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
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
Mutsuo Sugiura (1918–1986) China – Esophagogastroduodenoscope.
Nikolai Lebedenko Russia – Tsar Tank the largest armored vehicle in history.
Jack Kilby (1923–2005) USA – patented the first integrated circuit.
Guglielmo Marconi (1874–1937) Italy – radio telegraphy.
Henry Maudslay (1771–1831) UK – screw-cutting lathe bench micrometer.
Hanaoka Seishū (1760–1835) Japan – General anaesthetic.
Ami Argand (1750–1803) France – Argand lamp.
Peter I the Great (Pyotr Alexeyevich Romanov) Tsar and Emperor of Russia (1672–1725) Russia – decimal currency yacht club sounding line with separating plummet (sounding weight probe).
Nick Sheridon (1928–1962) USA – Electronic paper.
Robert Swanson (1905–1994) Canada – Invented and developed the first multi-chime air horn for use with diesel locomotives.
Jacob Davis (1868–1908) USA – riveted jeans.
Franc Trkman (1903–1978) Slovenia – electrical switches accessories for opening windows.
Moritz von Jacobi (1801–1874) Germany/Russia – electrotyping electric boat.
Kazuo Hashimoto (died 1995) Japan – a.o. Caller-ID answering machine.
Lyman Spitzer (1914–1997) USA – Stellarator (physics).
Robert Watson-Watt (1892–1973) Scotland – microwave radar.
Guy Severin (1926–2008) Russia – extra-vehicular activity supporting system.
Mikhail Dolivo-Dobrovolsky (1862–1919) Poland/Russia – three-phase electric power (first 3-phase hydroelectric power plant 3-phase electrical generator 3-phase motor and 3-phase transformer).
Theodor Svedberg (1884–1971) Sweden – Analytical ultracentrifuge.
George Antheil (1900–1959) together with Hedy Lamarr (1914–2000) USA Frequency-hopping spread spectrum.
I think it would be quite wrong to suggest that my colleagues have rejected me or that I reject them. Quite the reverse. It’s only a small vociferous group – mainly biologists I’m sorry to say – that go beyond ordinary scientific criticism and start becoming personal. ~ James Lovelock 1919 – present - Gaia Theorist Inventor Scientific Polymath
Every aspect of the world today – even politics and international relations – is affected by chemistry. ~ Linus Pauling - 1901 to 1994
The country which is in advance of the rest of the world in chemistry will also be foremost in wealth and in general prosperity. ~ William Ramsay - 1852 to 1916
The time however has arrived when biology must like the other sciences make a fresh start in a purely speculative direction free from all entanglement with medical or any other art. ~ Auguste Compte 1798 to 1857 - Philosopher of Science
There may be babblers wholly ignorant of mathematics who dare to condemn my hypothesis upon the authority of some part of the Bible twisted to suit their purpose. I value them not and scorn their unfounded judgment. ~ Nicolaus Copernicus 1473 – 1543 Mathematician and Astronomer
But though the professed aim of all scientific work is to unravel the secrets of nature it has another effect not less valuable on the mind of the worker. It leaves him in possession of methods which nothing but scientific work could have led him to invent. ~ James Clerk Maxwell 1831 to 1879
God created two acts of folly. First He created the Universe in a Big Bang. Second He was negligent enough to leave behind evidence for this act in the form of microwave radiation. - Paul Erdős 1913 to 1996 Mathematician
- $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.