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
There are many ways of knocking electrons out of atoms. The simplest is to rub two surfaces together. ~ Fred Hoyle 1915 to 2001
David Schwarz (1852–1897) Croatia – rigid ship later called Zeppelin.
Charles Thomson Rees Wilson (1869–1959) UK – Cloud chamber.
Giovanni Luppis or Ivan Vukić (1813–1875) Austrian Empire (ethnical Croatian from Rijeka) – self-propelled torpedo.
James Dewar (1842–1923) UK – Thermos flask.
Gerhard Sessler (born 1931) Germany – foil electret microphone silicon microphone.
Léon Theremin (1896–1993) Russia – theremin interlace burglar alarm terpsitone Rhythmicon (first drum machine) The Thing (listening device).
Anders Celsius (1701–1744) Sweden – Celsius temperature scale.
Kary Mullis (born 1944) USA – PCR.
Hippolyte Mège-Mouriès (1817–1880) France – margarine.
Karl Drais (1785–1851) Germany – dandy horse (Draisine).
Waldemar Haffkine (1860–1930) Russia/Switzerland – first anti-cholera and anti-plague vaccines.
Dudley Allen Buck (1927–1959) USA – a.o. Cryotron content-addressable memory.
Antoni van Leeuwenhoek (1632–1723) The Netherlands – development of the microscope.
George Eastman (1854–1932) USA – roll film.
Ivan Knunyants (1906–1990) Armenia/Russia – capron Nylon 6 polyamide-6.
Adolph Giesl-Gieslingen (1903–1992) Austria – Giesl ejector.
Henry Shrapnel (1761–1842) UK – Shrapnel shell ammunition.
Georges Lakhovsky (1869–1942) Russia/USA – Multiple Wave Oscillator.
Frederick Sanger (1918–2013) USA – Sanger sequencing (= DNA sequencing).
Corradino D'Ascanio (1891–1981) Italy – D'AT3 helicopter; Vespa scooter.
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
The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time. - Subrahmanyan Chandrasekhar 1910 to 1995 Astrophysicist
In its efforts to learn as much as possible about nature modern physics has found that certain things can never be “known” with certainty. Much of our knowledge must always remain uncertain. The most we can know is in terms of probabilities. ~ Richard Feynman 1918 to 1988
Nearly 2.5 billion years of prokaryotic cells and nothing else – two-thirds of life’s history in stasis at the lowest level of recorded complexity… Why did life remain at stage 1 for two-thirds of its history if complexity offers such benefits? ~ Stephen Jay Gould 1941 to 2002 - Paleontologist
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
Primates are visual animals above all and anatomical work in particular is as much pictorial as verbal. ~ Stephen Jay Gould 1941 to 2002 - Paleontologist
We are storytelling animals and cannot bear to acknowledge the ordinariness of our daily lives. - Stephen Jay Gould 1941 to 2002 Paleontologist
- On demand access - access 720p HD live video at any time from your smartphone or the web, with built-in night vision.
- Personalized voice message - a recorded message will play when you can't answer the door.If the lights are solid blue, please type + , choose Wireless Device instead of Zink to find the doorbell.
- Answer the door wherever you are - see and speak to visitors directly from your smartphone.If all the lights are flashing green, please check your smartphone and make sure it is connected to a 2.4Ghz wifi network. If your router is a dual band router, meaning it supports both 5.0Ghz and 2.4Ghz networks, be sure the SSID (network name) is different for each. You will need your mobile device to be connected to the 2.4Ghz during setup. Passwords and SSID names must be a minimum of 6 characters.
- Smart motion detection - receive an alert and a recorded video clip whenever motion is detected.
- Easy setup - use existing wiring for quick installation and connect to WiFi using the free Zmodo app. Use Beam to easily set up Greet. With Beam Connect, setup is as simple as telling the app how many devices are powered on and ready to pair. If your router supports AC, you will need to disable that during the setup. In your router, you may need to take it out of mixed mode, or put it into legacy mode.
- See, hear and speak to anyone at your door from your smartphone, tablet or PC.
- Get instant alerts when visitors press your Doorbell or trigger the built-in motion sensors.
- Watch over your home in crystal-clear HD video.
- Protect your home - day or night - with infrared night vision.
- Communicate with visitors via two-way audio with noise cancellation.
- WIFI signal,the whole network interconnection. Remote calling, intercom, and unlock. Using most popular touch key technology, advanced and high Sensitivity, greatly extend the key life. Clear camera, and equipped with automatic light sensitive chip. If the light is not enough, it will use the IR night vision function to monitor and capture HD video and pictures.
- Motion detection function. You can open or close this function according to different working environments. Capture and video mode for choosing. Powered by DC 5V, more safe.
- Simple app operation in mobile phone, easy installation. support anrdoid and ios app APP download address remind: please search " door phone" for apple store(for ios app) and for google player(for android app).
- High-strength tempered glass surface, luxury, anti-resistant and scratches, has longer working life. With rain cover and touch key surface, better waterproof function.
- Easy to install. You can fix it with screws, or paste with double-sided tape. One door phone can be connected to several mobile phone, PC, or computers. Optional indoor dingdong doorbells to match. While calling to the mobile phone, the indoor doorbell will ring too.