Physicist review: Linerman-Peter (Peter A. Lindemann / Edwin V. Gray)

Reviewer: PhD physicist (Step 2). Sources: facts.json, claims.md, both deep reads, digests, the page text of _text/free-energy-secrets-45a60f.txt (I re-read the passages quoted below), sites.md "Leads for review", research/ notes. Tags: [read], [web], [memory] with confidence, [calc] for my own arithmetic.

Source note. The folder holds two advocacy works by Lindemann (stake: he sells the book and runs free-energy.cc / Clear Tech, Inc.) and reprinted patents. No document in the folder is a test report. The folder name "Linerman" is a spelling of "Lindemann". Both works have usable text. The Gray circuit patents, Tesla patents, Vassilatos chapter and the 1994-95 thermodynamics articles were read from digests plus the page text I checked here, with no page-image deep read. Page-image checks cover only the motor patent (pp.74-81).

Corrections to Step 1

1. Gray's motor patent claims less than Step 1's claim 5 framing and less than Lindemann implies. The deep read is right: US 3,890,548 claims partial recovery of back e.m.f. into a second battery and says rotation continues "as long as d-c power is applied" [read: pp.75, 79, claim 1 pp.82-83]. I confirm this and keep the point that the press (Tattler: "no loss of energy in the system", Chalfin) and Lindemann go further than the patent.
2. The same is true of the circuit patents. US 4,595,975 says the tube circuit is "more efficient than that which is capable of being developed directly from the energy source" and that it returns "that portion of the initial energy ... not used by the inductive load ... to the same or second energy reservoir" [read: text p.111-112]. That is a regeneration claim, not a gain claim. Step 1's facts entry says this correctly; claims.md claim 1 mixes the patent with Lindemann's reading and should be read as Lindemann's reading only.
3. Lindemann rejects Gray's own explanation of the gain. Gray's patent says "the instantaneous peak apparent power is therefore, also very high". Lindemann writes: "This is clearly not true. I have tried dozens of methods to combine the voltage from one source with the current from another ... It doesn't work." [read: free_energy_secrets p.67, text lines ~2970-3000]. Step 1 had this right. I add that the mainstream agrees with Lindemann on this one point, and that Lindemann's replacement (an ether-borne "Electro-Radiant Event") has no content that can be measured.
4. "Dollard 400,000 V and over 4 A from under 2,000 W" (facts.json) is not Dollard's measurement in the passage I read. The caption (Fig. 24) says: photograph by Alison Davidson, 1986, supplied by Tom Brown; voltage "anyone's guess, but certainly must be approaching 400,000 volts"; "more than 4 amperes into the ground connection, measured on a radio frequency ammeter"; "less than 2000 watts from the wall" [read: p.66-67, text lines ~2270-2290]. The voltage is a guess by the author and the current is an RF ammeter reading. Whether the coil was Dollard's is not stated in this caption (it may be elsewhere in the book); I could not confirm it.
5. Patent number. Lindemann's list (p.8 of the ebook) gives Tesla "USP 685,957"; the digest of Appendix II lists 685,958 "Method of Utilizing Radiant Energy". Tesla's two 1901 radiant-energy patents are, as I recall, 685,957 (apparatus) and 685,958 (method) [memory, medium]. Not a verdict point; flagged so later steps do not call it an error by Lindemann.
6. "Seven families" in claim 3. Claim 3 lists seven categories and also names Bearden's MEG and others as examples; the count is correct. Note that Lindemann's own framing is "use a small amount of one form of energy to control or release a large amount of a different kind" [read: ebook p.1], which is a weaker claim than energy from nothing. The reviews below treat both forms.
7. Gray's death year. Lindemann: April 1989. KeelyNet mirror (2000): April 1993. VA-created Find a Grave and FamilySearch tree: 20 April 1990, Sparks NV [web: sites.md rows, https://www.findagrave.com/memorial/3813396/edwin-vincent-gray]. Step 1's text records 1989 only. The government-derived record is the one with a source I can name; both advocate accounts conflict with it.

