On the principle of successive variations not always supervening at an early age and being inherited at a corresponding not early period of life we can clearly see why the embryos of mammals birds reptiles and fishes should be so closely alike and should be so unlike the adult forms. ~ Charles Darwin 1809 to 1882 - Naturalist Evolutionary Biologist
I have eaten 2/3 of 1/3 of my food ration. 7 remains. How much food did I start with? ~ Cuneiform Babylonian mathematics exercise 1900 – 1600 BC
Willard Frank Libby (1908–1980) USA – radiocarbon dating.
Steve Kirsch (born 1956) USA – Optical mouse.
Wallace H. Coulter (1913–1998) USA – Coulter counter (cell biology).
Eugen Baumann (1846–1896) Germany – PVC.
August Schrader (1820–?) USA – Schrader valve for Pneumatic tire.
Kees A. Schouhamer Immink (1946–) Netherlands – Major contributor to development of Compact Disc.
Christian Schnabel (1878–1936) German – simplistic food cutleries.
Hans Schrader (1924–1963) together with Franz Joseph Emil Fischer (1877–1947) Germany – Fischer assay (oil yield test).
Otto Schmitt (1913–1998) USA – Schmitt trigger (electronics).
Jonas Ferdinand Gabriel Lippmann (1845–1921) France – Lippmann plate Integral imaging Lippmann electrometer.
Kia Silverbrook (born 1958) Australia – Memjet printer world's most prolific inventor.
James Gregory (1638–1675) Scotland – Gregorian telescope.
Ruth R. Benerito (1916–2013) USA – a.o. Permanent press (no-iron clothing).
David Chaum (born 1955) USA – a.o. Digital signatures ecash.
Shintaro Uda (1869–1976) together with Hidetsugu Yagi (1886–1976) Japan – Yagi-Uda antenna.
Simon Stevin (1548–1620) Netherlands – land yacht.
Motorins Ivan Feodorovich (1660s–1735) and his son Mikhail Ivanovich (?–1750) Russia – Tsar Bell.
Josip Belušić (1847–?) Croatia – electric speedometer.
Valentyn Glushko (1908–1989) Russia – hypergolic propellant electric propulsion Soviet rocket engines (including world's most powerful liquid-fuel rocket engine RD-170).
David Schwarz (1852–1897) Croatia – rigid ship later called Zeppelin.
Macroscopic objects as we see them all around us are governed by a variety of forces derived from a variety of approximations to a variety of physical theories. In contrast the only elements in the construction of black holes are our basic concepts of space and time. They are thus almost by definition the most perfect macroscopic objects there are in the universe. ~ Subrahmanyan Chandrasekhar 1910 to 1995
What is possible in the Cavendish Laboratory may not be too difficult in the sun. - Sir Arthur Eddington 1882 to 1944 Astronomer Physicist Mathematician
Before the Copernican revolution it was natural to suppose that God’s purposes were specifically concerned with the earth but now this has become an unplausible hypothesis. If it is the purpose of the Cosmos to evolve mind we must regard it as rather incompetent in having produced so little in such a long time. ~ Bertrand Russell 1872 – 1970 - Mathematician and Philosopher
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
When you hear a physicist invoke the uncertainty principle keep a hand on your wallet. ~ David Griffiths b. 1942
The development of biology is going to destroy to some extent our traditional grounds for ethical belief and it is not easy to see what to put in their place. ~ Francis Crick 1916 – 2004 Molecular Biologist
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
- Connectivity: Wirelessly connect and control a wide range of compatible smart devices from 40+ partner brands, including voice assistants, lights & switches, speakers, cameras, sensors and more
- Home Automation: Teach the hub your Good Morning, Goodbye, Goodnight, and other routines to automatically turn devices on or off throughout the day
- 24/7 Monitoring: Receive app alerts from connected devices when there's unexpected activity in your home.Material: Plastic
- Voice Controls: Use voice commands to control connected devices using SmartThings and the Google Assistant
- Improved DIY Solution: Improved guided onboarding for easier setup. Hub connects with Wi-Fi so does not need to be connected to an Ethernet cable
- VOICE ACTIVATED: With the Philips Hue Smart Hub, add up to 50 Philips Hue smart lights of your choice with this ZigBee-controlled hub necessary for voice control with Alexa, Apple HomeKit, or Google Assistant
- CONTROL YOUR SMART LIGHTS FROM ANYWHERE: The heart of your Philips Hue system, this hue hub also enables you to control all of your Philips Hue products via the Philips Hue app, even when you're away from home
- FULLY AUTOMATE YOUR SMART HOME: Enhance your Philips Hue system by setting timers and alarms, connecting to a variety of apps, dimming the smart lights and more (cannot be used with conventional dimmers)
- EXPAND YOUR ECOSYSTEM: Easily expand your smart lighting system with Philips Hue accessories (sold separately), such as a Hue Dimmer Switch, Hue Tap, or Hue Motion Sensor. Pair it for home automation with your existing Nest or SmartThings system. Control your hue lights by connecting the Hue Hub to your router with the included ethernet network cable. This box also includes one Philips Hue Hub, power adapter, manual, and two-year warranty for the full Philips Hue experience
- CROSS-DEVICE COMPATIBILITY: HomeKit compatible iOS 9 or later. iPhone:4, 4S, 5, 5S, 6, 6 Plus, 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone Xs, iPhone Xs Max, iPhone Xr, iPod touch: 5th generation.Network Connectivity:Wireless A,Wireless B,Wireless G,Wireless N
- Connect your Home: The brains of the Sengled system, the hub enables you to control up to 64 Sengled Smart lights and accessories with the hub. A hub is necessary to use a voice assistant, like Alexa and Google Assistant
- Easy to Install: Connect the Sengled Smart Hub to your router using the included Ethernet cable and use the in-app guide to set up
- Home Automation: Easily extend your smart home system across every room by connecting Sengled Smart LEDs and accessories to the hub, then automate
- Voice control: Connect the hub to Alexa or Google Assistant-enabled devices and use your voice to control your Sengled Smart LEDs and accessories
- One simple app: Control all your Sengled smart devices using the Sengled Home app (iOS/Android.) Set schedules, group devices and more to control all of your home's Sengled smart products