Date: Wed, 24 Feb 93 05:12:15 From: Space Digest maintainer Reply-To: Space-request@isu.isunet.edu Subject: Space Digest V16 #220 To: Space Digest Readers Precedence: bulk Space Digest Wed, 24 Feb 93 Volume 16 : Issue 220 Today's Topics: *advocate* anonymous postings ALTERNATIVE Heavy Element Creation in Universe Anon posters Fred and congress' job Getting people into S How many RPM's around his own axle can human take? MacElwaine's discipline NASP (was Re: Canadian SS New name for Fred ? Nobody cares about Fred? (3 msgs) Replacing SSF Spy Sats (Was: Are La Star vendor phone (was Re: I'm really embarrassed to ask this but...) Textbook (was Re: How many RPM's around his own axle can human take?) what is the force of gravity Welcome to the Space Digest!! Please send your messages to "space@isu.isunet.edu", and (un)subscription requests of the form "Subscribe Space " to one of these addresses: listserv@uga (BITNET), rice::boyle (SPAN/NSInet), utadnx::utspan::rice::boyle (THENET), or space-REQUEST@isu.isunet.edu (Internet). ---------------------------------------------------------------------- Date: 23 Feb 1993 02:17:41 GMT From: "Stuart P. Derby" Subject: *advocate* anonymous postings Newsgroups: news.admin.policy,comp.org.eff.talk,alt.privacy,sci.space,sci.astro,sci.crypt In article <1993Feb18.034151.1094@wixer.cactus.org> lestat@wixer.cactus.org (Lyle J. Mackey) writes: >I personally don't believe that pseudonymous postings are appropriate in a >serious discussion area. If there is a LEGITIMATE reason for concealing the >posters' identity, perhaps, but simply because they're not so sure if they >want their name attached doesn't qualify as LEGITIMATE in my book. (Oh, >and if you can come up with a legitimate purpose for anonymous postings, >please, enlighten me.) [deleted] >If one is not comfortable with the postings of his idea, and is not willing >to stand behind his ideas, what reason has he to push his ideas upon us? Three of our (the U.S.'s) founding fathers, Madison, Hamilton, and Jay, seemed to think "anonymous posting" was OK. The Federalist papers were originally printed in New York newspapers with authorship attributed to "Publius". I wonder if you would find their purpose "LEGITIMATE"? -Stu -- ------------------------------------------------------------------------ Stuart Derby - sderby@bcm.tmc.edu | Anagram of the Year: Baylor College of Medicine | Tuesday, November Third <==> Houston, Texas | Many Voted, Bush Retired ------------------------------ Date: 22 Feb 93 18:44:31 -0600 From: mcelwre@cnsvax.uwec.edu Subject: ALTERNATIVE Heavy Element Creation in Universe Newsgroups: sci.space BIOLOGICAL ALCHEMY ( ANOTHER Form of COLD FUSION ) ( ALTERNATIVE Heavy Element Creation in Universe ) A very simple experiment can demonstrate (PROVE) the FACT of "BIOLOGICAL TRANSMUTATIONS" (reactions like Mg + O --> Ca, Si + C --> Ca, K + H --> Ca, N2 --> CO, etc.), as described in the BOOK "Biological Transmutations" by Louis Kervran, [1972 Edition is BEST.], and in Chapter 17 of the book "THE SECRET LIFE OF PLANTS" [see Footnote] by Peter Tompkins and Christopher Bird, 1973: (1) Obtain a good sample of plant seeds, all of the same kind. [Some kinds might work better that others.] (2) Divide the sample into two groups of equal weight and number. (3) Sprout one group in distilled water on filter paper for three or four weeks. (4) Separately incinerate both groups. (5) Weigh the residue from each group. [The residue of the sprouted group will usually weigh at least SEVERAL PERCENT MORE than the other group.] (6) Analyze quantitatively the residue of each group for mineral content. [Some of the mineral atoms of the sprouted group have been TRANSMUTED into heavier mineral elements by FUSING with atoms of oxygen, hydrogen, carbon, nitrogen, etc..] BIOLOGICAL TRANSMUTATIONS occur ROUTINELY, even in our own bodies. Ingesting a source of organic silicon (silicon with carbon, such as "horsetail" extract, or radishes) can SPEED HEALING OF BROKEN BONES via the reaction Si + C --> Ca, (much faster than by merely ingesting the calcium directly). Some MINERAL DEPOSITS in the ground are formed by micro- organisms FUSING together atoms of silicon, carbon, nitrogen, oxygen, hydrogen, etc.. The two reactions Si + C <--> Ca, by micro-organisms, cause "STONE SICKNESS" in statues, building bricks, etc.. The reaction N2 --> CO, catalysed by very hot iron, creates a CARBON-MONOXIDE POISON HAZARD for welder operators and people near woodstoves (even properly sealed ones). Some bacteria can even NEUTRALIZE RADIOACTIVITY! ALL OF THESE THINGS AND MORE HAPPEN, IN SPITE OF