Mainstream view in brief (stated once, used below)

• Energy conservation and the First Law. The energy a device delivers cannot exceed the energy it takes in from all sources over a complete cycle, plus any drop in stored energy. Regeneration (returning back-e.m.f. energy to a battery) is ordinary and real; it recovers part of the energy, never more than was supplied [read: Gray's own patent says "a part of the energy consumed"].
• Second Law / Carnot. A heat engine between reservoirs at T_hot and T_cold cannot exceed efficiency 1 - T_cold/T_hot. A heat pump can have a coefficient of performance (COP, heat moved per unit of work) greater than 1, but the work output of an engine running off the heat it moves is bounded by Carnot.
• Maxwell's equations and special relativity govern spark discharges, Tesla coils and capacitors. Disturbances travel at c in vacuum; nothing signals instantaneously. These are tested to very high precision [memory, high].
• Power versus energy. "Peak apparent power" (instantaneous voltage times instantaneous current) of a brief pulse is not an energy gain. Energy = integral of power over time; a megawatt for a microsecond is one joule.

Claim 1. Gray's "cold electricity" is Tesla's "radiant energy"; a capacitor-spark-gap tube circuit releases an Electro-Radiant Event that the output grids collect; Gray's own explanation of the gain is wrong.

a. Mathematics. Lindemann gives no equations for the circuit. The motor patent's geometry is internally consistent (13 1/3 degrees = 40/3, 27 steps per revolution, Table I checked against the page image) [read: deep read sections 3-4]. The "134 degrees" in Step 1 was an OCR artifact. The patent's own loose ends (450 for 240 degrees, an unreconciled capacitor count of 18 against one per coil, step-3 firing pair) do not affect any energy conclusion. I add two points. - Energy per pulse. The only electrical numbers in the motor patent are 12 V batteries and "18 capacitors 3500 volts each" [read: page image p.85, deep read]. With no capacitance given, energy per pulse is unknowable from the patent. For scale only, [calc] 1 microfarad at 3,500 V stores 0.5 x 1e-6 x 3500^2 = 6.1 J; 18 of them 110 J. - Lindemann's accounting. He says "all of the energy in his primary circuit is lost" in the spark gap, yet "this work output is 100 times greater than the energy lost to create it" [read: p.59-60]. If "energy lost" means the energy drawn from the battery (the only input he identifies), the second sentence asserts a 100-to-1 energy gain. If it means only the part dissipated in the spark gap, then the 100:1 compares output to a part of the input and is not a gain at all, because the capacitor's energy had to come from the battery first. The text does not say which, and gives no measurement of either quantity. As written it is ambiguous, not inconsistent.

b. Consistency with experiment. - A capacitor discharged through a spark gap into a coil with a diode returning the inductive kick to a battery is a known circuit family; recovering part of the coil's stored energy is established. Nothing in it needs a new energy source. - Lindemann's own built-to-patent motor "doesn't perform anything like what was described", produced no cold electricity and recycled "negligible" energy; "if you happened to get into the discharge path of those capacitors, you'd be thrown clear across the room" [read: free_energy_secrets p.8]. That is the inventor's most committed advocate reporting a failed copy. It is kept here as evidence against the motor claims, and as evidence of a hazard: charged 3,500 V capacitor banks are lethal. - The "cold" and "no shock" demonstrations [read: Tattler 1973, p.7, badly OCR-garbled; digest]: a hand in water beside a 40 W bulb. A very short unidirectional pulse delivers little energy to the body; Lindemann's chapter notes pulses under 100 microseconds feel painless [digest, Vassilatos excerpt]. Mainstream physics explains painless short, high-voltage pulses by pulse energy and by skin effect for high-frequency components [memory, medium]; the digest reports no durations or measurements, so the demonstration cannot show gain. - Energy bookkeeping for the motor. The 1973 Tattler reports a 6 V battery and capacitors at 3,000 V throwing a 1.25 lb magnet over 2 feet with "99%" returned [digest]. Lifting 0.57 kg by 0.6 m takes about [calc] 3.4 J. Charging a capacitor to throw it needs more than that, and 99% return is not an extraordinary claim for a capacitor-coil circuit with a diode. It is a claim about recovery, not gain, and it is within reach of ordinary physics, though no measurement is reported.

