A cylinder of air reaching to the top of the atmosphere is of equal weight with a cylinder of water about 33 feet high. ~ Isaac Newton 1642 to 1727
Although the alternate ‘wax and wane’ cycles are the rule rather than the exception in all fields of human endeavor in that of biological sciences the ‘wane’ is all too often indicative of a justified loss of faith in the rational and methodical approach that had at first raised so much hope. ~ Rita Levi-Montalcini 1909 to 2012 Neurobiologist
John Herschel (1792–1871) UK – photographic fixer (hypo) actinometer.
Miriam Benjamin (1861–1947) Washington D.C. – Gong and signal chair (adopted by House of Representatives and precursor to flight attendant signal system).
Adolf Gaston Eugen Fick (1829–1901) Germany – contact lens.
René Laennec (1781–1826) France – stethoscope.
Max Bielschowsky (1869–1940) Germany – Bielschowsky stain (histology).
Otto Wichterle (1913–1989) Czechoslovakia – soft contact lens.
John Frederic Daniell (1790–1845) United Kingdom – Daniel cell.
John Landis Mason (1826–1902) USA – Mason jars.
Georgy Beriev (1903–1979) Georgia/Russia – Be-series amphibious aircraft.
Spede Pasanen (1930–2001) Finland – a.o. ski jumping sling boat ski.
Henry Burden (1791–1871) Scotland and USA – Horseshoe machine first usable iron railed road spike.
Hub van Doorne (1900–1979) Netherlands Variomatic continuously variable transmission.
Frank Hornby (1863–1936) UK – invented Meccano.
Nicolas Florine (1891–1972) Georgia/Russia/Belgium – first tandem rotor helicopter to fly freely.
Alfred P. Southwick (1826 – 1898) USA - Electric chair.
Isaac Singer (1811–1875) USA – sewing machine.
Muhammad al-Fazari (d. 796/806) Persia – astrolabe.
Gersh Budker (1918–1977) Russia – electron cooling co-inventor of collider.
Justus von Liebig (1803–1873) Germany – nitrogen-based fertilizer.
Alberto Gianni (1891–1930) Italy – Torretta butoscopica.
In practical applications we are concerned only with comparatively small numbers; only stellar astronomy and atomic physics deal with ‘large’ numbers and they have very little more practical importance as yet than the most abstract pure mathematics. ~ G. H. Hardy 1877 – 1947 - Mathematician
Geometry inasmuch as it is concerned with real space is no longer considered a part of pure mathematics; like mechanics and physics it belongs among the applications of mathematics. ~ Hermann Weyl 1885 to 1955 - Mathematician and Theoretical Physicist
Division is esteemed one of the busiest operations of Arithmetic and such as requireth a mind not wandering or settled upon other matters. ~ Thomas Hylles The arte of vulgar arithmeticke 1600 - Mathematician
Surely it is not knowledge but learning; not owning but earning; not being there but getting there; that gives us the greatest pleasure. ~ Carl Friedrich Gauss 1777 – 1855 - Mathematician and Physicist
Chemistry is necessarily an experimental science: its conclusions are drawn from data and its principles supported by evidence from facts. ~ Michael Faraday - 1791 to 1867
The ultimate truths of mathematics then cannot be established by any experimental proof that the deductions from them are true; since the supposed experimental proof takes them for granted. ~ Herbert Spencer 1885 – 1977 - Philospher
Actually everything that can be known has a Number; for it is impossible to grasp anything with the mind or to recognize it without this. - Philolaus c. 470 – c. 385 BC Scientist and Philosopher
- 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