Suppose we have an unknown number of objects. When counted in threes 2 are left over when counted in fives 3 are left over and when counted in sevens 2 are left over. How many objects are there? ~ Sunzi The Mathematical Classic of Sunzi - Chinese mathematics problem from c. 450 AD
The chemists are a strange class of mortals impelled by an almost insane impulse to seek their pleasures amid smoke and vapor soot and flame poisons and poverty; yet among all these evils I seem to live so sweetly that may I die if I were to change places with the Persian king. ~ Johann Joachim Becher - 1635 to 1682
Tim Berners-Lee (born 1955) UK – with Robert Cailliau the World Wide Web.
Heron (c. 10–70) Roman Egypt – usually credited with invention of the aeolipile although it may have been described a century earlier.
Guy Severin (1926–2008) Russia – extra-vehicular activity supporting system.
Hermann von Helmholtz (1821–1894) Germany – Helmholtz pitch notation Helmholtz resonator ophthalmoscope.
Ibn Samh (c. 1020) Middle East – mechanical geared astrolabe.
Dean Kamen (born 1951) USA – Invented the Segway HT scooter and the IBOT Mobility Device.
Gleb Kotelnikov (1872–1944) Russia – knapsack parachute drogue parachute.
Charles Lindbergh (1902–1974) USA – organ perfusion pump.
Édouard Branly (1844–1940) France – the coherer the first widely used detector for radio communication..
William Murdoch (1754–1839) Scotland – Gas lighting.
Sten Gustaf Thulin (around the 1960s) Sweden– disposable Plastic shopping bag.
Jonas Edward Salk (1914–1995) USA – injection Polio vaccine.
Adolf von Baeyer (1835–1917) Germany – a.o. Fluorescein synthetic Indigo dye Phenolphthalein.
Reginald Fessenden (1866–1932) Canada – two-way radio.
Alfred P. Southwick (1826 – 1898) USA - Electric chair.
Charles Xavier Thomas de Colmar (1785–1870) France – Arithmometer.
Andrei Sakharov (1921–1989) Russia – invented explosively pumped flux compression generator co-developed the Tsar Bomb and tokamak.
Ole Kirk Christiansen (1891–1958) Denmark – creator of LEGO.
Vladimir Shukhov (1853–1939) Russia – thermal cracking (Shukhov cracking process) thin-shell structure tensile structure hyperboloid structure gridshell modern oil pipeline cylindric oil depot.
Paul Winchell (1922–2005) USA – the artificial heart.
An experiment is a question which science poses to Nature and a measurement is the recording of Nature’s answer. - Max Planck 1858 to 1947 Theoretical Physicist
By ‘life ’ we mean a thing that can nourish itself and grow and decay. - Aristotle 384 BC to 322 BC Scientist Philosopher
The literary convention that numbers less than 10 should be given in words is often highly unsuitable in mathematics… The excessive use of the word forms is regrettably spreading at the present time. ~ J.E. Littlewood 1885 – 1977 - Mathematician
This most beautiful system of the sun planets and comets could only proceed from the counsel and dominion of an intelligent and powerful Being. And if the fixed stars are the centres of other like systems these being formed by the like wise counsel must be all subject to the dominion of One; especially since the light of the fixed stars is of the same nature with the light of the sun. ~ Isaac Newton 1642 to 1727
In our work we are always between Scylla and Charybdis; we may fail to abstract enough and miss important physics or we may abstract too much and end up with fictitious objects in our models turning into real monsters that devour us. ~ Murray Gell-Mann b. 1929
Did the genome of our cave-dwelling predecessors contain a set or sets of genes which enable modern man to compose music of infinite complexity and write novels with profound meaning? …It looks as though the early Homo was already provided with the intellectual potential which was in great excess of what was needed to cope with the environment of his time.” - Susumu Ohno 1928 to 2000 Geneticist
Progress is made by trial and failure; the failures are generally a hundred times more numerous than the successes ; yet they are usually left unchronicled. - William Ramsay 1852 to 1916 Chemist
- Main Function:G18 is merely gsm alarm system,G183 update version work with 3G gsm sim card DIY home security alarm system,which can either work in standalone mode without sim card or a standard size sim card(not micro and nano) to call/text up to 6 phone numbers via cellular network,AT&T,T-mobile sim card recommend.As 2G will be no longer available in the USA in 2019,AT&T has already shut off 2G service in 2017.3G alarm system more reliable than the wifi one in case of the internet failure.
- APP Control burglar system:First download app(search "G18 alarm system" at google or iphone app store) free and register an account,insert a sim card to alarm keypad,remote control the security system by text in APP on your smartphone from anywhere at anytime.PIR motion sensor detect any suspicious movement or activity,Door/window sensor detect any forceful break-in.When detectors are triggered,the alarm host will receive the alarm alert meantime call your phone,disarm it by app/sms/call
- Brief Description:This is an indoor basic security alarm system kit complete with fully programmable main unit and sensors,can be used directly after unplugging insulation sheet to protect home,office,shop apartment,business;DIY supportable 99 wireless zones up to 150 remote key fobs and 150 sensors,add more sensors as detailed need such as gas detector,water leaking sensor to provide all-around reliable protection.Additional Sensors can be find in our shop or we can customize the kits for you.
- Humanized Design: Easy operation with TFT color touch screen,voice prompt design during setting;Built in 3.7V 800mAh rechargeable lithium battery that can last about 6-8 hours with full power, it will change to use battery to work in the case of power failure, just make sure that switch is on. Other useable features such as arming delay, keypad lock, timing arming etc.
- Customer Service: 12-month warranty, professional technical support and friendly responsive customer service within 24 hours. If you have any questions, welcome to contact us via amazon emails or seach "KERUI G183 security alarm system introduction" on youtube.
- ALL-IN-ONE HOME AUTOMATION: Make your house a smart home in minutes, one room at a time. Simply replace your Dual Switch (double gang) light switch with NuBryte Touchpoint. Connect & Protect, from any NuBryte console, or remotely via Nubryte APP.
- HOME SECURITY: Detract and deter with 100 decibel siren and flashing overhead lights. Instant video alerts to your phone when triggered (with NuBryte APP). Built-in wide-angle camera and advanced motion detection up to 30'. No Contracts/Monthly Fees.
- SMART LIGHTING: Touch-Free light control, and 5 easy-to-use lighting automation and digital dimming modes. Motion-based on/off, Morning Wake Up, Bedtime dimmer, Night light and Vacation lights. Works with standard dimmable bulbs.
- INTERCOM: Combine 2 or more Touchpoint consoles for an instant home intercom system. (WiFi)
- FAMILY HUB: Indoor/Outdoor Temperature & Humidity, 5-Day Weather Forecast, Calendar, Notifications and Event Alerts, Energy Monitoring, and more! Now, with Amazon Alexa voice control with Echo, Dot, and Tap!
- Updated 2015 Model with Newest Firmware and Software
- Wifi Connectivity for Remote and Monitoring Options (Requires Monthly Fee)
- Zwave ready for Control of Lights, Door locks, Thermostats and Garage Doors
- Award Winning Technology and Design
- Includes: (3) 5816 Door/Window Transmitters, (1) 5834-4 Four-Button Wireless Keyfob (1) 5800 Pir-Res Wireless Motion Detector (1) Wifi Module (1) Zwave Module (1) 4gl GSM Cellular module