c. Tested? The record is thin and one-sided, and I give it all. - Test claimed in favour (Crosby Research Institute, 1973, via the Tattler, found by the Investigator). J. A. Maize, for Pan World Enterprises (an investor with a stake), ran the motor "into a 10-horsepower dynamometer load at 1,100 rpm, a power output of 7,460 watts"; batteries "only capable of 5,454 watts per hour"; "total battery power consumed is only 26.8 watts per hour"; "measured overall system efficiency exceeding 99%" [web: https://www.rexresearch.com/evgray/1gray.htm]. No Crosby document has been found. [calc] The numbers do not agree with each other. 7,460 W for 203 h is 1.51 MWh out. 26.8 W for 203 h is 5.44 kWh in, which matches the 5,454 Wh battery. So the stated ratio is 7,460/26.8 = 278 to 1, and the stated "efficiency exceeding 99%" cannot also be true (efficiency over 99% means output at most about 100% of input). Also, if 99% is returned to the battery, the circulating energy is 26.8 W / 0.01 = 2,680 W, smaller than the 7,460 W output. Either the units ("watts per hour" for energy) are garbled in the reprint, or the numbers were not measured. I cannot decide which from the source. The battery as described could supply 7,460 W for [calc] 5,454/7,460 x 60 = 44 minutes, not 203 h. - Other endorsements. Drs. Chalfin and Wester (Caltech, as stated by the Tattler): "Energy not used is returned to an accessory battery for reuse"; "There is no loss of energy in the system" [read: free_energy_secrets p.6 text]. The first sentence matches the patent (partial recovery). The second is a statement of an ideal, not a measurement. - Anonymous witness (KeelyNet mirror, 2000). A "12 hours" run in which the batteries ended "with more power than they had when the test started"; no instruments or data given [web: https://frienergi.alternativkanalen.com/Graymotor.htm]. One anonymous source, kept in the record. A lead-acid battery's open-circuit voltage after a load is removed recovers by several percent as its internal concentration gradients relax, and charge state is hard to read from voltage; a voltage-based reading can therefore overstate "more power" [memory, medium]. - Witnessed failure (AP, 7 July 1975, via rexresearch). Donald Cronin, TRW Systems: "It ran for about 10 seconds and then everything blew"; a Japanese team "packed it all up and went back to Japan" [web: same URL]. Documented in one published wire story; no second source found yet. It matches Lindemann's own failed copy. - Circuit claims (1980s tube). No test of any kind in the folder. The Investigator found a present-day replication forum (groups.io EVGRAY; Reddit r/plasma_pi "Modern Cold Electricity") that was not visited. I have no result from it and do not state that replications succeeded or failed. - Gray's 1980 "Regenerative Energy Recovery System" application (capacitor, inductive load, diode charging a battery) [web: rexresearch]. Gray's own description in 1980 was recovery of inductive energy, the same mechanism the patents state; it is consistent with the claim that Lindemann's "radiant energy" reading is not Gray's reading.

d. If true, what would change? If the 100:1 were a net energy gain against all measured inputs, the First Law would fail for a circuit made of capacitors, a spark gap and coils. That is the most thoroughly tested regime in physics. If "Electro-Radiant Event" is a real non-Maxwellian effect, then an extra term would be needed in the field equations for discharge in air and metals, which would have to show up in the very precise radio-frequency and breakdown literature.

