I like the thing, but it misses what I enjoyed teaching about these most: phase. Many people know white noise is nominally 'all frequencies at the same intenisty', yet those taught Fourier mathematics are also taught that the same recipe makes a pulse. The difference is all in the phase information, and why I maintain to this day the Nyquist-Shannon sampling theorem, as typically applied, is incorrect.
I've seen a surprisingly low rate of research conducted 'R&D' roles through my admittedly short career. The research segment of any work had been limited to testing of ideas that are highly likely to work, the bulk of the work is product or prototype development. The R&D technologists employed tend to act as rapid response personnel for tasks not predicted by project managers or systems engineers.
That sound like a lot fun. Working on similar recently, I've learned the basics are almost trivial with the information and technology that is now widely availablr, and this really demonstrates that.
Can't agree more. When we get tool or parts catalogues through work on the break room table, I recommend to all our graduates they spend time going through it, and to look up things they don't understand. Knowing the tool for the job already exists can save so much time and money, and while that genre of tool may change significantly, it applies to all fields of engineering.
I learned this lesson in my first ever public lecture. Approximately 10% of my audience had some form of colour blindness, rendering the majority of my figures incapable of communicating their intent.
Since then I have rendered all figures for public consumption in black and white, and lines instead of surfaces where possible.
I remembered Shpongle earlier this year, after not even thinking of them for the better part of a decade. The work clean room hasn't been the same since. It's a welcome respite from pop radio in the main workshop.
What would be better though? 1kg is 1kg, regardless of temperature, pressure and volume. A litre, gallon, cc, all need clarification with respect to something else. You could use moles, but for a given compound, mass is just a more accessible, yet equally accurate, scaled value.
It's a small family of the nickel alloys. Lots of iron, as the primary alloying element, then other things. Different invar alloys exist, with different goals of 'invariant'. None are truly invariant, but some will behave better in a thermal band than others. Changing the alloying can get you into kovars (covariant, typically to glass or ceramic) another family. Inconel is yet another family of nickel alloy, favoured for its strength under some conditions. Small percentage alloying changes can have a sizeable impact.
I think it would be less strong than a wavy wall of similar brick count, but still more efficient than an equivalent strength wall built in a straight line.
My mental reasoning for this is that a (pseudo) sinusoid spends a lot more of its path further away from the centre. Thinking of it as a point moving along the path through time, it will dwell and the peaks, and cruise through he centre. The contribution of each brick to wall stiffness will be related to the cube of the distance from the centre line (neutral axis), so more 'time' spent at the peaks is best. This holds true on the macro scale, but could vary on the scale of a half 'wavelength' as the lack of inversion of curvature could be beneficial there.
Everything moderately reasonable seems to be better than a straight line in this instance. In the limit, two much thinner walls, far apart, is the optimal solution, but that becomes unreasonable as those walls must be coupled together to provide strength.
The same reason is why my roof has corrugated metal sheeting, rather than plate.
This was a question I had students prove out. With the bending moment of inertia being related to the cube of the thickness for a flat plate, the maths trickles out very quickly.
If you get to work one day, and there's a frog on your desk, and a job assigned to you to eat the frog, you're going to have to get it done. You can let it sit there and sit there there, but sooner or later you're going to have to eat the frog. Might as well get that job done with and move one to the next, more enjoyable, thing.
We don't eat frogs at work, but we do get many a job you'd rather put off to later.
For me the most amazing part here was the briefly mentioned spec of having a CFL backlight. I would have never considered that, but for the era it makes perfect sense.
I've recently switch back to good old balsa wood. I've been 3d printing for years and metal working for longer. Going back to easily worked wood has in many ways accelerated some developments.
I see similar in a lot of engineering fields, and people often complain that students don't learn a b or c. I've noticed that a lot of things get skipped over in a degree because they're no longer critical (engineering drawing), assumed you can pick it up anyway (CAD), or some other reason. When it comes down to it, these fields have grown so much in what they could cover, that they can't possibly cover everything. Even to give a foundational knowledge of the whole field has become impractical in a four year degree.
We have issues working with lead at work, mostly due to toxicity. Putting a hole in a sheet isn't as simple as getting out the drill, not mechanically, but due to all the swarf that needs to be cleaned up. 3D printing a bolt-on cover would be lower risk than drilling lead, a quicker turnaround than getting a die made and lead cast, and give a prototype that doesn't need to be handled with gloves.
For the right application, there are some good wins here.
That is actually so useful for me, wow. We prototype in lead, which is a pain from an OHS perspective. This would make life a lot eaiser, without the cost of tooling to get moulding nylon/tungsten parts made.
Why be a party of the community if you, as it seems, dislike it so? I don't understand the frequent complaining across various forums where people actively participate in something where they have no obligation to do so.
Why would someone place a toggle select for 'necessary cookies' on this page that cannot be deselected? It explains their justification for not being able to deselect (valid or not), but this does not explain removing or greying out the control.
I'd like to understand where this title came from. The title within the article, while longer, seems much more reasonable a statement:
"Twelve Weeks of Sprint Interval Training Improves Indices of Cardiometabolic Health Similar to Traditional Endurance Training despite a Five-Fold Lower Exercise Volume and Time Commitment"