the currently accepted "laws" of physics. Footnote: Chapters 19 and 20 are about "RADIONICS". ENTIRE BOOK is FASCINATING! "BIOLOGICAL TRANSMUTATIONS, And Their Applications In CHEMISTRY, PHYSICS, BIOLOGY, ECOLOGY, MEDICINE, NUTRITION, AGRIGULTURE, GEOLOGY", 1st Edition, by C. Louis Kervran, Active Member of New York Academy of Science, 1972, 163 Pages, Illustrated, Swan House Publishing Co., P.O. Box 638, Binghamton, NY 13902 "THE SECRET LIFE OF PLANTS", by Peter Tompkins and Christopher Bird, 1973, 402 Pages, Harper & Row, New York UN-altered REPRODUCTION and DISSEMINATION of this IMPORTANT Information is ENCOURAGED. Robert E. McElwaine B.S., Physics and Astronomy, UW-EC ------------------------------ Date: Tue, 23 Feb 93 18:17:48 EST From: Tom <18084TM@msu.edu> Subject: Anon posters >Use a kill file, let it all continue unchecked and the problem WILL get >worse. We need to deal with it now, not stick our collective heads in >the sand. If a bonehead post drops onto usenet, and nobody reads it, does it make a noise? :-) -Tommy Mac ------------------------------------------------------------------------- Tom McWilliams | 517-355-2178 (work) \\ Inhale to the Chief! 18084tm@ibm.cl.msu.edu | 336-9591 (hm)\\ Zonker Harris in 1996! ------------------------------------------------------------------------- ------------------------------ Date: Tue, 23 Feb 93 18:46:46 EST From: Tom <18084TM@msu.edu> Subject: Fred and congress' job Allen (I think it was) said: >>You may call building something which works for a reasonable sum >>micromanagement; I call it Congress's job. I said: >Actually, Congess' job is writing laws that protect our rights. Spending >money taken from us against our will is called 'violating citizens >rights', or 'robbery', as long as there are those who don't support >that taking and spending. >If you take it as given that Congress must work this way, fair enough, >just call it what it really is. Fred replies: >We are. You are not. Please see your local copy of the U.S. >Constitution regarding the duties and powers of Congress. You will >find taxation and spending of said revenues among the powers. It's up >to the voters to hold them accountable for how much they tax and just >what they fund with it, but calling taxation and spending "violating >citizens rights" or "robbery" is a losing strategy; it merely makes >you look like 'lunatic fringe' material and people stop listening.' You listened to me :-) And, if you'll continue your perusal of the document mentioned above, you will also notice the tenth amendment, which limits the powers of congress to those enumerated within the document. If you can find enumeration of a space program, especially considering the time the document was written...There are amendments that refer, essentially, to new powers granted, along with necessary legislative and taxation powers to support the amendment, but nothing at all about space, or economic development, or coldwars, or exploaration, or... The only legal basis for much of the spending that congress does is the 'general welfare' clause. If you want to hold what NASA has been doing, WRT fred, as supporting the general welfare, then I can only assume that you have a different set of principles upon which you judge 'general welfare', or you are going out of your way to support a system that is unjust, with a motive I can only guess at. Please enlighten me which it is, or what it is, if I am mistaken. If you'd like some info on what the Libertarians are doing, locally and nationally to put a stop to these kind of immoral and impractical legal situations, using the legal system istelf, drop me a line. Aaand, on a related note.... I'm a little hazy on the legal picture, but I've got an inkling that since the fed agencies are considered part of the executive, that Prez. Clinton can do what he damn well pleases (notwithstanding politics) WRT fred, etc. Is this so? -Tommy Mac ------------------------------------------------------------------------- Tom McWilliams | 517-355-2178 (work) \\ Inhale to the Chief! 