Verdict (split). - Gray's patents' claims (partial recovery of back e.m.f., continuing battery input): Established as a conventional effect; the patent does not claim more. - The press/Tattler/Crosby gain claim for the motor (278:1, "99%"): Never properly tested (one reported, undocumented test by an interested party, whose numbers I find mutually inconsistent as printed; one reported failure; Lindemann's own copy failed). It was not dismissed without testing by mainstream bodies as far as the record shows; it was tested privately and the results were not published. - Lindemann's reading that the tube gives 100:1 via an Electro-Radiant Event: Not testable as stated (no defined measurement of input or output; the "event" is not defined in measurable terms). If read as a net energy gain, Refuted by calculation by energy conservation unless every input, including the battery energy, is metered.

Claim 2. Radiant energy is a longitudinal, instantaneous, ether-borne effect that does not obey Ohm's law, thermodynamics or Maxwell's equations, so output can far exceed primary discharge loss (about 100:1 Gray, 1000:1 Testatika).

a. Mathematics. No equations are offered. The text is verbal (Steiner's "Light Ether" and "Warmth Ether"; Light Ether "propagate[s] instantaneously ... is cool, and not wholly responsive to ... electrical resistance") [read: p.62-63, text lines ~3070-3095]. The 400,000 V / 4 A / 2,000 W figure mixes a guessed voltage and a reactive current with wall power. [calc] 400,000 V x 4 A = 1.6 MW, which Lindemann does not state. For a resonant coil, the current in the ground lead is largely reactive: apparent power (V x I) is not real power. A resonant circuit with quality factor Q stores about Q times the energy supplied per cycle and gives voltages and currents far above the source's, with no net energy gain. Tesla's "enormous magnification" is magnification of voltage and stored energy in a resonant circuit, not of delivered power [memory, high]. So the figure is not internally contradictory; it is not a power gain.

b. Consistency with experiment. Maxwell's equations describe spark and impulse discharge, including the radio-frequency radiation from them; special relativity's limit on signal speed is tested to high precision [memory, high]. Longitudinal electromagnetic waves do not exist in vacuum (Maxwell waves are transverse); they do exist in plasma and in conductors as plasma and charge-density oscillations, which travel slower than c [memory, high]. Tesla's observed effects (painless short impulses, lamps lit by capacitive coupling, "fractionation" with copper shorts) have conventional explanations in terms of pulse energy, displacement current and inductance of the short [memory, medium]. I cannot rule out that Tesla observed something I have not seen explained; but nothing in the folder gives a measurement of a deviation from Maxwell.

The Testatika figure "1,000 watts of light ... gain must be close to 1000 to 1" is read from the caption of a photograph, not from a measurement [read: p.60]. A Wimshurst machine produces, by hand-crank mechanical work, high-voltage charge of a few microamps; a bulb lit by it carries milliwatts at most [memory, medium]. A 1,000 W light would require 1,000 W of input; the machine "turning itself" is again asserted from the photograph. The Methernitha community (founder Paul Baumann; a Swiss religious cooperative) has not, as far as I can find, released the machine for independent measurement [web: https://en.wikipedia.org/wiki/Methernitha shows only the community; the page I fetched has no Testatika test material, so this is "no test found", not "tests failed"].

c. Tested? The ether/longitudinal claims have been tested in the general sense (Michelson-Morley lineage, modern cavity and cosmic-ray tests, the whole of radio engineering), not specifically for Lindemann's version. There is no controlled measurement of a 100:1 or 1000:1 gain in the folder. Testatika: no independent test found in my search (one page checked; limited).

d. If true. Maxwell's equations would need a second, instantaneous channel; special relativity's signalling limit would fail; the First and Second Laws would not hold for these circuits. Each of these is among the best-tested parts of physics.

