博文
(2023-11-26 17:01:04)
我和我的中學同學。我們是男校，沒有沾花惹草的緋聞，隻有還像昨天一樣的記憶。
我把照片的日期刪掉了。
我是前排左1。應該是班裏生日最晚的，一百米跑得最慢的。
中間左2的同學在文革中去外地串聯“支左",大概是在四川”犧牲“了。那是文革中有一天，忽然間在大街上看到大幅標語“為xxx烈士報仇”才得知的。功課很好的一個同學，太可惜了[閱讀全文]
(2023-11-21 06:43:13)
Ifabatteryisonashelfandyoudonothingwithit,itsvoltagewilldropgradually,whichiscalledshelflifeofthatparticularbattery.Ihaverecordeddailyvoltagedropofdifferentrechargeablebatteriesformorethan10years.Ionlyputthefirsttwotothreeyear'sdataonthegraph,sincethesoftwarei'musingwillnothandlethatamountofdata.Thebatterieswhichvoltageswererecordeddailyare:1.Rayovacrechargeable,AAA,NiMH.1.2V2.EnergizerAAA...[閱讀全文]
(2023-11-19 14:15:12)
1.Lithiumionshelflife.Method:Justrecordthebatteryvoltageeachdayfor3years,usingamultimeter.Result:Lithium-ionbattery(9V)shelflifein3years:2.Lithium-ionchargingcharacteristics.Method:Charginglithium-ionbatterywithaconstantvoltageandaconstantcurrent,recordthevoltageandcurentinevery5minutes.Battery:NikonEN-EL3abattery(7.4V,1500mAh):WhydoIchoose8.4Vand0.6A?BecausethechargerfromNikonMH-18specified8.4Van...[閱讀全文]
(2023-11-19 07:41:29)
Lithium-ionbatteriesisalmosteverywherenowadays,inyourphone,inyourlaptop.Accordingtothelinkbelow,
https://www.google.com/search?q=the+life+of+lithium+ion+battery&rlz=1C1IHCB_enUS722US729&oq=the+life+of+lithium+ion+battery&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIKCAEQABgPGBYYHjIICAIQABgWGB4yCggDEAAYDxgWGB4yCAgEEAAYFhgeMggIBRAAGBYYHjINCAYQABiGAxiABBiKBTINCAcQABiGAxiABBiKBTINCAgQABiGAxiABBiKBTIN...[閱讀全文]
(2023-11-03 08:26:43)
Thegardenisinzone6. From:https://www.brecks.com/zone_finder Tomato,cucumber,pepper: A.Seedinginroom: OnMarch18,putseedsoftomato,pepper,cucumbersindirt. Soil: Inpapercups,fillthebottomhalfofthepapercupwithgardensoil,thenfillthemiddle1/4cupwithaseedingstarter(mixtureofsoilandfertilizer)andfillthetop1/4cupwithgardensoilagain. Mixthetoptwosoilsandburytheseedsinaround0.5-1c...[閱讀全文]
(2023-10-31 11:20:56)
Forclose-upphotography,someequipmentsareneededA.Macro(NikoncallsMicro)lenses:1.CanonMP-E65mmf/2.8,1-5x2.Canon60mmf/2.81x,internalfocus3.Tamron90mmf/2.8forNikon,1x4.Quantaray60mmf/2.8forNikon,1x5.Tamron60mmf/2.0forNikon1xinternalfocusAmacrolensisaspeciallens,youcouldtakearegularpictureaswellasaclose-uppicturewithit.Lifesizedobject'simagecanbetakenintoyourpicture.Mostmacrolenscanget1xsizeofyouro...[閱讀全文]
(2023-10-30 10:13:54)
OneWXCfriendaskedmetowritesomethingaboutWagner,thisiswhatIreadandtranslated.Thisarticlebasicallyisasummarybytranslationfromabookchapter【1】。 理查德瓦格納 （5/22/1813-2/13/1883） 貝多芬的音樂支配著19世紀上半期，瓦格納的音樂則籠罩著它的後半期。瓦格納的歌劇改編了音樂的進程。以超人自居的瓦格納，以自己的歌劇和實踐給世界創造了一個作為藝術家的英雄，而且到達了前所未有的程度。 [閱讀全文]
(2023-10-28 07:07:01)
Sonicboomisanimpulsivenoisesimilartothunder.Itiscausedbyanobjectmovingatthespeedofsound--about343meterspersecondor767milesperhouratsealevelandat68degreesFahrenheit. Whentwoobjectsreachthesamefrequency,aphenomenoninphysicscalledresonanceoccurs. Resonanceisaphenomenonthatoccurswhenanobjectorsystemissubjectedtoanexternalforceorvibrationthatmatchesitsnaturalfrequency.Whenthishappens,theobjec...[閱讀全文]
(2023-10-26 08:05:36)
AfriendofWXCaskedmehowtoconnecttwowireswithoutsoldering.Youfirsthavetofindthegaugenumberofyourwire.Thereisawirestandard,AmericanWireGauge(AWG).Forexample,thiscopperwireis8AWGfromthechart,sinceitsdiameteris3.26mm:Manyconnectorpartsarecolorcoded.Colorsonthewireconnectorsare.byBard:Youhavetohaveawirestriper,Iusenumber2and3often:1.For10-22AWG2.For10-20AWG3.For20-30AWGsolid,32-22AWGstranded4.For18-10AW...[閱讀全文]
(2023-10-25 05:34:46)
OnceIwenttoahorseracinggroundin2009.Ididnotbuyaticketforbetting,Ididnotwantto,stingyinonerespect,notinterestedinbettingorgamblinginanotherrespect.EvenIdidnotbuyaticket,Icouldstillgetintotheracingground.TheonlythingIwantedwastakingsomepictures(AllpicturesweretakeninbothJPGandNEF(NikonRAW)formats.AllpicturesweremodifiedfromNEFfilesandsavedasJPGfileswithnamesrelatedtoabriefdiscriptionofmodificationme...[閱讀全文]