18084tm@ibm.cl.msu.edu | 336-9591 (hm)\\ Zonker Harris in 1996! ------------------------------------------------------------------------- ------------------------------ Date: 22 Feb 93 16:26:00 GMT From: Roland Dobbins Subject: Getting people into S Newsgroups: sci.space JL>Could that be the vehicle commonly called the flying Bumble Bee, wh JL>clai to fame in the ordinary world is the vehicle that opened the s JL>and each episode of the six million dollar man. If I recall correct JL>was aeronautically considered to be unflyable, but flew anyway and JL>for a while touted as a great instrument for flight to and from low JL>orbit. It finally crashed on descent when it touched down and did a JL>up unfortunately a Helo was in the way and the two collided as the JL>goes. I think That its prototypes and other s are still on display JL>the yearly aeronautical show at Edwards airforce base. As I recall, that particular lifting body was called the HL-10, and it was most certainly _not_ designed *not* to fly . . . . --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 22 Feb 93 19:57:12 -0600 From: Bill Higgins-- Beam Jockey Subject: How many RPM's around his own axle can human take? Newsgroups: sci.space,sci.med In article <1993Feb20.174650.5083@prime.mdata.fi>, jjj@mits.mdata.fi (Joni Jarvenkyla, The Whirling Finn) writes: > How many RPM's around his own axle can a human take? [...] > I need this information to designing an amusement park -type of thing, > which will only be for "real fun" as opposed to the very lame apparates > found in amusement parks. Of course I will finally test these on myself, > but I needed practical guidelines along which I should be able to make > safe tests. This guy would get along very well with the rec.pyrotechnics crowd, I think. Bill Higgins, Beam Jockey | "Some of these guys must be Fermi National Accelerator Laboratory | typing with their noses. Bitnet: HIGGINS@FNAL.BITNET | They can't possibly Internet: HIGGINS@FNAL.FNAL.GOV | have any fingers left." SPAN/Hepnet: 43011::HIGGINS | --Todd R. Johnson ------------------------------ Date: Tue, 23 Feb 93 18:06:32 EST From: Tom <18084TM@msu.edu> Subject: MacElwaine's discipline >>In article <24861@alice.att.com> ark@alice.UUCP () writes: >>>It always worries me when someone is stomped on because of what he says, >>>even if what he says is unadulturated gibberish. Are we so thin-skinned >>>that we can't just ignore stuff we don't want to see? >>I must agree with you Andrew. Just because *you* (newsgroups in >>general) don't agree with what someone has to say doesn't mean you have the >right to CENSOR him/her. Yes, I agree that sometimes some of the posts can be >Maybe it's about time a lot of these people learned about >a newsreader called 'nn'. I think the issue is not that people disagree with him, but that they have a problem with him constantly repeating his posts, despite recieving courteous and non-threatening requests to lay off. Once (or a few times) is freedom of expression. Several times, with identical content, is freedom of harassment. Disk space isn't free for me, how about you? To be fair, perhaps before taking 'disciplinary' action, someone informs MacElwaine of the situation, with a further request to lay off. Then, if he still persists... -Tommy Mac ------------------------------------------------------------------------- Tom McWilliams | 517-355-2178 (work) \\ Inhale to the Chief! 18084tm@ibm.cl.msu.edu | 336-9591 (hm)\\ Zonker Harris in 1996! ------------------------------------------------------------------------- ------------------------------ Date: 22 Feb 93 16:26:00 GMT From: Roland Dobbins Subject: NASP (was Re: Canadian SS Newsgroups: sci.space CO> CO>From: C.O.EGALON@LARC.NASA.GOV (CLAUDIO OLIVEIRA EGALON) CO>Newsgroups: sci.space CO>Subject: NASP (was Re: Canadian SSF effort ?? ) CO>Date: 20 Feb 1993 19:44:50 GMT CO>Message-ID: <1m61niINNfth@rave.larc.nasa.gov> CO>Reply-To: C.O.EGALON@LARC.NASA.GOV (CLAUDIO OLIVEIRA EGALON) CO> CO>> Aerospace Daily also reports that NASA research CO>> on advanced subsonic and supersonic transport aircraft would CO>> get a big increase under Clinton's budget plan, with $550 CO>> million more programmed in fiscal years 1994-97, and another CO>> $267 million scheduled for FY '98. CO> CO>What about NASP??? CO> CO> Errr . . . that _is_ NASP. It's SSX I'm worried about . . . --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 22 Feb 93 13:01:00 GMT From: Jerry Laplante Subject: New name for Fred ? Newsgroups: sci.space PC>Newsgroups: sci.space PC>Subject: New name for Fred ? PC>Message-ID: <1993Feb21.010440.10371@unisys.co.nz> PC>From: carter@unisys.co.nz (Paul Carter) PC>Date: Sun, 21 Feb 1993 01:04:40 GMT PC>First there was Space Station Freedom, then cutbacks led to Fred. PC>What name should be given to the newly announced redesign of the redesign ? PC>Ideas for some candidates: PC>MacFred - Son of Fred PC>Fre - allows for three more redesigns: "Fr", "F" and "" PC>Freddie - there was some Horror movie character by this name PC>FCFG - Freedom come, Freedom go ( sung to the tune of the song of the PC> same title ). PC>Fort Tune - Sounds similar to