Verdict (split). - Radiant energy as a longitudinal, instantaneous, ether-borne effect outside Maxwell: Tested, not supported in the sense that Maxwell and relativity have been tested everywhere this regime has been probed; Lindemann's statements are not defined well enough for a direct experiment (Not testable as stated for the "Light Ether" vocabulary). - Gain figures 100:1 (Gray tube) and 1000:1 (Testatika): Never properly tested (no measurement protocol, one photograph caption); as net energy gain, Refuted by calculation by conservation of energy. - Dollard-style coil figure (400 kV, 4 A, under 2 kW): Refuted by calculation as a power gain (apparent power is not real power); the effect itself (resonant voltage magnification) is Established.

Claim 3. Seven families of "free energy" devices are "proven beyond all reasonable doubt" though no test report is given.

Lindemann gives no test report for any of them; every figure is his assertion [read: deep read, ebook section 7]. I treat each family separately, with the exact figure and a calculation where one is possible.

Interested-party notes. Lindemann sells the associated books and runs the sites in the resource list; Xogen is a commercial firm; Meyer sold dealerships; these stakes are stated beside the claims.

a. Mathematics. Only arithmetic is given (350/20 = 17.5; 96/6 = 16). The arithmetic is right; the accounting is not (see the table). b. Experiment. Heat pumps with COP 3 to 5 are routine; COP 8 to 10 [read: p.3] for a heat pump moving heat across a small temperature difference is physically allowed [memory, high]. The jump from a heat pump COP to "350 hp of mechanical energy extracted" is where the claim breaks (see the table). c. Tested. Family by family as in the table. No test report in the folder for any family. d. If true. For the energy-from-nothing forms: the First Law and Gibbs-energy results of chemistry and thermodynamics. For the "control-and-release" form (small input steering a larger flow), nothing would change: that is how transistors, relays and heat pumps work, and the reader should not read Lindemann's "free energy" as a violation when he means that.

Verdict. Split by family as in the table. As a whole, "proven beyond all reasonable doubt": Tested, not supported for MEG and electrolysis; Refuted by calculation for the heat-pump figure, the Freedman alloy and the heater ratio as stated; Never properly tested for the rest; cold fusion Contested.

Claim 4. The First and Second Laws are not universal, so machines that draw heat or ether energy without a matching input are possible (Tesla's self-acting engine, Constable's etheric projectors, DePalma's rotating-magnet generator).

a. Mathematics. The 1994 article (digest only) argues that only the Carnot and Joule experiments stand and that heat is "a fourth state between matter and ether" [digest]. These are definitions and interpretation, not derivations. Constable's "hydroelectric gain of about 100,000:1 on a few hundred watts of input": if rain energy is counted, [calc] one million gallons falling a few hundred metres is of order 1e10 J, and the energy for that rain is the latent and solar energy already in the atmosphere, not the few hundred watts of the machine. The comparison counts the output of the atmosphere against the machine's input. If a machine triggers a release of energy already stored (as a match does), there is nothing to refute: that is a "control-and-release" statement. Nothing in the digest says which is meant. b. Experiment. Kelvin-Planck: no cyclic device does net work from a single heat reservoir. Tested by the whole of heat-engine and refrigeration practice and by statistical mechanics, which explains why [memory, high]. Tesla's "self-acting" engine takes heat from the ambient medium while refrigerating: the digest says Carnot and Kelvin apply "to living beings only" [digest]. That is a restriction no experiment shows. Doczekal (Austrian patent 155744, 1939), "beat the calculated Carnot maximum": a patent is the inventor's claim, and the folder gives no measurement. DePalma/Tewari: "less drag per unit output than a standard generator": a unipolar-generator (Faraday-disc type) with measurement problems around the reaction torque on the magnet and sliding contacts; the claim of lower drag is not supported by data in the folder [digest; memory medium for the generator physics]. A real, documented effect (Lenz-law reaction torque appears on the magnet if it rotates with the disc) is usually where such claims go astray [memory, medium]. c. Tested. The laws: extensively. The specific machines: Doczekal, Schaeffer/Serogodski and Wiseman are named as "working models" in one source (Lindemann's reprint of a 1995 article) with no data. DePalma: no independent test in the folder. d. If true. A perpetual machine of the second kind would require rewriting thermodynamics and statistical mechanics; the ether would require an energy reservoir outside of quantum field theory's vacuum, with no extractable energy in the vacuum ground state [memory, medium].

