounding pseudo-profundity, his invocation of "cosmic consciousness"…
drorzel | December 1, 2015I've been a little bad about self-promoting here of late, but I should definitely plug this: I'm speaking at the TEDxAlbany event this Thursday, December 3rd; I'm scheduled first, at 9:40 am. The title is "The Exotic Physics of an Ordinary Morning":
You might think that the bizarre predictions of quantum mechanics and relativity– particles that are also waves, cats that are both alive and dead, clocks that run at different rates depending on how you’re moving– and only come into play in physics laboratories or near black holes. In fact, though, even the strangest features of modern physics…
drorzel | November 23, 2015I was headed outside to take a bunch of photos with which I plan to do some SCIENCE!, but that won't be the photo of the day, because this little critter was energetically banging on the side of our house when I got outside:
The woodpecker that was banging on Chateau Steelypips.
I think this is probably a female downy woodpecker. Though I could be wrong. Anyway, she jumped off the side of the house as soon as I opened the door, but obligingly posed on the branch of a nearby tree for a few shots before flying off to bang on something else.
And, really, how could that not be the photo of the…
drorzel | November 17, 2015I followed up my ranty-y post about "Sports Science" with an experimental investigation over at Forbes, tossing a football around on the deck out back and then doing video analysis of the bounces. This provided a wealth of data, much of it not really appropriate for over there, but good for a physics post or two here.
One of the trajectories I looked at was this "forward bounce":
Here's the trajectory reconstructed in Tracker:
Trajectory of a football bouncing forward.
This is notable because not only does it bounce forward, it includes one of those big pop-up bounces that take people off…
drorzel | November 10, 2015Over in Twitter-land, Rhett Allain drew my attention to this "Sports Science" clip from ESPN, about a wild 4th-and-25 play in the Arkansas-Ole Miss game. This is nominally because I've been writing about big hits and bouncing balls over at Forbes, but really, I think Rhett's just working on a "misery loves company" theory, here:
It's a cool play, but as science, this leaves a lot to be desired. It's less "sports science" than "sports technobabble"-- mostly, they seem to be going for a science-y air by quoting lots of largely irrelevant numbers. I'm not sure why it matters how far most of…
oracknows | November 10, 2015After nearly 11 years (!) at this blogging thing, I thought I had covered pretty much every medical topic a skeptic and supporter of science-based medicine would be interested in covering. However, if there's one thing I've learned over the years, it's that there's always something I've missed, some hole in my blogging oeuvre that needs to be filled. Perhaps when I've been at this for 20 years I'll have filled them all in. Even if that becomes true sometime in the next nine years, I will likely have only filled in the old gaps, while new ones will have formed. Dealing with pseudoscience is…
drorzel | November 6, 2015I've known this for a while now, but they just announced it officially: I'll be speaking at TEDxAlbany this year, on "The Exotic Physics of an Ordinary Morning":
You might think that the bizarre predictions of quantum mechanics and relativity– particles that are also waves, cats that are both alive and dead, clocks that run at different rates depending on how you’re moving– and only come into play in physics laboratories or near black holes. In fact, though, even the strangest features of modern physics are essential for everything around us. The mundane process of getting up and getting…
oracknows | November 6, 2015As a surgeon, I find Ben Carson particularly troubling. By pretty most reports, he was a skilled neurosurgeon who practiced for three decades, rising to the chief of neurosurgery at Johns Hopkins. Yet, when he ventures out of the field of neurosurgery—even out of his own medical specialty—he routinely lays down some of the dumbest howlers I've ever heard. For example, he denies evolution, but, even worse, he's been a shill for a dubious supplement company, Mannatech. Worse still, when called out for his relationship with Mannatech in the last Republican debate, Carson lied through his teeth…
drorzel | November 5, 2015A little while back, I used a photo of SteelyKid's toy Newton's cradle as the photo of the day, with a bonus video:
I mentioned that I was going to do some analysis of this at some point, but didn't have time right then. I had a bit of time to poke at this yesterday, though, so here's some physics making use of the normal-speed part of that video (I have another purpose in mind for the high-speed stuff; you'll need to wait for that).
The obvious thing to do with this is to plug it into Tracker and measure the position as a function of time. Here's a graph tracking the position of the two end…
oracknows | November 5, 2015I've been at this blogging thing for more than a decade now. Looking back on those years, I find it incredible that I've lasted this long. For one thing, I still marvel that there are apparently thousands of people out there who still like to read my nearly daily musings (or, as George Carlin would call them, brain droppings) after all these years. More importantly, being a public advocate for science is a rough business, as I've documented over the years. Back when I first started out, I was completely pseudonymous and anonymous. I kept my real name relatively secret. It was less than five…
carlyo | October 30, 2015Show us how you celebrate Halloween using STEM! Carve science themed pumpkins, create gooey spooky experiments or dress up as your favorite Mad Scientist! Have fun with your STEMtastic creations!
How do you enter? It's easy! From now until Halloween night, just post pictures of your activity or creation onTwitter, Instagram and/or on our Facebook wall and use #ScifestBoo! (Be sure to tag us)
Contest is open to groups and individuals (ages 5-18). Note: Parents and teachers can post on behalf of children.
drorzel | October 30, 2015I've been slacking in my obligation to use this blog for self-promotion, but every now and then I remember, so here are two recent things where I was interviewed by other people:
-- I spoke on the phone to a reporter from Popular Mechanics who was writing a story about "radionics" and "wishing boxes," a particular variety of pseudoscience sometimes justified with references to quantum mechanics. The resulting story is now up, and quotes me:
It is hard to investigate the ethereal thinking around radionics, but physics is something that can be parsed. So I got in touch with Chad Orzel, a…
drorzel | October 29, 2015I got off on a bit of a rant the other day about bad defenses of "the humanities," but there's a bright side. It finally got me to write my own, over at Forbes, which is basically the last piece of a tetralogy of advice for students:
-- Why small colleges are a great place for students majoring in STEM subjects
-- What students planning to major in STEM subjects should make sure to do in college
-- Why non-STEM majors should nevertheless take science classes in college
-- Why STEM majors should take "humanities" classes, and take them seriously
That last one, posted yesterday, is my attempt…