Freedom, but costs more. PC>Freeom - Freedom without a truss. PC>Post your ideas to me, I'll collate them and put up a summary PC>of candidates. If there's enough interest, a vote can be organised. PC>My mail address: carter@unisys.co.nz Name it after a congressman/senator and your funding will grow rather than be cut. Or Name it after Martin Luther King and wait for taxfree donations to roll in ---- *--------------------------------------------------------------------------* | The File Bank BBS - 619-728-4318 - PCBoard v.14.5a/E10 - USR HST & DS | | 8 nodes / RIME / Internet / Largest Clipper file collection in the world | *--------------------------------------------------------------------------* ------------------------------ Date: 22 Feb 1993 13:45 CST From: wingo%cspara.decnet@Fedex.Msfc.Nasa.Gov Subject: Nobody cares about Fred? Newsgroups: sci.space In article <1993Feb22.111917.1789@iti.org>, aws@iti.org (Allen W. Sherzer) writes... >In article <1m9hi3INNgdf@phantom.gatech.edu> matthew@phantom.gatech.edu (Matthew DeLuca) writes: > >>This is at least the fifth time I've seen you accuse someone of accusing >>you of being a liar this week; > >Actually, it is the second time I accused Dennis. > >>the fact that someone doesn't believe you >>doesn't necessarily mean they think you are lying, they may just think you >>are plain incorrect. Your persecution complex is showing. > >I point out that several Freedom engineers agree with my assessment >of the project but keep their names in confidence because they ask >me to. Dennis strongly implies that I fabricated the letters or they >never existed. > >That goes beyond disagreement and calls into question my honesty. > > Allen No what I am saying is that I have seen no confirmation of what you have been saying and that , as I pointed out in other posts, I know far more people in both NASA and the contractors than you do. Every single one of those people cannot be lying that I am talking to. You have stated that the people that I talk to simply are the same old NASA peopel who want to cover their rears and keep their jobs. I am highly offended at this and since you do not want to: A) Give me those sources in confidence so that I can check them out through my sources at the centers in question or B) Explain yourself more fully why the truss or any other component "cant be built" which implies that. 1) All of my sources and all of NASA are liers 2) That you have some mystical source that knows everything that even the opponents of the program do not know, such as "it can't be built". Till you can prove any of the above, I put you in the same catagory as yellow journalism (Such as the NBC story of the exploding gas tanks) That deliberately prints things that are wrong simply to bolster your own position and you own pet projects. Or secondly and maybe more correctly, that you hear from people who are wrong, and since it supports your own biases, you easily believe what supports your own stands. If these are not the case then you are indeed a liar. I don't think this is true of you, I think it is more the case of living in self deception. Dennis, University of Alabama in Huntsville PS I have been doing some detective work in the past few days and I do know or at least have an explanation of why work package 2 (The Truss) is over budget. I also have a bunch of suggestions on how to lower both the cost of station construction and operations, that preserves the present configuration. (Meaning the Truss, and all of the other major components. ------------------------------ Date: Tue, 23 Feb 1993 02:44:46 GMT From: "Allen W. Sherzer" Subject: Nobody cares about Fred? Newsgroups: sci.space In article <1993Feb22.215423.29346@ke4zv.uucp> gary@ke4zv.UUCP (Gary Coffman) writes: >>Because when I asked an engineer working logistics at the Freedom program >>office why Freedom stationkeeping thrusters wouldn't be refueled in space >>he told me it was considered too dangerous. >Ok, but what did he *mean* by that? Too dangerous to Freedom to leave >years old valving and thrusters uninspected in orbit perhaps? No, he was very clear. He ment the risk to an astronaut re-fueling. This is one byproduct of the lack of EVA we have been doing. The thrusters in question are very reliable and don't need constant inspection to last years. >>The plan was to bring the whole mdoule back. This is far more expensive >>then refueling. >Is it? Well at over $10,000 a pound for launch costs I wold say yes. >is propellant storage, is it really that much more massive than refueling >tanks and transfer equipment? I haven't doen a life cycle