Verdict (split). The laws not universal: Tested, not supported. Tesla's self-acting engine as stated (continuous work from ambient heat alone): Refuted by calculation (Kelvin-Planck) unless a second reservoir exists. Constable and DePalma: Never properly tested (no data in the folder). The Doczekal and Tesla engines were reasonable historical ideas before the Second Law was cast as a general result (Tesla's era), but I do not rate them Historically superseded but instructive, because Lindemann presents them as current.

Claim 5. Gray's patents and press demonstrations (1973-76) are real but his venture was raided, prosecuted and ended; death in 1989 "under mysterious circumstances".

This is mostly a historical claim and is outside physics; I report what the physics can tell and what the record shows, with the Investigator's findings in full.

a-b. Mathematics, experiment. The patents are real: US 3,890,548 (issued 17 June 1975), 4,595,975 (1986), 4,661,747 (1987); the motor patent's geometry is internally consistent (deep read); torque at exact alignment is zero for symmetric repulsion, so rotation depends on firing a few degrees off alignment (the patent's 6 2/3 degree offset), which the KeelyNet source also reports ("fired a few degrees out of alignment") [read: deep read 5.5; web: KeelyNet mirror]. The patent itself claims only partial recovery and continuing battery input. c. Tested; the record. - Raid and charges. A 1975 AP wire story (DA's side, Deputy DA Mitchell Harris): prototype, plans and books seized July 1974; May 1975 charges: "one count of conspiracy to commit grand theft, eight counts of grand theft, and three counts of a securities violation"; about 800 shareholders since 1971; DA investigators invested and "later got it back"; it was "hard to find investors willing to press charges" [web: https://www.rexresearch.com/evgray/1gray.htm]. This confirms the raid independently of Lindemann, and the counts are more serious than his "grand theft ... dropped" and "two minor SEC violations". Lindemann's own account says the stockholders would not file charges for 8 months [read: p.13]. The outcome (dismissal, plea) is not in any source I have; LA Superior Court records would decide it. - Death. Three dates (1989 Lindemann; 1990 VA/FamilySearch; 1993 KeelyNet). I cannot weigh "mysterious circumstances" because the sole sources are advocates (Lindemann, one anonymous informant with three conflicting police stories) and a government burial record that gives date and place only. A Nevada death certificate would decide cause. - Absence from the record (anomaly). Gray's name leaves the press after 1976, patents come in 1986-87, the '975 patent lapsed for unpaid fees on 17 June 1990, two months after the VA death date [web: https://patents.google.com/patent/US4595975A/en]. Competing explanations for the silence: (i) commercial and legal failure after the prosecution (fits the 1975 AP story and the 800 investors); (ii) ordinary lack of working results, which fits Lindemann's own failed copy and the Cronin test; (iii) technology absorbed by Zetech, then "Western States" (an oil drilling firm per the anonymous source) with no public follow-up; (iv) suppression, which Lindemann asserts and no document in the folder shows. The patents were granted, which the suppression account has to explain. The fee lapse favours abandonment after death over a protected asset. USPTO assignment records, LA court files and the Nevada certificate would decide between them.

d. If true. For the motor to be what the Tattler says, the First Law would fail for a capacitor-coil motor. For the history, nothing in physics changes.

Verdict. Physics part (the motor as a 99% efficient, battery-saving, over-unity machine): Never properly tested (one undocumented interested-party test with inconsistent numbers; one witnessed failure; Lindemann's copy failed). The patent claims themselves: Established as conventional partial recovery. The history (raid, charges, end of venture): corroborated in part by the AP story; the outcome and the circumstances of death are open and outside the scale.

