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Category Archives: Uncategorized
Why is the F-35 slow?
The VTOL variant, F-35B, has the lift fan behind the cockpit. This means weapons bays or the inlet ducts can not be on the centerline, behind the cockpit – instead they are on the sides. This applies to all the … Continue reading
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Mitigating Coronavirus Economic Effects and Finding New Business Opportunities
Currently, governments are taking drastic measures to prevent a large amount of people dying, which is a good thing. When the lockdown and isolation time extends, the economy will start doing increasingly worse. People are laid off, businesses go bankrupt. … Continue reading
Building rockets like disposable gloves
There’s two fundamental approaches to lower space launch cost: K-strategy: Building sophisticated reusable rockets that can fly quickly again after landing. r-strategy: Instead building simple expendable rockets by the mass as cheaply as possible. Firefly, looks to do just the … Continue reading
Posted in industry, Launchers, RLV:s, Uncategorized
Tagged Firefly, Markusic, pressure fed, self-pressurized
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Elon Musk’s Hyperloop
What is it? A new mode of transportation that’s supposed to be very fast like Concorde, on ground level and requires no rails. What could it be? Dylan thinks it’s a tube mail system. Jacques thinks so as well, and says … Continue reading
Flynano prototype shown to public
Flynano, the sub-70 kg carbon fiber seaplane designed to go around regulations by sheer lack of mass. Their first prototype that was retired and is now exhibited at verkkokauppa in Jätkäsaari, Helsinki, Finland. I took a few photos, more after … Continue reading
Posted in airplane, Homebuilt, Uncategorized
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Cameras and physics of light
This should be highschool level deduction. The basics In short: Assuming equivalent sensor technology where read noise or thermal noise doesn’t dominate: 1. Low light performance (low noise in low light photos) is dependent on absolute aperture size 2. Dynamic … Continue reading
Posted in Photography, Science Links, Uncategorized
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Oh boy, lenses and cameras
The previous post got old immediately. Sony released a couple of cameras (NEX-5N and NEX-3C) and lenses and Panasonic released a small lens and leaked two high grade ones. What beats me is how the Sony 16-55 mm F2.8 can … Continue reading
Posted in Photography, Uncategorized
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