Hello!! It's Joseph

  2011 on left, 2015 on right Gaggia Classic 2015 is a cost-reduction version of Gaggia Classic, after Philips Saeco bought Gaggia in 2009 major difference is in the boiler: Classic(pre-2015), Baby Twin, Baby Class, New Baby, Evolution Espresso : UNI4514 boiler Classic(post-2015)Espresso Dose, Espresso Color, Espresso Pure : Stainless Steel UNI 4514: food-grade aluminum material  coffeeforum 101machines_info ( Dmitry is a boiler lover, over thermoblock. So this affects how he rates the machines)   how to spot a 2015 Gaggia Classic: pushbuttons instead of rocker switch from the label, it's a 1050 W  missing drain pipe, on left of group head ( cos it does not have a 3 way solenoid valve) but will this make a wet puck after shot? 2015 very is using a stainless steel boiler and plastic steam valve ( but you have to open the top cover to see) 9 min auto-off timer ( for EU versions, due to power saving regulations) the stainless steel boiler and so called OPV reminds you of Saeco(Philip

  MPC

  industrial hk 長春社 hkreminiscence

  facebook video how DE1 measures:   five innovations water mixing smart pre-infusion flow profiling hot water, temperature and volume controlled ( eg for americano ) powerful steam with half the water espresso hydraulics

why: to prevent channeling how: 9 methods from la marzocco used before tamping some claim stockfleth method is most useful   but IMHO,  WDT or just paperclip is just as effective how to easily make coffee distribution tool:     some tools on market ( just a toy?, pro tool for barista?) ???, BT wedge, ??? twister Ona Coffee distributor so far you don't find much how the puck will look like after pulling the shot. Why? bplus

There are 3 poles on the left side of ascent module, and 2 poles on right side.  It looks like spatial diversity antenna, or conical spiral logarithmic antenna   the purpose may be used for positioning, eg, during rendezvous docking. The ascent module has to dock with orbiter very precisely, on the scale of centimeter, or millimeter. Upon successful capture of ascent module, the moon samples can then be transferred to re-entry capsule ( located inside the orbiter)  or it is a periscope( backup periscope bck-4), as in soyuz spacecraft ? is it RF metrology antenna or FFRF (formation flying Radio Frequency) sensor in PRISMA  from France , Swedish Space Corp or CNES? the main purpose is for automatic rendezvous of two spacecrafts   If it is really a FFRF for rendezvous, why are they mounted on one side of spacecraft, rather than the "mating" side? TT&C antenna? Reference: eoportal Space tracking note

Luna 16 mission was in 1970 change 5 T1 luna 16 zarya drewexmachina  

 from lambdaconcept     ECPIX-5 comes in two FPGA variants: LFE5UM5G-45F (45K LUTs) or the larger LFE5UM5G-85F (85K LUTs).     * Lattice ECP5-5G FPGA with 5Gbit/s SERDES.     * 4Gb (256MB) of DDR3L RAM     * 256Mb (32MB) Quad-SPI Flash     * Built-in JTAG and serial USB interface     * USB-C port for USB 2 and USB 3 operation     * HDMI 1.4b transmitter     * Gigabit Ethernet     * Full size SATA port     * microSD (UHS-II capable)     * Four RGB LEDs     * Eight industry standard PMOD connectors Applications:     * nMigen/Migen/LiteX programming     * USB 2/USB 3 prototyping     * Game console emulation     * Software Defined Radio     * Customizable RISC-V SoC  using open source toolchains, and schematics available.  -45F and -85F is priced at 99gbp and 149 gbp

 11 Oct, 2020 CNSA website is down only Beijing is able to access it 11 Dec 2020 18:00 the site is now back to normal:   one thing that is bothering me is that they are still using the unsafe http protocol, instead of https ( secure ) well, 衛星數據查詢 is now access denied, or forbidden(403) 21 may 2021, the website is down again

it stands for planetary data system   how it works NASA data archive examples it contains data with cartographic ( think maps) and topographic info somewhat similar to FIT and SER files from ISRO introduction : NASA planetary missions in the scientific user community. - Adopted by ESA, JAXA and other space agencies across globe. - Features of PDS Self structured, documented & Peer Review Data Sets Long-term access and usability of data - ISRO had also adopted PDS3 for following missions Chandrayaan-1 Mars Orbiter Mission. - ISRO will adopt PDS4 for Chandrayaan-2 and continue PDS4 for future planetary missions. PDS Home Page (http://pds.nasa.gov)   wiki