Claim 6. Free energy is kept from the public by four forces, really one force of "unspiritually motivated" behaviour, so the public must build devices itself.

a. Mathematics. None; an argument about finance and politics. Internal tension: he says a "conspiracy" explanation is superficial and then lists "murder and attempted murder of the inventors ... arson" as weapons of Forces 1 and 2 [read: ebook p.3-4]. b. Experiment. No evidence is offered for the murders, arson or patent denials: no named victims, dates or documents [read: deep read section 3]. Documented, general facts I know: national-security secrecy orders on patents exist (35 U.S.C. 181) [memory, high]; companies do buy and shelve patents [memory, high]; the patent office issued Gray's patents in 1975, 1986 and 1987, Tesla's patents and, as the list on p.8 shows, Lindemann's own sample of eight US patents, so patents on such devices are not generally refused. c. Tested. Not a testable physics claim. d. If true. Nothing in physics would change. The physical content of the claim is that devices exist that work; the argument for suppression is only needed if they do. So its weight depends on claims 1-4, and I have found nothing in the folder that makes them work as stated.

Verdict. Not testable as stated (physics); the evidential gap, record of one man's venture (claim 5), and Lindemann's call to "build it yourself" carries a real safety issue (3,500 V capacitor banks; Lindemann's own account of being "thrown clear across the room").

Leads from the Investigator that I weigh and keep

• Gray's foreign filings (CA 1030600, JP S50-74712) [web: Google Patents]: the texts may differ from the US text; not examined; the Japanese filing fits a Japanese backer (Pan World).
• The 1980 "Regenerative Energy Recovery System" application: Gray describes the mechanism as capacitor discharge through an inductive load with a diode returning energy to a battery; this is the plain, mainstream mechanism and differs from Lindemann's radiant explanation.
• Priority date 1983-12-16 for US 4,661,747, earlier than the 1984 application named in the book.
• Crosby/Maize test; Chalfin and Wester endorsements; anonymous 12-hour run; Cronin's failed test; the AP counts; death record 1990; '975 lapse 1990; Zetech and Western States (patent assignment unknown). All treated above.
• A present-day replication community (groups.io EVGRAY, Reddit r/plasma_pi), not visited by the Investigator. I make no statement about what they report.
• Lindemann's background: honorary D.Sc. in Complementary Medicine (Colombo, 1999-2000), Vice President of Borderland Sciences Research Foundation 1987-99, co-founder of Clear Tech, Inc. [web: https://wiki.naturalphilosophy.org/index.php?title=Peter_A_Lindemann]. He has a commercial stake; his degree is not in physics or engineering. He claims to have built and tested Gray's motor design himself; that statement is used above as evidence against the motor claims.

What would settle the questions

1. A metered test of the Gray tube circuit: measure the battery energy in (voltage and current integrated over time, including the vibrator and charging circuit), the energy delivered to a resistive load, and the energy returned to the second battery, with a stated duration. Any real net gain would show up as battery energy rising.
2. The Crosby/Maize report: ask whether it exists and what the units were.
3. LA County court file for the 1975 charges; USPTO assignment records; Nevada death certificate.

Web checks done (5 calls)

• DOE 2004 review and Google 2019 replication: https://en.wikipedia.org/wiki/Cold_fusion (checked, retagged [web]).
• Bearden MEG, no independent verification, APS statement: https://en.wikipedia.org/wiki/Motionless_electromagnetic_generator.
• Meyer court finding: https://en.wikipedia.org/wiki/Stanley_Allen_Meyer.
• Testatika: https://en.wikipedia.org/wiki/Testatika redirects to a Methernitha page with no testing information; check failed to give test results either way.
• A Thomas_Bearden page returned 404.
• Not checked on the web (kept as [memory]): the Wimshurst machine's typical output, battery open-circuit recovery, the second-law statements, secrecy orders (35 U.S.C. 181), Tesla patent numbers 685,957/685,958 (medium confidence).