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
Pierre Curie voluntarily exposed his arm to the action of radium for several hours. This resulted in damage resembling a burn that developed progressively and required several months to heal. Henri Becquerel had by accident a similar burn as a result of carrying in his vest pocket a glass tube containing radium salt. He came to tell us of this evil effect of radium exclaiming in a manner at once delighted and annoyed: “I love it but I owe it a grudge.” ~ Marie Curie 1867 to 1934
Tracy Hall (1919–2008) USA – synthetic diamond.
Margaret E. Knight (1838–1914) USA – machine that completely constructs box-bottom brown paper bags.
Stanislav Brebera (1925–2012) Czech Republic – Semtex explosive.
Pyotr Kapitsa (1894–1984) Russia – first ultrastrong magnetic field creating techniques basic low-temperature physics inventions.
Ivan Polzunov (1728–1766) Russia – first two-cylinder steam engine.
Hon Lik (1951 - ) Chinese. electronic cigarette.
Zheng He (1371–1433) China – Chinese treasure ship.
Reginald Fessenden (1866–1932) Canada – two-way radio.
Nils Bohlin (1920–2002) Sweden – the three-point seat belt.
Oleg Losev (1903–1942) Russia – light-emitting diode crystadine.
Jonas Ferdinand Gabriel Lippmann (1845–1921) France – Lippmann plate Integral imaging Lippmann electrometer.
George de Mestral (1907–1990) Switzerland – Velcro.
Ed Seymour (inv. c. 1949) USA – Aerosol paint.
Jozef Karol Hell (1713–1789) Slovakia – the water pillar.
Sergey Brin (born 1973) Russia/USA – with Larry Page invented Google web search engine.
Vincent Joseph Schaefer (1906–1993) USA – a.o. Cloud seeding by dry ice.
Mardi bin Ali al-Tarsusi (c. 1187) Middle East – counterweight trebuchet mangonel.
Ladislas Starevich (1882–1965) Russia/France – puppet animation live-action/animated film.
Larry Sanger (born 1968) together with Jimmy Wales (1966–) USA – Wikipedia.
Gustav Tauschek (1899–1945) Austria – Drum memory.
Chemistry unlike other sciences sprang originally from delusions and superstitions and was at its commencement exactly on a par with magic and astrology. ~ Thomas Thomson - 1773 to 1852
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
Outstanding examples of genius – a Mozart a Shakespeare or a Carl Friedrich Gauss – are markers on the path along which our species appears destined to tread. - Fred Hoyle 1915 to 2001 Astrophysicist
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 uniform character of mathematics is the essence of science for mathematics is the foundation of all exact scientific knowledge. ~ David Hilbert 1862 – 1943 Mathematician
Simple laws can very well describe complex structures. The miracle is not the complexity of our world but the simplicity of the equations describing that complexity. ~ Sander Bais b. 1945 - Theoretical Physicist
A fact acquires its true and full value only through the idea which is developed from it. - Justus von Liebig 1803 to 1873 Chemist
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- $5 Preloaded 30-Day wireless service at 2¢ per VOICE TEXT & 2¢/MB nationwide 2G 3G & 4G LTE Data. That's 250 minutes talk or 250 texts or 250 MB Data.
- Our prepaid sim cards are designed for users that need a minimal amount of airtime each month/year. Sim card is free and pre-cut in 3 sizes to fit any device, standard-sized SIM, Micro-sized SIM or/and a Nano-sized SIM card.
- Supports GPS tracking devices such as but not limited to vehicle trackers, kid/pets tracker, personal tracker, senior tracker.
- No Activation fee NO Contract NO Credit Check.
- Our service will work within the United States in partnership with T-Mobile Network. Roaming is not supported in our plans.
- Control any plug in device from anywhere and keep an eye on your device's energy usage using the Geeni app (iOS 8 or higher/Android 4.1 or higher)
- No hub required, Wi-Fi built-in
- Set your schedule and automatically tailor your plugged in devices to perfectly fit your life
- Save money, energy and the environment
- Voice control with Amazon Alexa & Google assistant
- Powerful function :pedometer, distance, calorimetric measurement, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, sleep monitoring, SMS and content alerts, alarm settings, incoming calls alert, caller ID display, application messages alert, find your phone, anti lost, reminder of exercise goal.
- Methods: scan the QR code on the manual or download "Wearfit" in APP store. Please make sure your phone Bluetooth function was turned on. Open "Wearfit", click the selection of link to bracelet, find the device name in the list and click it. Then enter the main interface. The "wearfit" app is compatible with Bluetooth 4 and above smart phones, iOS version 8 above, or Android version 4.4 above.
- To measure heart rate, blood pressure and oxygen, it need to wait for 1-2 minutes. The measurements are for reference only, as it's not a medical device after all.
- The bracelet is made of special silicone, comfortable for wearing, suitable for 5.5-8 inch various sizes of wrist. 80mA lithium battery, charging 1.5 hours about 5 days of standby time.
- Waterproof: waterproof grade IP67, can effectively prevent the rainwater, sweat, and prevent dust.