The Clinton Herald, Clinton, Iowa

Lifestyles

October 4, 2012

Foreign Policy: Battlestar Galactica got space warfare right. Finally.

(Continued)

The "three Hs" are history, hiding, and hydrodynamics. For the first H, history, there were only two two types of warships: "battleships" and "scouts and auxiliaries." They usually didn't call them by these names, but that's a good functional description. The battleships fought, and the scouts and auxiliaries scouted and carried troops, materiel, messages, and the like. In the 20th century, though, we got changes: new weapons (torpedoes) that make a new type of ship, the escort, necessary, and new platforms (submarines and airplanes) that used the new weapon (and added aerial bombs). These new weapons had the frightening ability to, at least on paper, kill a battleship with a single blow. And one warfare area (surface combat) becomes three -- surface, subsurface, and air. That's historically how things developed, with different time periods having their own particular characters, as new technologies were developed and old ways of doing things were superseded. Science fiction navies, however, are often a mishmash of time periods, with all of the "cool bits" mixed together. So, they don't make sense given the assumptions of the fictional universe or the non-fictional universe from which they were drawn.

For the second H, hiding, surface ships hide in four different ways: Behind the curve of the earth, behind the ocean interface where ocean surface meets the sky, by taking advantage of distance, and through the use of low-observability such as stealth technology. But in space, there is no curve of the earth or ocean interface to hide you from enemy radar, or even telescopes.

The third H is hydrodynamics: For a ship in the water, drag increases as the cube of speed. This is why ships have a top speed. As your speed increases, your drag increases exponentially, until you double the size of your engines but you really don't go any faster. In space, your top speed is more about reaction mass, but you have other issues that have to do with how big a ship you can build before it starts to collapse in on itself. As ships grow bigger, they have to devote a greater percentage of their total mass to holding themselves together. Hydrodynamics limits and defines surface ships and submarines, just as aerodynamics limits and defines airplanes. In the real world, this means that combat craft either go fairly slow like ships or go fairly fast (like airplanes -- there's not much in between. You see similar patterns in a lot of science fiction, even though they should be thinking in terms of acceleration over time, rather than top speed. As with most of these things, written science fiction is better than video formats.

Text Only
Lifestyles
  • CATS-DOGS281.jpg Where cats are more popular than dogs in the U.S.-and all over the world

    We all know there are only two types of people in the world: cat people and dog people. But data from market research firm Euromonitor suggest that these differences extend beyond individual preferences and to the realm of geopolitics: it turns out there are cat countries and dog countries, too.

    July 29, 2014 1 Photo

  • The Clinton Herald Jim Miller Low-cost, free cellphone options for seniors DEAR SAVVY SENIOR: What are the cheapest cell phone options available today to seniors living on a shoestring budget? I only need it for occasional calls. — Seldom Calling SeniorDEAR SELDOM: For financially challenged seniors who only want a cell pho

    July 19, 2014 1 Photo

  • YWCA offers lifeguard training

    CLINTON — The YWCA will offer lifeguard training in August.The course will be held from Aug. 4 to 10 at the YWCA. This 30-hour class will meet from 5 to 9 p.m. for four weeknights and from 1 to 5 p.m. Saturday. A possibility of adding a class from 1

    July 25, 2014

  • GPS race Teams race to complete challenges THOMSON, Ill. — A challenge in August will pit teams against each other to complete a series of challenges.The event will begin at 9 a.m. Aug. 16 at the Upper Mississippi River National Wildlife and Fish Refuge in Thomson. Armed with GPS units, teams

    July 25, 2014 1 Photo

  • Habitat for Humanity hosts fundraiser

    CLINTON — Habitat for Humanity will host a fundraiser in Thomson, Illinois.The Clinton County group will showcase Laid Back Luau from 5 to 8 p.m. Friday, Aug. 8, at Heirloom Cafe in Thomson. The event will feature games, prizes, music train rides for

    July 25, 2014

  • Fire departments undergo grain bin rescue training OMAHA — The Goose Lake and Lost Nation Volunteer Fire Departments each have received lifesaving grain bin rescue equipment through a donation from Farm Credit Services of America.Goose Lake received its equipment July 14 and Lost Nation on July 15. E

    July 24, 2014

  • ADM donates $75K for fire boat purchase CLINTON — Archer Daniels Midland Company has donated $75,000 to the city of Clinton for a new fire and rescue boat for the Clinton Fire Department.The boat will help the fire department respond to fires, administer emergency medical services and resp

    July 24, 2014

  • Students get first-hand look at non-profits CLINTON — An upcoming event will showcase Clinton area’s non-profits to incoming Ashford University students.The second Fresh START (Serving to Achieve Results Together) event will be held Saturday, Aug. 16. Students and staff members will serve at v

    July 23, 2014

  • Friend of the Fair Two honored as 'Friends' MORRISON, Ill. — The Whiteside County Fair recently announced its 2014 Friend of the Fair. Paul Vock and Dan Heusinkveld are this year’s honorees. The two men have been involved with the fair for decades.Vock started with the fair in 1971 as the Heav

    July 22, 2014 1 Photo

  • Bice Nurses earn Daisy awards

    CLINTON — Two Clinton nurses recently earned Daisy awards.Mercy Medical Center nurses Jodie Atkinson and Kristen Bice earned the awards that is rewarded to extraordinary nurses. Atkinson began her career in nursing at Mercy Medical Center in 1995 on

    July 22, 2014 2 Photos

Front page
Clinton Herald Photos


Browse, buy and submit pictures with our photo site.

Poll

Should the city of Clinton appeal the open records violation ruling that will cost taxpayers $40,600?

Yes
No
     View Results
AP Video
Olympics 2014
Featured Comment
Featured Ads
Blue Zones Project
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.