木星与土星会合周期差不多为20年，此次“合”是自1623年7月17日以来最接近的一次，在“合”时两者仅0.10421度。下一次木星合土星发生在2040年11月5日，不过间隔将比这次更宽，约1.2度。若要看到同样接近0.1度的“合”就要等到2080年3月15日了，所以今年这次机会很难得！  this is from Dr. Sebastian Voltmer, taken in 2007 using a C11 for 21 dec 2020: it will be as close as 0.06 arc min 21 Dec 19:00 (UTC+8), looking west: skyatnight space   reference: what is conjunction,甚麼是相合: 赤道坐標  視赤經相同 ，或視地心經度（apparent geocentric longitude) 有趣天文現象

  coarse grind 26 g coffee 100 cc water, brew in four minute. cover the brew for two minutes ( sort of tea infusion method) in between add 100cc ater to make up the volume 1: 7.7 coffee to water ratio !!! another way of making a matsuya style i would say, it's a mixture of pourover and french press and 絲襪奶茶. It is way to match with dark japanese style roast coffee. Aiming to make a japanese style flavoured coffee: clear, free from astringent(bitter) and other harsh flavours. kknews hiro-shio  flavorcoffee 027hoh  

  at perihelion on 12 Dec, 2020 marked as "unobservable" in Hong Kong : (   in-the-sky JPL small bodies database

it was open source software provided by NASA, in sourceforge tutorial from NASA NTRS DSLWP-B satellite DSLWP amateur radio team Nico Janssen's Amateur Deep Space Tracking Nico Janssen's twitter PA0DLO Lucky-7 orbit determination Thinking System and GMAT API  matlab interface  GMAT wiki from atlassian 

trying to track chang'e 5 with some online websites 2020-087A = NORAD 47097 = Chang'e 5 s/c find TLE from satcat on celestrak celestrak n2yo   btw, these 2 websites are mainly for earth bound (geo-centric) satellites. So when chang'e 5 is moving away from earth, they are less accurate asof 26 Nov, Chang'e 5 is already 362,461 km from earth  all in all, for Chang'e 5 and similar interplanetary spacecrafts, it is much better to follow twitter from Scott Tilley , Cees Bassa , Daniel Estevez ,  UHF Satcom , J McDowell or r00t heavens-above weibo: China航天 空天逐夢 9ifly cascwx casaclep zgjw_81 others: sixth tone TLE faq: Celelstrak: how to convert TLE to some other formats

- go to projectpluto website, pseudo MPEC for recent added objects. find the lines which contain Change'5. you will find Chang'e 5(2020-87a) and Chang'e 5 booster (2020-87a) - click the link which has name Chang'e 5   ( 20087a in this case)  - manually copy the MPC data under astrometry section - goto to online find_orb page, and paste the data, and click "Compute orbit and ephemeridis" button   if everything is done as it should, you will the generated output as below   - click "Orbit Simulator View" button here you are, and have fun: or just simply click  this link

 Chang'e 5 is not on JPL Horizons database. this is just experimental !!!   by using data from space-track.org and with help of JPL Horizons,  Norad id: 47097 intl code: 2020-87a USER DATA {Unspecified by user} Wed Nov-25 02:56:38 Local ID: -847097 (TLE ID = 47097) Geocentric SGP4/SDP4 Two-Line Elements (TLEs): 1 47097U 20087A 20329.06000000 -.00021863 00000-0 00000+0 0 9996 2 47097 21.2990 2.3420 9675959 227.8890 6.2610 0.09489912 28     ******************************************************************************* Ephemeris / WWW_USER Wed Nov 25 02:56:38 2020 Pasadena, USA / Horizons ******************************************************************************* Target body name: {Unspecified by user} (-847097) {source: USER-INPUT TLE} Center body name: Earth (399) {source: DE431mx} Center-site name: GEOCENTRIC ******************************************************************************* S

  PCA plot based on sensory data after subtraction of intensity, and projections of flavor compounds. The longer an arrow is, the better it is represented on the PCA plot.    From Illy, on changes after roast   researchgate semanticscholar    Kaffelogic .   mdpi     goodscent onlinewiley

 some new models arrive in 2020: The maximum fan speed: Ikawa: 30000 rpm Kaffelogic: 14700 rpm. They coined it transitional fluidisation ( glass flow + fluid flow) JMS-272 1600w 250 deg c 100g 37.5 x 14 cm there's a narrower chamber for SR series,  they measure airflow to increase from 2.1 to 4.3 CFM pros and cons of fluid bed 

 arecibo       Single radio elements have limited spatial resolution (the diffraction limit of the telescope).  This diffraction limited resolution is proportional to wavelength (as it is also for optical telescopes, but it seems more extreme for radio telescopes due to the huge range of wavelengths over which they are typically used).  The diffraction limit for a circular aperture of diameter D is q ~ 1.22 l/D, where q is the angular diameter of the Airy Disk at the half-power point (the full-width-half-maximum, or FWHM) in radians.  At a frequency of 5 GHz, even the Arecibo dish has an angular resolution of only about 50 arcseconds.  The fully-steerable GBT has a resolution at this frequency of only 150 arcseconds.     Because of the limited spatial resolution of single element telescopes, sophisticated techniques have been developed to combine single elements into multiple-element arrays, which work together to form a single telescope.  In such arrays, the spatial resolution is dete