cost estimate (nither has NASA) but I think it would especially if you left the equipment at the station. >Seems to me that since Shuttle is coming >down anyway, it might as well return the thruster modules for easier on >ground inspection, repair, and refilling. They rarely need this. >refueling tankage in any event. Maybe we don't need tankage. Maybe we use fuel from the OMS. >Perhaps the module changeout can even be >accomplished by the arm with no need for EVA and it's pre-breathe costs. Perhaps an automatic re-fueling could be done the same way. After all, the Russians do it that way and surely if they can do it we can. Allen -- +---------------------------------------------------------------------------+ | Allen W. Sherzer | "A great man is one who does nothing but leaves | | aws@iti.org | nothing undone" | +----------------------113 DAYS TO FIRST FLIGHT OF DCX----------------------+ ------------------------------ Date: Tue, 23 Feb 1993 02:28:53 GMT From: tomas o munoz 283-4072 Subject: Nobody cares about Fred? Newsgroups: sci.space In article <1993Feb22.215423.29346@ke4zv.uucp>, gary@ke4zv.uucp (Gary Coffman) writes: |> In article <1993Feb22.004727.1387@iti.org> aws@iti.org (Allen W. Sherzer) writes: |> >Because when I asked an engineer working logistics at the Freedom program |> >office why Freedom stationkeeping thrusters wouldn't be refueled in space |> >he told me it was considered too dangerous. |> |> Ok, but what did he *mean* by that? Too dangerous to Freedom to leave |> years old valving and thrusters uninspected in orbit perhaps? The danger aspect in refueling the Propellant Modules [PMs] on-orbit is that the program does not want the propellant, hydrazine, to leak all over station components or crew. Evidently, according to KSC, hydrazine loading is a bear of a task and the ground crew filling up these tanks have to wear EVA type outfits to even come near the stuff. Besides, the PMs are not designed at all for refueling on-orbit, no gas cap. |> >The plan was to bring the whole mdoule back. This is far more expensive |> >then refueling. |> |> Is it? If the module is really modular, it would seem a simple exercise |> to unplug it and plug in the replacement. This is exactly how PMs are going to be replaced, it is a slow and tedious task. Keep in mind though, you're exchanging huge PMs, not estes motors. |> Since the bulk of the thruster |> is propellant storage, is it really that much more massive than refueling |> tanks and transfer equipment? Actually, each PM can hold approximately 6200 lbm of usable propellant, while each PM has a tare weight of ~5000 lbm. Plans are to deliver two of these pups [~24000 lbm] each time and return two empty ones. |> Seems to me that since Shuttle is coming |> down anyway, it might as well return the thruster modules for easier on |> ground inspection, repair, and refilling. It would be bringing the empty |> refueling tankage in any event. Perhaps the module changeout can even be |> accomplished by the arm with no need for EVA and it's pre-breathe costs. Propellant deliveries are expensive because two PMs just about eliminate the Shuttle capability to deliver anything else. The module changeout is totally performed robotically / IVA. No crew outside while this is going on. -- ======================================================================== Tom Munoz | munoz@sweetpea.jsc.nasa.gov Thought for the day [plagiarized from someone else]: Engineers think equations are an approximation of reality. Physicists think reality is an approximation of the equations. Mathematicians never make the connection. ======================================================================== ------------------------------ Date: Tue, 23 Feb 93 14:14:00 EST From: Tom <18084TM@msu.edu> Subject: Replacing SSF >And this is what you want to replace SSF with? Don't we need to _have_ a(n) SSF, before we can talk about replacing it? I know it's a fedgov. project, but can we keep the double-speak to a minimum, please? It's at least as much of a hassle as anon. posts. -Tommy Mac ------------------------------------------------------------------------- Tom McWilliams | 517-355-2178 (work) \\ Inhale to the Chief! 18084tm@ibm.cl.msu.edu | 336-9591 (hm)\\ Zonker Harris in 1996! ------------------------------------------------------------------------- ------------------------------ Date: 22 Feb 93 16:26:00 GMT From: Roland Dobbins Subject: Spy Sats (Was: Are La Newsgroups: sci.space DA>Actually, I thought they had most of the basic stuff down pretty we DA>although some was certainly exaggerated at least a bit. Advanced K DA>are supposed to have "near real time" imaging capability, but that DA>does not translate into the continuous view they portrayed. The BI DA>however was that their operation was at NIGHT, and these satellites DA>placed into sun-synchronous polar orbits to optimize their daylight DA>I do not believe they have a significant nighttime imaging capabili DA> ........ DA>That report has been around a while... DoD's GROUND based tracking DA>were certainly used and perhaps even one of their airborne platform DA>it may just be the press jumping to conclusions to think any satell DA>involved. KH-11 orbits are not all that much higher than the shutt DA>would make an intercept pretty tight, and besides the optics are ob KH-11 is neither the latest nor the greatest "real-time" platform up there. --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 23 Feb 93 02:39:12 GMT From: Bill Higgins-- Beam Jockey Subject: Star vendor phone (was Re: I'm really embarrassed to ask this but...) Newsgroups: sci.space In article , henry@zoo.toronto.edu (Henry Spencer) writes: > In article schieb@shark.gsfc.nasa.gov (Brian D. Schieber) writes: >> I have this friend who conned me into finding out how her >>friend can name a star after her boyfriend. I TOLD YOU I >>was embarrassed... > > (If there isn't something about this in the FAQ, there ought to be...) There's not. For the record (this came up several times on sci.astro just before Valentine's Day) I called Directory Assistance for area code 800 and found that the number for International Star Registry is (800)282-3333. Be warned-- if you try to "buy" a star YOU WILL BE RIPPED OFF. As I'm sure many other posters will explain. But the business is perfectly legal, and the ISR delivers everything it promises. Separating fools from their money is an ancient practice, but I'm proud to say that my nation has refined it to a high art. > If you don't care about official status, I'd suggest buying a copy of > Astronomy (any good newsstand will have it) and carefully going through > the ads in the back -- that's what I'd do if I wanted to find one of > those outfits. Sounds like good advice. I have neglected to dig up the phone numbers of ISR's competitors. Should I apologize to them? Bill Higgins, Beam Jockey | "Enough marshmallows Fermi National Accelerator Laboratory | will kill you Bitnet: HIGGINS@FNAL.BITNET | if properly placed." Internet: HIGGINS@FNAL.FNAL.GOV | --John Alexander, leader of SPAN/Hepnet: 43011::HIGGINS | "disabling technologies" [*Aviation Week*, 7 Dec 1992, p. 50] | research, Los Alamos ------------------------------ Date: 23 Feb 93 02:09:32 GMT From: Bill Higgins-- Beam Jockey Subject: Textbook (was Re: How many RPM's around his own axle can human take?) Newsgroups: sci.space,sci.med In article <1993Feb22.195919.11887@kestrel.edu>, king@reasoning.com (Dick King) writes: >> [description of sensations in a certain amusement park ride deleted] > Riders get a bit dizzy on this ride and others, but this is a lot more > acceptable -- even desirable -- in amusement park rides than in space stations. Forgive me for going a little off-topic for both sci.space and sci.med, but I have a Neat Thing to mention. I'll quote a blurb I wrote to plug it in the newsletter *PyroTechnics*: ================== ROLLER-COASTER LABORATORY: Our friend Nathan Unterman teaches high-school physics, and has found the various rides in amusement parks to be excellent demonstration devices. So (like many physics teachers) he takes his students to the parks, where they measure accelerations and angles on a variety of rides. Nate's collected the experiments, lessons, and questions he's devised into a book called *Amusement Park Physics*. He covers dozens of rides, and even includes material to persuade your principal to let you take your class on a field trip! *Amusement Park Physics* is $18.95, book number 01-6071-K2, from: J. Weston Walsh PO Box 658 Portland, ME 04104-0658 (800)341-6094 ================== Some day here I will plug *PyroTechnics* itself, of which I am a Mismanaging Editor. Bill Higgins, Beam Jockey | "Treat your password like Fermi National Accelerator Laboratory | your toothbrush. Don't let Bitnet: HIGGINS@FNAL.BITNET | anybody else use it-- Internet: HIGGINS@FNAL.FNAL.GOV | and get a new one every SPAN/Hepnet: 43011::HIGGINS | six months." --Cliff Stoll ------------------------------ Date: 23 Feb 93 01:06:51 GMT From: 00wtripley@leo.bsuvc.bsu.edu Subject: what is the force of gravity Newsgroups: sci.space space is big ------------------------------ End of Space Digest Volume 16 : Issue 220 ------------------------------